{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"Al - Li alloys are of considerable interest because of their novel properties suitable for aerospace applications. The precipitation hardened Al-Li-Cu-Mg-Zr alloys have attracted plentiful interest. An investigation was made to study the influence of grain structure on microstructure, tensile properties and fracture behavior. The results show that tensile properties are impaired when grain structure changes from fully unrecrystallized, recrystallized to a little partially recrystallized grain structures. The sample with fully unrecrystallized grain structure fractures in a transgranular mode and possesses higher tensile strength due to a contribution of strong texture. The recrystallized and a little partially recrystallized grain structures fail in a mixed mode of intergranular and transgranular cracking. In the latter grain structure, intergranular region is larger while tensile properties are lower. In addition, an attempt is made to discuss these experimental results.","authors":[],"categoryName":"|","doi":"","fpage":"47","id":"1b6d2971-43aa-40ee-b9ee-244acef02b13","issue":"1","journal":{"abbrevTitle":"ZFM","id":"a8e7c1f1-8127-4c84-a2e1-951df624518e","issnPpub":"0044-3093","publisherId":"ZFM","title":"Zeitschrift Fur Metallkunde"},"keywords":[{"id":"3f0a7eec-87d3-4e35-b03a-1b72cefd680a","keyword":"cryogenic temperatures;mechanical-properties;microstructure;toughness;deformation;strength;ambient","originalKeyword":"cryogenic temperatures;mechanical-properties;microstructure;toughness;deformation;strength;ambient"}],"language":"en","publisherId":"0044-3093_1992_1_1","title":"GRAIN-STRUCTURE, TENSILE PROPERTIES AND FRACTURE-BEHAVIOR OF AN AL-LI-CU-MG-ZR ALLOY","volume":"83","year":"1992"},{"abstractinfo":"Cryogenic strength,ductility and toughness of AI-Li alloy 8090 were found to be superior to those at ambient temperature,and up to optima at about 20 K.Different aging regimes may only influence on its cryogenic yield strength and elongation.","authors":[{"authorName":"SUN Dongsheng LI Fengzhao ZHANG Gang Shandong Polytechnic University","id":"539558e0-4965-4333-9979-3088d715fea7","originalAuthorName":"SUN Dongsheng LI Fengzhao ZHANG Gang Shandong Polytechnic University"},{"authorName":"Jinan","id":"764c6417-c45a-4989-9b64-892b1c1c25b9","originalAuthorName":"Jinan"},{"authorName":"China Lecturer","id":"f8088407-8e56-40a8-8416-7cf56178c1b9","originalAuthorName":"China Lecturer"},{"authorName":"Centre of Materials Testing and Analysis","id":"5977132a-a600-4d4d-b582-bfa2485585b8","originalAuthorName":"Centre of Materials Testing and Analysis"},{"authorName":"Shandong Polytechnic University","id":"0ad79c91-c2a3-424f-8506-f458a5dd3c77","originalAuthorName":"Shandong Polytechnic University"},{"authorName":"Jinan 250014","id":"6f2daa2f-8e0d-4cc9-b574-22b69ca5d0f5","originalAuthorName":"Jinan 250014"},{"authorName":"China","id":"7cab9ec3-4fb0-4389-9753-2abbcdb3a229","originalAuthorName":"China"}],"categoryName":"|","doi":"","fpage":"78","id":"fb3b59c2-78fb-4011-929e-0dee74cd21b1","issue":"2","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"48262874-c56f-4392-a4c5-29e179c02d20","keyword":"Al-Li alloy","originalKeyword":"Al-Li alloy"},{"id":"9b623b60-fee6-4016-ae2d-b21830166872","keyword":"null","originalKeyword":"null"},{"id":"174b95a9-8354-4806-903a-8ff8f11aeca0","keyword":"null","originalKeyword":"null"},{"id":"db5ffffa-b933-43f7-939d-d118f39387c2","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_1993_2_1","title":"MECHANICAL PROPERTIES OF Al-Li ALLOY 8090 AT CRYOGENIC TEMPERATURES","volume":"6","year":"1993"},{"abstractinfo":"Conventional crystalline materials usually exhibit a ductile to brittle transition behaviour at low temperatures. An increase in the strength is always accompanied by a decrease in the plasticity. Here the authors report on a significant enhancement in both compressive strength and plasticity of a Ti-based bulk metallic glass (BMG) deformed at low temperatures. The ductilization of the BMG system can be evidently attributed to the formation of dense shear bands and the rotation mechanism of shear bands. The cryogenic Surroundings can effectively slow down the mobility and diffusion of the atoms and consequently, suppress the nucleation and growth of nanocrystals during the deformation process, allowing the simultaneous improvement in the mechanical responses of the glassy alloy to compressive loading far below the ambient temperature. (C) 2008 Elsevier B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"203","id":"deda8b36-d6a1-4546-8fbb-81ef5fb56b09","issue":"42737","journal":{"abbrevTitle":"MSAEAMPMAP","id":"29fa6a83-07f2-4d3a-af3e-fac686227352","issnPpub":"0921-5093","publisherId":"MSAEAMPMAP","title":"Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing"},"keywords":[{"id":"2c902236-b58c-404b-a3cd-f474e0672b4d","keyword":"Metallic glasses;Mechanical properties;Cryogenic temperatures;Shear;bands;Plasticity;bulk amorphous-alloys;shear bands;mechanical-properties;matrix;composites;room-temperature;deformation;tensile;ductility;nanocrystallization;behavior","originalKeyword":"Metallic glasses;Mechanical properties;Cryogenic temperatures;Shear;bands;Plasticity;bulk amorphous-alloys;shear bands;mechanical-properties;matrix;composites;room-temperature;deformation;tensile;ductility;nanocrystallization;behavior"}],"language":"en","publisherId":"0921-5093_2008_42737_9","title":"Enhanced strength and plasticity of a Ti-based metallic glass at cryogenic temperatures","volume":"498","year":"2008"},{"abstractinfo":"The method of high-pressure hydrogen charging was used to investigate the internal hydrogen effects on cryogenic mechanical properties of two Cr-Ni-Mn-N austenitic steels, 22-13-5 and 21-6-9. Specimens saturated with hydrogen up to 65×10-6~68×10-6were tested in air at temperatures ranging from 77 to 293 K. Hydrogen caused the increase in cryogenic strength, both yield strength and ultimate tensile strength. Hydrogen decreased cryogenic ductility, and the maximum hydrogen embrittlement (HE) tendency was found at a certain low temperature. Cr-Ni-Mn-N austenitic steels showed the feature: δL>ΨL at low temperatures, here, δL andΨL are the hydrogen induced loss rates of elongation and reduction of area, respectively. Hydrogen had less effect on cryogenic Charpy impact toughness and notched tensile strength, however, hydrogen decreased cryogenic fracture toughness of the steels. At temperature below Md, the fracture toughness was obviously decreased due to the formation of strain-induced martensites, whether hydrogen was charged or not.","authors":[{"authorName":"Luming MA","id":"aa5975ee-4abb-4475-a23f-877db1bd8be4","originalAuthorName":"Luming MA"},{"authorName":" Guojun LIANG","id":"fb9c28f7-9600-43e5-bfa4-1dddd5138cfa","originalAuthorName":" Guojun LIANG"},{"authorName":" Jun TAN","id":"5fa790cf-22f3-4d7c-91ed-0b2e323ba914","originalAuthorName":" Jun TAN"},{"authorName":" Lijian RONG","id":"8930bef9-77a1-457f-aec7-12c34ead74c5","originalAuthorName":" Lijian RONG"},{"authorName":" Yiyi LI","id":"d713a096-152c-4239-9624-5906952015a3","originalAuthorName":" Yiyi LI"}],"categoryName":"|","doi":"","fpage":"67","id":"2c233c0e-3727-4131-90e1-0c7a69a7357c","issue":"1","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术(英文)"},"keywords":[],"language":"en","publisherId":"1005-0302_1999_1_15","title":"Effect of Hydrogen on Cryogenic Mechanical Properties of Cr-Ni-Mn-N Austenitic Steels","volume":"15","year":"1999"},{"abstractinfo":"A new ultrahigh strength pipeline steel with high yield strength and high impact toughness was fabricated in this work, and mechanical properties and microstructure of the steel were investigated in this paper. The steel exhibited outstanding mechanical properties with yield strength levels of up to 951MPa and Tensile strength levels up to 1023MPa. The sharp notch-toughness with absorbed energy values of 227J/cm2 at Temperatures of -30℃ and %shear of up to 95% in drop weight tear test (DWTT) at temperatures of -20℃ were achieved. It was found that microstructure of the steel comprises a majority of low carbon lath bainite with different sublaths and sub-sublaths, meanwhile there is a high density of dislocation between laths and the dispersed film-like martensite-austenite (M-A) constituents. Most of the precipitates in this steel are duplex type containing Nb and Ti with characterized morphology of cap. The precipitation size is a few to a few tens nanometers.","authors":[{"authorName":"ZHANG Jiming","id":"0e5a6c24-0aa1-4119-aa4a-ee165b8b038b","originalAuthorName":"ZHANG Jiming"},{"authorName":"SUN Weihua","id":"c4aa880d-1189-460f-909d-077162adcdf0","originalAuthorName":"SUN Weihua"},{"authorName":"SUN Hao","id":"92ea8b08-78aa-4a2a-88ff-99f4c4966a28","originalAuthorName":"SUN Hao"}],"categoryName":"|","doi":"","fpage":"63","id":"1d9306bf-ffa3-4cea-bf43-e507593b1d2e","issue":"10","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[{"id":"9647d9f3-10ec-4286-85f4-b8be29ca8e2c","keyword":"pipeline steel;mechanical properties;lath bainite;precipitate","originalKeyword":"pipeline steel;mechanical properties;lath bainite;precipitate"}],"language":"en","publisherId":"1006-706X_2010_10_11","title":"Mechanical Properties and Microstructure of X120 Grade High Strength Pipeline Steel","volume":"17","year":"2010"},{"abstractinfo":"The method of high-pressure hydrogen charging was used to investigate the internal hydrogen effects on cryogenic mechanical properties of two Cr-Ni-Mn-N austenitic steels, 22-13-5 and 21-6-9. Specimens saturated with hydrogen up to 65x10(-6) similar to 68x10(-6) were tested in air at temperatures ranging from 77 to 293 K. Hydrogen caused the increase in cryogenic strength. both yield strength and ultimate tensile strength. Hydrogen decreased cryogenic ductility, and the maximum hydrogen embrittlement (HE) tendency was found at a certain low temperature. Cr-Ni-Mn-N austenitic steels showed the feature: delta(L) > psi(L) at low temperatures, here, delta(L) and psi(L) are the hydrogen induced loss rates of elongation and reduction of area, respectively Hydrogen had less effect on cryogenic Charpy impact toughness and notched tensile strength, however, hydrogen decreased cryogenic fracture toughness of the steels. At temperature below Md, the fracture toughness was obviously decreased due to the formation of strain-induced martensites, whether hydrogen was charged or not.","authors":[],"categoryName":"|","doi":"","fpage":"67","id":"4c06bb9b-ae50-4d0f-83ea-90b8904be947","issue":"1","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术(英文)"},"keywords":[],"language":"en","publisherId":"1005-0302_1999_1_2","title":"Effect of hydrogen on cryogenic mechanical properties of Cr-Ni-Mn-N austenitic steels","volume":"15","year":"1999"},{"abstractinfo":"Si-B-O-N powder without B-O bonds synthesized by polymeric precursor were hot-pressed into ceramics at different temperatures. The variations of microstructure and mechanical properties of Si-B-O-N ceramics have been investigated. Crystallization of Si-B-O-N ceramics occurred at about 1400°C. Density, elastic modulus, and flexural strength of the ceramics increased with the increasing sintering temperatures, and reached to their maximum values at 1600°C. By contrast,hardness and fracture toughness of the ceramics monotonically changed with increasing sintering temperatures. Hardness decreased, while the fracture toughness increased. The principal toughening mechanisms including crack deflection, crack bridging and plate grain pulling-out effects are discussed","authors":[{"authorName":"Junbao ZHANG","id":"0dd837ea-bf63-4a6a-aab3-e86803c65ec9","originalAuthorName":"Junbao ZHANG"},{"authorName":" Guangwu WEN","id":"e25feed1-10de-40fa-88d8-460db2e02f1d","originalAuthorName":" Guangwu WEN"},{"authorName":" Tingquan LEI","id":"012ddf51-a18d-450c-917b-0f7be51523bd","originalAuthorName":" Tingquan LEI"},{"authorName":" Dechang JIA","id":"93796b61-ca27-4a8a-b365-81880946460c","originalAuthorName":" Dechang JIA"},{"authorName":" Jiancun RAO","id":"d310b41d-9f6d-46df-86ae-4a8b0244bb31","originalAuthorName":" Jiancun RAO"}],"categoryName":"|","doi":"","fpage":"343","id":"28358407-cb9c-4d75-9faf-78385c3fa5ef","issue":"4","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术(英文)"},"keywords":[{"id":"b17e5691-e961-4911-90a6-91b290046de0","keyword":"Si-B-O-N ceramics","originalKeyword":"Si-B-O-N ceramics"},{"id":"d870799f-9475-4f0b-b795-06feee32f493","keyword":"null","originalKeyword":"null"},{"id":"03265ae3-3916-4be3-8f3f-8b0bce3f1418","keyword":"null","originalKeyword":"null"},{"id":"7363d98d-0e0b-4e1b-9aa4-ba4f4a142997","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1005-0302_2002_4_19","title":"Variations of Microstructure and Mechanical Properties of Si-B-O-N Ceramics with Sintering Temperatures","volume":"18","year":"2002"},{"abstractinfo":"A Hall-Petch-type dependence of microhardness of Ti/TiN multilayers on their modulation wavelength LAMBDA has been set up. Microstructural studies have shown a linear dependence of their grain size with LAMBDA. Combining the results of mechanical and microstructural studies provides the basis that the hardness behavior of Ti/TiN multilayers can be attributed to the grain size refining effect.","authors":[],"categoryName":"|","doi":"","fpage":"200","id":"b7fc2a40-f765-4296-a42b-57c66d042480","issue":"42738","journal":{"abbrevTitle":"JOMAMM","id":"5d7a0764-3359-4184-bc25-ad22bbdaf30a","issnPpub":"0304-8853","publisherId":"JOMAMM","title":"Journal of Magnetism and Magnetic Materials"},"keywords":[],"language":"en","publisherId":"0304-8853_1993_42738_1","title":"MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF METAL-CERAMIC TI/TIN MULTILAYERS","volume":"126","year":"1993"},{"abstractinfo":"Mechanical properties of quenching, intercritical quenching and tempering (QLT) treated steel containing Ni of 9% were evaluated from specimens subject to various tempering temperatures. The detailed microstructures of steel containing Ni of 9% at different tempering temperatures were observed by optical microscope (OM) and transmission electron microscope (TEM). The volume fraction of austenite was estimated by XRD. The results show that high strength and cryogenic toughness of steel containing Ni of 9% are obtained when the tempering temperature are between 540 and 580 ℃. The microstructure keeps the dual phase lamellar structure after the intercritical quenching and there is cementite created in the Nirich constituents when tempering temperature is 540 ℃. When tempering temperatures are between 560 and 580 ℃, the reversed austenites (γ′) grow up and the dual phase lamellar structure is not clear. The γ′ becomes instable at 600 ℃. When tempered at temperature ranging from 500 to 520 ℃, the increase of dislocation density in the lamellar matrix makes both tensile strength and yield strength decrease. When tempered at 540 ℃ and higher temperature, the yield strength decreases continuously because the C and alloying elements in the matrix are absorbed by the cementite and the γ′, so the yield ratio is decreased by the γ′. There are two toughness mechanisms at different tempering temperatures. One is that the precipitation of cementite absorbs the carbon in the steel which plays a major role in improving cryogenic toughness at lower temperature. Another is that the γ′ and the purified matrix become major role at higher tempering temperature. When the tempering temperature is 600 ℃, the stability of γ′ is decreased quickly, even the transformation takes place at room temperature, which results in a sharp decrease of CharpyV impact energy at 77 K. The tempering temperature range is enlarged by the special distribution of cementite and the lamellar structure.","authors":[{"authorName":"ZHAO Xiqing","id":"02cf123c-c990-4105-8f76-94065506f84a","originalAuthorName":"ZHAO Xiqing"},{"authorName":"PAN Tao","id":"15cfe83d-0f01-458d-a4e9-88b61af7de91","originalAuthorName":"PAN Tao"},{"authorName":"WANG Qingfeng","id":"617c180d-ced8-4fa2-bad6-4750e7b70092","originalAuthorName":"WANG Qingfeng"},{"authorName":"SU Hang","id":"1d93c859-5415-4b6f-b7b9-8a05ef8d9930","originalAuthorName":"SU Hang"},{"authorName":"YANG Caifu","id":"8c74e8c6-95d8-4d7a-a172-8c8b90e08855","originalAuthorName":"YANG Caifu"},{"authorName":"YANG Qingxiang","id":"210430dd-65ad-49cc-bfe1-3daedb592c45","originalAuthorName":"YANG Qingxiang"}],"categoryName":"|","doi":"","fpage":"47","id":"7c3a24c7-3c42-48a2-906e-b83a8710296c","issue":"5","journal":{"abbrevTitle":"GTYJXBYWB","coverImgSrc":"journal/img/cover/GTYJXBEN.jpg","id":"1","issnPpub":"1006-706X","publisherId":"GTYJXBYWB","title":"钢铁研究学报(英文版)"},"keywords":[{"id":"7778a6fc-5222-4012-b9df-516f286a64c9","keyword":"steel containing Ni of 9% ","originalKeyword":"steel containing Ni of 9% "},{"id":"afc99048-2159-4628-839a-443271e49414","keyword":" tempering temperature ","originalKeyword":" tempering temperature "},{"id":"9a11928d-8944-427a-9808-8151c0222abb","keyword":" cementite ","originalKeyword":" cementite "},{"id":"69d865c6-afc3-4977-8ea9-fab04a2e2fda","keyword":" reversed austenite ","originalKeyword":" reversed austenite "},{"id":"04eba89c-0c06-407d-855d-938961b9e19a","keyword":" cryogenic toughness","originalKeyword":" cryogenic toughness"}],"language":"en","publisherId":"1006-706X_2011_5_12","title":"Effect of Tempering Temperature on Microstructure and Mechanical Properties of Steel Containing Ni of 9%","volume":"18","year":"2011"},{"abstractinfo":"The mechanical properties of 20 vol.-%SiC whisker reinforced ZrO2-Y2O3 composites containing 2 and 6 mol-% Y2O3 were measured at room temperature and the fracture surface was examined. The results indicate that the mechanical behaviour of the composites is strongly influenced by the Y2O3 content. The magnitude of the enhancement ofthe toughness in composites containing 2 mol.-% Y2O3 compared with unreinforced ZrO2-Y2O3 matrix is larger than that for the composites containing 6 mol-% Y2O3. Crack propagation modes were characterised by crack deflection, whisker bridging, and whisker pullout. High resolution electron microscopic observations show that in composites containing 2 mol.-% Y2O3 the whiskers are directly bonded to the matrix. However; in composites containing 6 mol.-%Y2O3 there is always a thick amorphous layer at the interface, indicating that the high Y2O3 content has promoted the formation of interfacial amorphous layers. These interfacial amorphous layers strengthen the interfacial bonding, resulting in a composite with a low fracture toughness.","authors":[],"categoryName":"|","doi":"","fpage":"529","id":"4a493076-df49-46b6-8735-363a6b1d10a1","issue":"6","journal":{"abbrevTitle":"MSAT","id":"5c4ea523-f3ab-4618-9c21-537efff1d7fc","issnPpub":"0267-0836","publisherId":"MSAT","title":"Materials Science and Technology"},"keywords":[],"language":"en","publisherId":"0267-0836_1995_6_1","title":"MICROSTRUCTURE AND MECHANICAL-PROPERTIES OF SIC WHISKER-REINFORCED ZRO2-Y2O3 COMPOSITES","volume":"11","year":"1995"}],"totalpage":1218,"totalrecord":12178}