{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"通过长期时效、固溶+时效处理和蠕变性能测试,研究了处理工艺对热连轧Ti一6Al-4V合金蠕变行为的影响.结果表明,在400℃,575MPa条件下,热连轧态合金有较低的蠕变寿命,经长期时效和亚温固溶时效处理后,合金的蠕变寿命由70h分别提高到230h和548 h.热连轧态Ti-6Al-4V合金的组织结构由类条状α相和网状β相组成;经长期时效处理后,在α相中析出大量粒状α相;而经亚温固溶+时效处理后,合金中形成的高固溶度等轴α相和高体积分数的\"网篮\"组织,是使合金较大幅度提高蠕变寿命的主要原因.在蠕变期间,热连轧合金的变形机制是α相中发生位错滑移;而固溶+时效处理合金的主要蠕变机制是波浪状〈a+c〉位错发生锥面滑移.随蠕变进行,合金中α相内发生高密度位错的束集,及发生动态再结晶以细化晶粒,其中细小α相和\"网篮\"组织的共同作用,是使合金具有较高蠕变寿命和较好塑性的主要原因.","authors":[{"authorName":"田素贵","id":"865d7a4e-6a7e-4df2-a675-b7e4a998fa8c","originalAuthorName":"田素贵"},{"authorName":"包宪宇","id":"7fe46add-ad12-43c3-9e5c-bb310bdee3c1","originalAuthorName":"包宪宇"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"b7ada565-6865-4b50-9c13-15001518d877","originalAuthorName":"于慧臣"},{"authorName":"刘洋","id":"5e71285b-c310-4864-95bf-f8779a92f9d6","originalAuthorName":"刘洋"},{"authorName":"赵忠刚","id":"ca2f7730-023c-44cc-b9c5-c1d846edf5aa","originalAuthorName":"赵忠刚"},{"authorName":"陈礼清","id":"2fbad5fa-2d12-4378-a806-6e1690b20399","originalAuthorName":"陈礼清"},{"authorName":"刘相华","id":"7fc87606-2ae8-4816-83c3-ff81caba699c","originalAuthorName":"刘相华"}],"doi":"10.3969/j.issn.1005-5053.2011.1.003","fpage":"13","id":"46cb3b7a-0146-468b-a18f-f2d709000cda","issue":"1","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"95c38e76-5e32-4712-8b5f-c9871d74410c","keyword":"热连轧Ti-6Al-4V合金","originalKeyword":"热连轧Ti-6Al-4V合金"},{"id":"43039ebc-731b-4d14-a3c3-3c9f15ad7be3","keyword":"长期时效","originalKeyword":"长期时效"},{"id":"648182c5-0d50-4669-a71a-391f495ab3ee","keyword":"固溶时效处理","originalKeyword":"固溶时效处理"},{"id":"93568fb8-bda5-4b0a-b9f3-94fc9b7bcded","keyword":"组织结构","originalKeyword":"组织结构"},{"id":"8cda985c-63f2-43f2-a2a9-e10cd5e05fe9","keyword":"蠕变特征","originalKeyword":"蠕变特征"}],"language":"zh","publisherId":"hkclxb201101003","title":"热连轧Ti-6Al-4V合金的蠕变行为及影响因素","volume":"31","year":"2011"},{"abstractinfo":"通过对热连轧GH4169合金进行直接时效处理、蠕变性能测试和组织形貌观察,研究了直接时效对热连轧合金蠕变行为的影响.结果表明:直接时效可明显提高热连轧GH4169合金的蠕变抗力,在660℃/700MPa条件下,使合金的蠕变寿命由60h提高到126h,在试验的温度和应力范围内,测定出该合金在蠕变期间的激活能和应力指数分别为Qa=559.2kJ/mol和n=17.6.合金在热连轧期间的变形特征是孪晶和位错在孪晶内的双取向滑移,且有较小的晶粒尺寸;经直接时效后,合金中弥散析出的细小r\"相是有效提高合金蠕变寿命的主要原因.在蠕变期间,合金的变形特征是孪晶及位错在基体中滑移;蠕变后期,在与应力轴垂直的晶界处首先出现微裂纹,随蠕变进行,微裂纹沿晶界扩展并发生沿晶断裂.","authors":[{"authorName":"田素贵","id":"fa0f03f7-a0f5-489e-8ef9-3cc32f1e39ec","originalAuthorName":"田素贵"},{"authorName":"赵忠刚","id":"f55d8ed5-6f6c-4c95-8a32-8eeffd6e08b5","originalAuthorName":"赵忠刚"},{"authorName":"陈礼清","id":"bcfbc770-4217-4b06-a422-3babdc634b8e","originalAuthorName":"陈礼清"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"080ab320-d3b7-4f4a-91d6-d5ac5fdf1dc3","originalAuthorName":"于慧臣"},{"authorName":"刘洋","id":"0d11aebf-6f9a-4e09-9a80-1a4789a6dfe9","originalAuthorName":"刘洋"},{"authorName":"包宪宇","id":"8122ddb7-c29d-4798-a4fb-491ad9a2ce84","originalAuthorName":"包宪宇"},{"authorName":"刘湘华","id":"dd940291-fd65-46dc-bf7e-ea56e26d5c98","originalAuthorName":"刘湘华"}],"doi":"10.3969/j.issn.1005-5053.2010.5.003","fpage":"14","id":"c21e80fc-31aa-432b-9db1-74c021539fe4","issue":"5","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"c6fa0fe0-568b-42ef-b238-d4debf6d4445","keyword":"热连轧GH4169合金","originalKeyword":"热连轧GH4169合金"},{"id":"6a0ac025-d04f-43bb-b686-66802fc9e244","keyword":"直接时效处理","originalKeyword":"直接时效处理"},{"id":"a8e24424-1ece-4afd-9a86-2b6ac2fa9acf","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"72a4da5f-fe37-4e5c-a58c-377f4056d2f6","keyword":"变形机制","originalKeyword":"变形机制"}],"language":"zh","publisherId":"hkclxb201005003","title":"直接时效处理对热连轧GH4169合金蠕变行为的影响","volume":"30","year":"2010"},{"abstractinfo":"研究了热处理对GH141合金760℃拉伸及900℃/170MPa持久性能的影响及合金显微组织与高温力学性能之间的关系.结果表明,GH141合金的760℃屈服强度σ760 0.2与晶粒平均直径D之间仍符合Hall-Petch关系;γ′强化机制可用位错切绕转换模型描述;晶界碳化物的种类、数量和尺寸对合金的持久寿命影响显著;晶内强度与晶界强度的合理匹配也是获得高持久寿命的重要因素.","authors":[{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"1c0bd3e1-f43e-4cf4-aa7d-5154025e04a9","originalAuthorName":"于慧臣"},{"authorName":"谢世殊","id":"2744943d-6f3e-4da5-817c-83b4ba0db5f4","originalAuthorName":"谢世殊"},{"authorName":"赵光普","id":"792dec16-e402-4e75-a8be-9d88e92217a5","originalAuthorName":"赵光普"},{"authorName":"杨洪才","id":"cc94c6da-0cbd-4c87-9c60-31b8863536c3","originalAuthorName":"杨洪才"}],"doi":"10.3969/j.issn.1001-4381.2003.09.001","fpage":"3","id":"022575f2-9e36-4d49-ac22-0bed5c0d190e","issue":"9","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"c1b5c3e8-357a-48d3-94ec-6e4738c379ca","keyword":"高温合金","originalKeyword":"高温合金"},{"id":"18332fde-7bdf-4d82-b4ec-48e82460dd87","keyword":"热处理","originalKeyword":"热处理"},{"id":"c63a67b1-b726-45e5-862b-e2fa13503c4e","keyword":"高温拉伸","originalKeyword":"高温拉伸"},{"id":"1e250ffb-4aff-4523-9285-6daa3ec1d224","keyword":"高温持久","originalKeyword":"高温持久"}],"language":"zh","publisherId":"clgc200309001","title":"GH141合金的高温拉伸及持久性能","volume":"","year":"2003"},{"abstractinfo":"在1040℃,137MPa下对[011]取向镍基单晶合金进行蠕变曲线测定,采用SEM观察热处理及蠕变后样品不同晶面的组织形貌,研究了[011]取向镍基单晶合金在蠕变期间的组织演化特征,并分析了组织演化的规律及影响因素.结果表明:取向差为4°的[011]取向镍基单晶合金经完全热处理后,组织是立方γ’相以共格方式嵌镶在γ基体相中,并沿<100>取向规则排列；在拉伸蠕变期间,合金中γ'相转变成与[001]取向平行的纤维状筏形组织.由于施加拉伸载荷,使立方γ'相中的(100)晶面及γ基体相承受挤压力,可排斥较大半径的Al、Ta原子,而在(001)晶面产生较大的晶格扩张应变,可诱捕较大半径的Al、Ta原子,因而促使γ'相沿[001]取向定向生长成为纤维状筏形组织.在外加应力作用下,不同晶面γ'/γ两相界面的应变能密度变化是促使发生元素扩散和γ’相定向粗化的驱动力.","authors":[{"authorName":"田素贵","id":"5776fc5f-11e5-4618-ae91-314ffa33abce","originalAuthorName":"田素贵"},{"authorName":"于莉丽","id":"c5f8674b-3f87-4a7e-bb1c-6c7263da8602","originalAuthorName":"于莉丽"},{"authorName":"肖丽","id":"858174eb-a679-4dc4-8f0e-1b9ef166ab4b","originalAuthorName":"肖丽"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"e0c87f94-b936-4751-9f34-73f16110f9c4","originalAuthorName":"于慧臣"},{"authorName":"张姝","id":"d4eef79c-ee68-47c4-a5c2-8b188b7fcb68","originalAuthorName":"张姝"},{"authorName":"钱本江","id":"7bac2a29-fd5a-4bd9-a754-acc10bf7dc76","originalAuthorName":"钱本江"}],"doi":"","fpage":"1574","id":"0ae2fd16-0c28-4786-9dca-fde7d5b48682","issue":"9","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"ab1b9895-f5b3-4fab-a6a9-47509d62d80b","keyword":"镍基单晶合金","originalKeyword":"镍基单晶合金"},{"id":"5d7fa298-05bd-4216-9d74-69e0a14b767f","keyword":"[011]取向","originalKeyword":"[011]取向"},{"id":"f5bd39e0-9b98-4ebb-b530-c79d130835d1","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"50116034-8fff-445e-b5f3-cc8124d1d557","keyword":"γ’相定向粗化","originalKeyword":"γ’相定向粗化"},{"id":"76361ec3-2219-4e2f-851a-2fd7ebf1a8e1","keyword":"元素扩散","originalKeyword":"元素扩散"},{"id":"d171c2ae-65f4-40d2-92e6-a0876224d19a","keyword":"驱动力","originalKeyword":"驱动力"}],"language":"zh","publisherId":"xyjsclygc201109016","title":"一种[011]取向镍基单晶合金拉伸蠕变中的组织演化","volume":"40","year":"2011"},{"abstractinfo":"针对所研究的镍基定向凝固合金表面高温防护涂层的厚度远大于一般涂层的特点,提出一种简捷方便的新方法测量涂层的硬度和弹性模量,便于同时研究涂层表面和系统界面对测量结果的影响.并通过传统纳米压痕仪的测量结果,以及镀在另一种定向凝固合金表面的同一种涂层测量结果间的对比,验证了试验结果的正确性.","authors":[{"authorName":"贾大炜","id":"b43ed37a-3012-445b-a76b-4f9899f06212","originalAuthorName":"贾大炜"},{"authorName":"施惠基","id":"e2a723ac-a92b-496d-b64c-1b1d0f2a2594","originalAuthorName":"施惠基"},{"authorName":"钟斌","id":"9ee9d3ba-9ed9-41ea-92e2-0195268d01df","originalAuthorName":"钟斌"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"239bec0d-b868-48b4-9ec8-4f98995ca7d3","originalAuthorName":"于慧臣"},{"authorName":"牛莉莎","id":"6abeb43e-6e05-44d7-8124-3101bc0df184","originalAuthorName":"牛莉莎"}],"doi":"10.3969/j.issn.1005-5053.2007.03.017","fpage":"77","id":"1d5253c5-f35f-4292-b66f-b04c839d438f","issue":"3","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"56f370c6-cfa7-4840-9aca-05ff3214089d","keyword":"涂层","originalKeyword":"涂层"},{"id":"03ee046c-c350-46b4-88a0-49f955cace28","keyword":"硬度","originalKeyword":"硬度"},{"id":"e5f8b38d-ddbd-4723-8219-d65f6a469f27","keyword":"弹性模量","originalKeyword":"弹性模量"},{"id":"f68e0b62-609b-4d99-9486-397afbb53474","keyword":"新方法","originalKeyword":"新方法"}],"language":"zh","publisherId":"hkclxb200703017","title":"镍基定向凝固合金表面涂层力学参数测量","volume":"27","year":"2007"},{"abstractinfo":"研究了近片层Ti-45Al-8Nb-0.2W-0.2B-0.1Y合金在750和800℃时短时蠕变行为,并进行了扫描电镜原位观察.结果表明:在750℃蠕变时,合金具有稳定的蠕变特征,随应力提高,稳态蠕变阶段变短,其蠕变应力指数为7.5;在800℃蠕变时,低应力下具有明显的稳态蠕变阶段,其蠕变应力指数为4.0,而高应力下几乎没有稳态蠕变,直接进入加速蠕变.SEM原位观察表明,其蠕变损伤过程是微裂纹的形成、长大及相互连接;随温度升高,裂纹扩展和连接速度变快.","authors":[{"authorName":"余龙","id":"87e9413f-9303-4186-8577-470e0dbc32f8","originalAuthorName":"余龙"},{"authorName":"宋西平","id":"cd9d61c7-2ba5-44b7-946d-f345e8e562ac","originalAuthorName":"宋西平"},{"authorName":"张敏","id":"91e63731-dd0b-467a-a87a-eea61d285157","originalAuthorName":"张敏"},{"authorName":"林均品","id":"9d227ef0-390c-4eeb-85fd-636f28c65095","originalAuthorName":"林均品"},{"authorName":"焦泽辉","id":"f32d791e-3f62-4adf-bf13-9a621f0480e9","originalAuthorName":"焦泽辉"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"6edde145-56d2-40cb-8061-e2528bacccb7","originalAuthorName":"于慧臣"}],"doi":"","fpage":"881","id":"207094b9-c6ba-44e7-bf7e-38f85197b420","issue":"4","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"a71576c2-3f50-40d4-9ef8-f3b2988e3cb1","keyword":"TiAl","originalKeyword":"TiAl"},{"id":"06ed469f-dedf-4fea-8916-d82f40c9bc93","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"133c92e0-099b-49d0-9a8c-9f154f36bbdb","keyword":"应力指数","originalKeyword":"应力指数"},{"id":"59049b2e-44fa-47a0-b977-956e56903cfc","keyword":"原位观察","originalKeyword":"原位观察"}],"language":"zh","publisherId":"xyjsclygc201404023","title":"高铌TiAl合金蠕变变形的原位观察","volume":"43","year":"2014"},{"abstractinfo":"对DZ125定向凝固铸造镍基高温合金进行了三种相位和两种试样尺寸的热机械疲劳实验研究.实验结果表明:在热机械载荷下,试样表面和内部温度梯度以及蠕变和氧化损伤的存在,导致试样工作段直径影响热机械疲劳寿命.当应变水平较高(疲劳寿命较短)时工作段直径为φ8mm试样的疲劳寿命和工作段直径为φ6mm试样的疲劳寿命无明显差别.当应变水平较低(疲劳寿命较长)时工作段直径为φ8mm试样的疲劳寿命比工作段直径为φ6mm试样的疲劳寿命长.","authors":[{"authorName":"张国栋","id":"b08aed09-b2ea-4f62-90e7-73db6a017d30","originalAuthorName":"张国栋"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"1227d154-36ce-4eab-92b7-2178fff499fc","originalAuthorName":"于慧臣"},{"authorName":"何玉怀","id":"afef08dc-eb05-4e84-8c01-891ffd9db15a","originalAuthorName":"何玉怀"},{"authorName":"苏彬","id":"99b87d90-b1cd-4f46-90ff-c1c76442fda2","originalAuthorName":"苏彬"}],"doi":"10.3969/j.issn.1001-4381.2007.05.007","fpage":"28","id":"3a284228-703e-4461-a24b-620e41e27a8e","issue":"5","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"dad0d509-99a7-4ec5-b106-7fb8b7239d3f","keyword":"热机械疲劳","originalKeyword":"热机械疲劳"},{"id":"7751f42b-d912-4ca1-ac7d-77ff28acfac4","keyword":"尺寸","originalKeyword":"尺寸"},{"id":"dadae520-208f-49c6-b948-b8b45bc2c4bd","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"63d4bcf6-6136-48e2-90ba-7a35205cc0af","keyword":"氧化","originalKeyword":"氧化"},{"id":"b9764c5c-19cf-4608-a3ec-57d978f1d31f","keyword":"损伤","originalKeyword":"损伤"},{"id":"a8254001-2636-4b06-9db2-30da557e35be","keyword":"寿命","originalKeyword":"寿命"}],"language":"zh","publisherId":"clgc200705007","title":"试样尺寸对定向合金DZ125热机械疲劳寿命的影响","volume":"","year":"2007"},{"abstractinfo":"在980℃温度下,对不同取向镍基单晶高温合金DD6在不同低周疲劳条件下的循环变形行为进行了研究.结果表明:[001]取向的合金在高总应变幅下表现出循环硬化特征,在低总应变幅下表现为基本循环稳定;[011]和[001]取向合金具有大致相同的特征.应变速率会对合金的循环硬化曲线产生影响,在低应变速率的条件下,硬化曲线整体上是向下移动,循环应力峰值下降;施加的总应变幅越大,循环应力下降越明显;高应变速率使得两种取向合金在相同的总应变幅下硬化曲线的初始硬化速率上升,这种现象对于[111]取向的尤为明显.","authors":[{"authorName":"李影","id":"c2a43e2d-d1f4-4ef0-be50-57b08fbc3ed0","originalAuthorName":"李影"},{"authorName":"吴学仁","id":"0f055040-449b-461b-8f97-c4cfc9c8a063","originalAuthorName":"吴学仁"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"1832aa01-ebcd-4675-b685-3fcfd4a60773","originalAuthorName":"于慧臣"},{"authorName":"苏彬","id":"110a2d89-4997-4fce-b329-ca67e18d5859","originalAuthorName":"苏彬"},{"authorName":"张明","id":"805e8e77-a67e-4f38-a9ee-3ebe1b0e3ca0","originalAuthorName":"张明"}],"doi":"","fpage":"15","id":"553c330a-1372-474e-91eb-9f54b4c8eee6","issue":"2","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"6ebc88da-350e-4edc-9880-de45215af015","keyword":"镍基单晶高温合金","originalKeyword":"镍基单晶高温合金"},{"id":"34a05787-0e80-421b-8b20-58e61b7a1203","keyword":"循环变形","originalKeyword":"循环变形"},{"id":"d1dfbd13-1120-4ed0-ae4b-05002f2f9a37","keyword":"应变速率","originalKeyword":"应变速率"}],"language":"zh","publisherId":"jxgccl201402004","title":"不同取向镍基单晶高温合金在980℃下的低周循环变形行为","volume":"38","year":"2014"},{"abstractinfo":"通过对一种定向凝固合金进行不同温度的固溶处理、蠕变性能测试及组织形貌观察,研究了固溶温度对枝晶臂/间区域的成分偏析及持久性能的影响.结果表明:经1230℃固溶及时效处理后,合金在枝晶干/间区域存在明显的成分偏析和组织不均匀性,粗大γ’相存在于枝晶间区域,细小γ’相存在于枝晶干区域,碳化物呈条状分布在枝晶间区域.合金经1260℃固溶及时效处理后,可明显降低合金中元素的偏析程度,并消除了合金在枝晶间区域存在中的粗大γ’相,使高体积分数细小立方γ '相均匀分布在枝晶间和枝晶干区域,并有细小粒状碳化物沿晶界析出,抑制晶界滑移,因此,可大幅度改善合金的中温蠕变性能.合金在中温蠕变期间的变形特征是位错在基体中滑移和剪切γ’相,并在γ’/γ两相界面形成位错网.蠕变后期,由于沿与应力轴呈45°角的晶界承受载荷的最大剪切应力,故裂纹易于在与应力轴呈45 °角的倾斜晶界处萌生与扩展.","authors":[{"authorName":"田宁","id":"c5a1d390-3489-4d50-b998-08edc6d0728c","originalAuthorName":"田宁"},{"authorName":"田素贵","id":"5e0b5a84-7715-4cb0-88b7-8fdc65086698","originalAuthorName":"田素贵"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"0ffc8d67-0af3-4c38-b5d2-9d93a8fbec06","originalAuthorName":"于慧臣"},{"authorName":"孟宪林","id":"ba50f1f8-6152-4353-916e-cd259f75a712","originalAuthorName":"孟宪林"}],"doi":"","fpage":"86","id":"5a802f16-fab2-4330-9ffb-e3f65c07030c","issue":"7","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":"0307eaa7-ca37-4dda-8953-3176326c9365","keyword":"定向凝固镍基合金","originalKeyword":"定向凝固镍基合金"},{"id":"7be3495b-4860-4f7b-ba7b-b7accc58ec61","keyword":"固溶温度","originalKeyword":"固溶温度"},{"id":"38817b00-cd25-4388-9875-6821d39ef1d8","keyword":"组织结构","originalKeyword":"组织结构"},{"id":"f316db6c-21d4-4c6e-b01e-5cfb84cac935","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"82df04dc-d85b-452b-80a3-f547ae8213e1","keyword":"变形特征","originalKeyword":"变形特征"},{"id":"27c6abcc-ea9a-4270-9ba3-ef56544490fc","keyword":"蠕变损伤","originalKeyword":"蠕变损伤"}],"language":"zh","publisherId":"jsrclxb201407016","title":"固溶温度对一种定向凝固镍基合金中温蠕变性能的影响","volume":"35","year":"2014"},{"abstractinfo":"通过蠕变曲线的测定及微观组织形貌观察,研究[111]取向镍基单晶合金在高温低应力条件下的组织结构与蠕变行为.结果表明:经完全热处理后,[111]取向单晶合金的组织结构是立方y′相以共格方式嵌镶在y基体中,并沿<100>方向规则排列；在1 040-1 080℃、137～180 MPa的温度和应力范围内,该取向单晶合金表现出明显的温度和施加应力敏感性.蠕变期间,y′相沿与应力轴呈一定角度形成筏状组织,蠕变后期在近断口区域筏状y′相发生粗化和扭折.[111]取向单晶合金在蠕变期间的变形特征是位错在y基体通道中运动和剪切筏状y′相,由于形变量较大,较多位错切入筏状y′相后使其形成亚晶结构,其中,蠕变后期大量位错切入筏状y′相导致合金的蠕变抗力降低,是合金发生蠕变断裂的主要原因.","authors":[{"authorName":"苏勇","id":"dbcda46c-7cde-40aa-b4c6-a5e2a53ee3d9","originalAuthorName":"苏勇"},{"authorName":"田素贵","id":"b3055ce1-64cf-434a-b9b2-d24554d0fcbc","originalAuthorName":"田素贵"},{"authorName":"于莉丽","id":"e89da068-993d-4015-8ae4-07f88fa39dc3","originalAuthorName":"于莉丽"},{"authorName":"<span style=\"color:red\">于慧</span><span style=\"color:red\">臣</span>","id":"f94f6fb9-683c-4014-9fab-a628b49a28e6","originalAuthorName":"于慧臣"},{"authorName":"张姝","id":"b7ac814b-a303-4d6d-b70c-a332e1baee25","originalAuthorName":"张姝"},{"authorName":"钱本江","id":"f72ce6c2-b550-4a78-b450-d15839e73528","originalAuthorName":"钱本江"}],"doi":"","fpage":"1624","id":"6d13b461-0d24-4ad9-8f56-7eaff2490e40","issue":"6","journal":{"abbrevTitle":"ZGYSJSXB","coverImgSrc":"journal/img/cover/ZGYSJSXB.jpg","id":"88","issnPpub":"1004-0609","publisherId":"ZGYSJSXB","title":"中国有色金属学报"},"keywords":[{"id":"0b8efe7a-69f5-4a7c-84ee-f07d73b23c68","keyword":"单晶镍基合金","originalKeyword":"单晶镍基合金"},{"id":"b555459b-153d-42be-b54e-bb08a4726642","keyword":"[111]取向","originalKeyword":"[111]取向"},{"id":"356d467d-cf48-4cb5-8451-fb9c0b3756a3","keyword":"蠕变","originalKeyword":"蠕变"},{"id":"835d6912-3058-4ee4-8cae-c34d41c533cf","keyword":"组织演化","originalKeyword":"组织演化"},{"id":"c4ac961a-7a6c-4488-8ac8-3aa9573a0e03","keyword":"亚晶","originalKeyword":"亚晶"},{"id":"be8918e1-2938-4049-af84-151dbad66c48","keyword":"变形特征","originalKeyword":"变形特征"}],"language":"zh","publisherId":"zgysjsxb201206012","title":"[111]取向镍基单晶合金的组织结构与蠕变行为","volume":"22","year":"2012"}],"totalpage":5,"totalrecord":41}