{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"为了进一步研究自制<span style=\"color:red\">CrB</span>粉芯丝材电弧喷涂层的高温氧化行为,在Q235钢表面电孤喷涂分别以FeB,<span style=\"color:red\">CrB</span>为主要粉芯成分的涂层B-1和B-2.采用金相显微镜分析了2种涂层的显微组织结构,采用高温氧化试验考察了其耐高温氧化性能.结果表明:2种涂层的微观结构都由分布在铁基金属中的硬质相粒子及其氧化物和少数孔隙组成,在650℃时2种涂层都能对基体起到较好的防护作用;B-2涂层抗高温氧化性能优于B-1涂层,主要原因是B-2涂层在高温下可以生成致密的Cr2O3氧化膜,起到了减缓铁氧化的作用.","authors":[{"authorName":"李学胜","id":"eecb1300-28d0-480c-8159-acc966db3a88","originalAuthorName":"李学胜"},{"authorName":"董立先","id":"855cf976-5b9f-40bf-9993-b07fc6917c93","originalAuthorName":"董立先"},{"authorName":"孙建波","id":"9344de07-8d7c-4ed6-93ad-bda201312314","originalAuthorName":"孙建波"},{"authorName":"王勇","id":"a7ee9d5a-2b59-4717-a86e-8c8339b36b5c","originalAuthorName":"王勇"}],"doi":"","fpage":"27","id":"ddf55334-ea0f-4137-801f-5a1700351632","issue":"10","journal":{"abbrevTitle":"CLBH","coverImgSrc":"journal/img/cover/CLBH.jpg","id":"7","issnPpub":"1001-1560","publisherId":"CLBH","title":"材料保护"},"keywords":[{"id":"965aed10-57df-4825-8df9-50fe9586a4de","keyword":"电弧喷涂","originalKeyword":"电弧喷涂"},{"id":"f10f16cc-2cfd-429f-9142-113332f1a9c0","keyword":"Fe","originalKeyword":"Fe"},{"id":"871a1485-9638-4ec2-bff1-10e7de309096","keyword":"<span style=\"color:red\">CrB</span>","originalKeyword":"CrB"},{"id":"6ff6dfa6-6777-4871-b02c-640a8b64a311","keyword":"粉芯丝材","originalKeyword":"粉芯丝材"},{"id":"a4fd1ee5-9285-4b68-8409-d0c3e90967e1","keyword":"组织结构","originalKeyword":"组织结构"},{"id":"c57b5e57-ce46-4a91-903e-43704540ec93","keyword":"高温氧化","originalKeyword":"高温氧化"}],"language":"zh","publisherId":"clbh201410009","title":"粉芯丝材电弧喷涂层的组织和高温氧化行为","volume":"47","year":"2014"},{"abstractinfo":"By electron and x-ray diffractionwe establish that the <span style=\"color:red\">CrB</span>4 compound discovered over 40 years ago crystallizes in the oP 10 (Pnnm) structure, in disagreement with previous experiments but in agreement with a recent first-principles prediction. The 3D boron network in this structure is a distorted version of the rigid carbon sp(3) network proposed recently for the high-pressure C-4 allotrope. Our systematic density functional theory analysis of the electronic, structural, and elastic properties in ten related transition metal TMB4 tetraborides (TM = Ti, V, Cr, Mn, Fe and Y, Zr, Nb, Mo, Tc) identifies <span style=\"color:red\">CrB</span>4 as the prime candidate to be a superhard material. In particular, the compound's calculated weakest shear and tensile stresses exceed 50 GPa, and its Vickers hardness is estimated to be 48 GPa. We compare the reported and estimated Vickers hardness for notable (super) hard materials and find that the <span style=\"color:red\">CrB</span>4 calculated value is exceptionally high for a material synthesizable under standard ambient-pressure conditions.","authors":[],"categoryName":"|","doi":"","fpage":"","id":"50be5fce-3a9a-4e0b-8814-9b3ab18f88e0","issue":"14","journal":{"abbrevTitle":"PRB","id":"48ba155b-d6de-484c-bd85-973be949b8c5","issnPpub":"1098-0121","publisherId":"PRB","title":"Physical Review B"},"keywords":[{"id":"57c9f105-f7e8-41a3-ae80-6e974446fb49","keyword":"crystal-structure;rhenium diboride;pressure;boron;hardness;diamond;harder","originalKeyword":"crystal-structure;rhenium diboride;pressure;boron;hardness;diamond;harder"}],"language":"en","publisherId":"1098-0121_2012_14_1","title":"Structure, bonding, and possible superhardness of <span style=\"color:red\">CrB</span>4","volume":"85","year":"2012"},{"abstractinfo":"根据固体与分子经验电子理论( EET),计算不同 Y的质量分数对 <span style=\"color:red\">CrB</span>价电子结构影响.结果表明: (Cr 1-xYx)B中 Y的质量分数增加,最强键和次强键共价电子数减少,价电子结构均匀分布因子上升, (Cr 1-xYx)B韧性提高.","authors":[{"authorName":"杜晓东","id":"2288da3a-e20a-418b-ac1f-4e065f4c5484","originalAuthorName":"杜晓东"},{"authorName":"丁厚福","id":"e6cc0b30-f233-4e6f-9be6-cebe283bd117","originalAuthorName":"丁厚福"},{"authorName":"宣天鹏","id":"b06c4c89-9dc9-43b7-9aeb-04b6bbde4c7d","originalAuthorName":"宣天鹏"}],"doi":"10.3969/j.issn.1004-244X.2004.05.001","fpage":"1","id":"b06e4dab-6e3a-4a6e-9872-359d73f7fdf0","issue":"5","journal":{"abbrevTitle":"BQCLKXYGC","coverImgSrc":"journal/img/cover/BQCLKXYGC.jpg","id":"4","issnPpub":"1004-244X","publisherId":"BQCLKXYGC","title":"兵器材料科学与工程   "},"keywords":[{"id":"ef0d067a-ca67-4cf4-9a43-800adda8cc62","keyword":"稀土元素","originalKeyword":"稀土元素"},{"id":"e02bce25-d6bf-47ee-a6ed-de02d81273c0","keyword":"EET","originalKeyword":"EET"},{"id":"77227868-e069-4936-98fa-2d2652f7027c","keyword":"韧性","originalKeyword":"韧性"},{"id":"30f584bc-f741-4204-815f-926a8adbc78c","keyword":"(Cr 1-xYx)B","originalKeyword":"(Cr 1-xYx)B"},{"id":"7fa40ffe-0fc9-4e14-91bc-4a8feb5b4749","keyword":"Ni基合金","originalKeyword":"Ni基合金"}],"language":"zh","publisherId":"bqclkxygc200405001","title":"稀土对<span style=\"color:red\">CrB</span>价电子结构的影响","volume":"27","year":"2004"},{"abstractinfo":"用超音速电弧喷涂方法制备<span style=\"color:red\">CrB</span>颗粒增强的MMC涂层,利用金相显微镜、扫描电镜(SEM)及电子探针(EPMA)分析方法,对涂层的微观组织及微区成分进行分析;在实际循环流化床锅炉水冷壁上进行现场试验以检测涂层的耐高温冲蚀磨损性能,对涂层冲蚀表面的微观形貌进行分析,研究涂层的耐磨机理.结果表明:涂层具有复合材料的典型层状组织特征,金属基体在涂层中连续分布;增强颗粒主要为Cr的硼化物和Cr的氧化物.硬质相颗粒均匀弥散分布在涂层中,起到强化作用,并可阻挡冲蚀划痕的扩展,减缓了涂层金属基体受磨损的进程;塑、韧性较好的金属基体可缓冲冲蚀粒子对硬质相颗粒的冲击,使涂层具有优良的耐冲蚀磨损性能.","authors":[{"authorName":"邓化凌","id":"baf5cde1-ca40-4900-bf74-579ef3105383","originalAuthorName":"邓化凌"},{"authorName":"宋云京","id":"09d4a6e3-f0c8-490c-b95c-cf55b0768094","originalAuthorName":"宋云京"},{"authorName":"王勇","id":"eab64f24-d89a-410b-b99a-bb4f2d76d2ca","originalAuthorName":"王勇"},{"authorName":"岳增武","id":"d5ca87ab-9117-479c-886e-74e0631ce991","originalAuthorName":"岳增武"},{"authorName":"肖世荣","id":"532c64a3-b242-404f-adff-f138fa38d029","originalAuthorName":"肖世荣"}],"doi":"10.3969/j.issn.1004-244X.2008.01.005","fpage":"19","id":"e1ded34b-1ef4-4d7d-b9e0-657c56c1fbbd","issue":"1","journal":{"abbrevTitle":"BQCLKXYGC","coverImgSrc":"journal/img/cover/BQCLKXYGC.jpg","id":"4","issnPpub":"1004-244X","publisherId":"BQCLKXYGC","title":"兵器材料科学与工程   "},"keywords":[{"id":"7e454ab7-1272-44e8-8c16-61738ec4d57a","keyword":"<span style=\"color:red\">CrB</span>颗粒增强","originalKeyword":"CrB颗粒增强"},{"id":"c9017798-2ab4-46fe-9bb3-f7ca8d7b8fc6","keyword":"MMC涂层","originalKeyword":"MMC涂层"},{"id":"358f04f1-0365-40af-960b-a5ec31a09164","keyword":"微观组织","originalKeyword":"微观组织"},{"id":"ab7364c6-f59d-462b-8af3-d37e8e586f57","keyword":"冲蚀磨损","originalKeyword":"冲蚀磨损"},{"id":"899f20ad-2b8c-4da7-9443-6874a9a79aa8","keyword":"机理","originalKeyword":"机理"}],"language":"zh","publisherId":"bqclkxygc200801005","title":"<span style=\"color:red\">CrB</span>颗粒增强MMC涂层的组织及其耐磨机理","volume":"31","year":"2008"},{"abstractinfo":"对新型的高碳低合金75Si2Mn1.5<span style=\"color:red\">CrB</span>钢进行了在200℃等温淬火工艺组织和力学性能的研究.利用激光显微镜、透射电子显微镜(TEM)和X射线衍射仪(XRD)对等温淬火处理的试验用钢进行了观察和分析.结果表明,75Si2Mn1.5<span style=\"color:red\">CrB</span>钢经920℃奥氏体化快冷至200℃等温处理后,组织为带有奥氏体薄膜的贝氏体铁素体、马氏体和残留奥氏体.75Si2Mn1.5<span style=\"color:red\">CrB</span>钢在200℃等温22 h时,其综合力学性能良好.","authors":[{"authorName":"艾地","id":"3b284d51-05ba-40fa-b697-aeed32e8d1c3","originalAuthorName":"艾地"},{"authorName":"吴化","id":"97b93dc4-d22b-4036-876f-f2d6bf1ccd08","originalAuthorName":"吴化"},{"authorName":"刘云旭","id":"fb622631-dae2-40b0-a4c8-78e5271cb3ac","originalAuthorName":"刘云旭"},{"authorName":"刘耀东","id":"febd223e-1091-448d-b6d6-1d0cac8c8cd8","originalAuthorName":"刘耀东"}],"doi":"","fpage":"67","id":"6a18954a-b227-409f-9acf-01f68f72e291","issue":"z1","journal":{"abbrevTitle":"CLRCLXB","coverImgSrc":"journal/img/cover/CLRCLXB.jpg","id":"15","issnPpub":"1009-6264","publisherId":"CLRCLXB","title":"材料热处理学报"},"keywords":[{"id":"06f464ca-e7bc-49f5-b295-3a4729e4a0b2","keyword":"高碳低合金钢","originalKeyword":"高碳低合金钢"},{"id":"1f5eed8a-35c3-4acd-990a-ca7669a08496","keyword":"贝氏体","originalKeyword":"贝氏体"},{"id":"cc2a4767-023c-4ce5-b642-edb50131f399","keyword":"等温淬火","originalKeyword":"等温淬火"},{"id":"26d1a661-4ca2-4457-afd1-f6f0e176425f","keyword":"组织","originalKeyword":"组织"},{"id":"49301bc6-eb12-4d81-af3f-0ccfdc22e192","keyword":"力学性能","originalKeyword":"力学性能"}],"language":"zh","publisherId":"jsrclxb2013z1014","title":"75Si2Mn1.5<span style=\"color:red\">CrB</span>铸钢等温淬火组织及力学性能","volume":"34","year":"2013"},{"abstractinfo":"为了研究沉积温度对涂层微结构与力学性能的影响,采用直流磁控溅射技术制备了<span style=\"color:red\">CrB</span>2涂层.通过XPS、XRD、SPM、SEM、HRTEM、纳米压痕仪和维氏压痕仪分别分析了涂层的成分、结构、微观形貌和力学性能.结果表明:在不同沉积温度下,<span style=\"color:red\">CrB</span>2涂层均由<span style=\"color:red\">CrB</span>2和少量Cr相组成.涂层具有致密的纳米柱状结构,其直径大约为7 nm,且沿着生长方向贯穿整个涂层截面.随沉积温度升高,涂层晶体取向由(101)和(001)的混合取向逐渐转变为(001)择优取向,涂层由纤维状结构转变为柱状晶结构,且柱状晶尺寸随沉积温度的增加逐渐细化,致密化程度增加.涂层的力学性能随沉积温度的升高而显著增加;当沉积温度达到400℃时,涂层具有最高硬度(50.7±2)GPa和最高弹性模量(513.6±10) GPa.微观结构和力学性能随沉积温度的演变归因于沉积原子运动的逐渐增强和结构的致密化.","authors":[{"authorName":"张树参","id":"4c6c39a5-a8d3-4e31-830d-0859c4f99a30","originalAuthorName":"张树参"},{"authorName":"李晓伟","id":"296f1c49-0bcb-49b5-8da4-5b12e6f00e1c","originalAuthorName":"李晓伟"},{"authorName":"王丽","id":"e18a9f27-a933-4a3d-b43d-743d76b65fb1","originalAuthorName":"王丽"},{"authorName":"张栋","id":"b1b5cd10-2263-4208-8d68-8a8ec1a89669","originalAuthorName":"张栋"},{"authorName":"柯培玲","id":"48a9ea3d-7c3b-4567-827b-9ddacb065c86","originalAuthorName":"柯培玲"},{"authorName":"李志勇","id":"3f6b6e92-488a-471e-974f-ca36c75ed1eb","originalAuthorName":"李志勇"},{"authorName":"汪爱英","id":"e2de21b4-4f99-4aa5-aabe-d935b8d594ce","originalAuthorName":"汪爱英"}],"doi":"10.11933/j.issn.1007-9289.2016.02.010","fpage":"69","id":"2cf7e890-9ac1-4faf-85ca-2e3ebc48ff2c","issue":"2","journal":{"abbrevTitle":"ZGBMGC","coverImgSrc":"journal/img/cover/ZGBMGC.jpg","id":"79","issnPpub":"1007-9289","publisherId":"ZGBMGC","title":"中国表面工程"},"keywords":[{"id":"4613231c-1aec-46df-97d8-ce4bf065d716","keyword":"沉积温度","originalKeyword":"沉积温度"},{"id":"43b5d9e9-b275-4e59-a1cf-9d3270fc3c0a","keyword":"<span style=\"color:red\">CrB</span>2涂层","originalKeyword":"CrB2涂层"},{"id":"72f28561-7f23-4b71-af2e-38fad3873c94","keyword":"微结构","originalKeyword":"微结构"},{"id":"29ac4ec6-ed0f-4dfa-97a8-ef4e61ada050","keyword":"硬度","originalKeyword":"硬度"},{"id":"882e9fd4-6a31-4069-b057-ba4f201c6755","keyword":"韧性","originalKeyword":"韧性"}],"language":"zh","publisherId":"zgbmgc201602010","title":"沉积温度对<span style=\"color:red\">CrB</span>2涂层结构与性能的影响","volume":"29","year":"2016"},{"abstractinfo":"The effect of crystallographic orientation on the fatigue-crack initiation and propagation in Ni3Al(<span style=\"color:red\">CrB</span>) single crystal was studied using a compact-tension specimen. Stage I crystallographic cracking and cleavage fracture were observed, Crystallographic cracking can occur on two or more {111} slip planes simultaneously. It was shown that the threshold stress intensity for crack initiation from the notch root exhibits a dependence on crystallographic orientation, In addition, an effect of orientation on microcracking behavior was also shown. The number of {111} planes intersecting with each other determines the different microscopic features on the cleavage fracture surface.","authors":[],"categoryName":"|","doi":"","fpage":"665","id":"a2279510-7533-4419-ba04-afcf774212dd","issue":"3","journal":{"abbrevTitle":"MAMTAMAMS","id":"3c00bd0a-9b64-4f42-89c3-0e640883446c","issnPpub":"1073-5623","publisherId":"MAMTAMAMS","title":"Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science"},"keywords":[{"id":"d634e986-c8ef-47bb-95e7-9550791798db","keyword":"dislocation-structures;elevated-temperatures;yield stress;orientation;superalloy;behavior;dependence;ambient;boron","originalKeyword":"dislocation-structures;elevated-temperatures;yield stress;orientation;superalloy;behavior;dependence;ambient;boron"}],"language":"en","publisherId":"1073-5623_1997_3_2","title":"Crystallographic study of fatigue cracking in Ni3Al(<span style=\"color:red\">CrB</span>) single crystal","volume":"28","year":"1997"},{"abstractinfo":"Nominal mode I and mixed mode I/II fatigue tests were carried out using the intermetallic compound Ni3Al(<span style=\"color:red\">CrB</span>) in the form of single crystal specimens. The effects of crystal orientation and load mode on fatigue crack initiation and growth were studied. The fracture surfaces of the single crystals were characterized by a cleavage-like appearance and cracking occurred either on a single {111} plane or on multiple {111} planes irrespective of whether mode I or mixed mode I/II loadings were applied. It was found that the crack initiation and growth behaviour are dependent on both crystal orientation and applied loading mode. The cracking behaviour predicted by three mixed mode fracture criteria (MTS, SED and G criteria) in polycrystalline materials under mixed mode loading can be understood from the present results on single crystals.","authors":[],"categoryName":"|","doi":"","fpage":"883","id":"3da3bf8d-c448-410c-b3da-e30b87030a44","issue":"6","journal":{"abbrevTitle":"F&FOEM&S","id":"04d17cf7-69ae-4c5c-a2e8-0caa835d6fbb","issnPpub":"8756-758X","publisherId":"F&FOEM&S","title":"Fatigue & Fracture of Engineering Materials & Structures"},"keywords":[{"id":"f13f57e4-6428-409a-a6bf-e8cbf6687955","keyword":"fatigue cracking;mixed mode loading;crystallographic orientation;resolved shear stress;Ni3Al(<span style=\"color:red\">CrB</span>) single crystals;growth;alloy","originalKeyword":"fatigue cracking;mixed mode loading;crystallographic orientation;resolved shear stress;Ni3Al(CrB) single crystals;growth;alloy"}],"language":"en","publisherId":"8756-758X_1997_6_1","title":"Mode I and mixed mode I/II fatigue cracking in Ni3Al(<span style=\"color:red\">CrB</span>) single crystals","volume":"20","year":"1997"},{"abstractinfo":"Fatigue crack propagation behavior of compact tension specimens of Ni3Al(<span style=\"color:red\">CrB</span>) single crystals has been examined at room temperature (RT) and elevated temperature. The results indicate that crystallographic cracking occurs on two or more {111} planes simultaneously at RT. With increasing temperature, the cube slip plane becomes active and plays an important role in determining the cracking path. Orientation and temperature dependence of the fatigue crack initiation threshold from the notch root exists. Similar to the flow stress, the crack initiation threshold increases with temperature, and the threshold for ((1) over bar 00)[010] orientation is higher than that for (110)[1(1) over bar0$]. Both orientation and temperature affect the Fatigue crack growth rates (FCGRs). The FCGRs of ((1) over bar 00)[010] are higher than that of (110)[1(1) over bar0$] in the Paris regime. A crystallographic relationship between the primary crack plane and the secondary slip plane ahead of the crack rip is suggested to explain the dependence of FCGRs on orientation. The oxidation embrittlement at the crack tip and the activated cube slip should be responsible for the acceleration of FCGRs in the Paris regime and the oxide-induced crack closure has a significant effect on the deceleration of FCGRs in the near-threshold regime at elevated temperatures. Both the relationship of orientations between octahedral slip planes and the applied load axis and the increasing activity of the cube slip plane with temperature determine the significant variation of fracture path with temperature. (C) 1997 Acta Metallurgica Inc.","authors":[],"categoryName":"|","doi":"","fpage":"1705","id":"1a44c2b6-ad45-4812-8046-25b592e6015a","issue":"4","journal":{"abbrevTitle":"AM","id":"473e1d60-024a-4fd2-8f59-9e3ede87721e","issnPpub":"1359-6454","publisherId":"AM","title":"Acta Materialia"},"keywords":[{"id":"58cdbc36-a0ac-4bc6-bfca-6093c088b307","keyword":"orientation dependence;dislocation-structures;yield stress;deformation;fracture;behavior;closure;alloys","originalKeyword":"orientation dependence;dislocation-structures;yield stress;deformation;fracture;behavior;closure;alloys"}],"language":"en","publisherId":"1359-6454_1997_4_1","title":"Fatigue crack growth of Ni3Al(<span style=\"color:red\">CrB</span>) single crystals at ambient and elevated temperatures","volume":"45","year":"1997"},{"abstractinfo":"","authors":[],"categoryName":"|","doi":"","fpage":"953","id":"f78b0546-c10b-45d3-ad44-8d35fc75702e","issue":"11","journal":{"abbrevTitle":"JOMSL","id":"c1646fa6-d86f-4eed-af0a-5f3fcd219026","issnPpub":"0261-8028","publisherId":"JOMSL","title":"Journal of Materials Science Letters"},"keywords":[{"id":"2fcd9549-33b6-463c-a51b-92dc7e602411","keyword":"orientation;alloys","originalKeyword":"orientation;alloys"}],"language":"en","publisherId":"0261-8028_1997_11_1","title":"Crystallographic cracking behaviour in intermetallic compound Ni3Al(<span style=\"color:red\">CrB</span>) single crystal under cyclic compression","volume":"16","year":"1997"}],"totalpage":7,"totalrecord":69}