材料期刊网

{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本实验重点针对一类铝镁合金6063板件研究了熔化焊接头的不均匀大变形力学行为.利用微冲压试验结合有限元反向迭代计算对焊接接头中从焊缝到母材的不均匀力学性能进行了表征,获得不同微区内材料真应力应变关系.分析了焊接接头不均匀大变形演化规律.在此基础上对该类铝合金薄壁管件的轴向压缩行为进行试验和数值计算,讨论了结构参数、载荷条件等对焊接结构变形和断裂行为的影响.建立了接头的有限元计算模型.","authors":[{"authorName":"乔及森","id":"fc7ecaf9-c79f-4087-8f95-0b90c6377ea7","originalAuthorName":"乔及森"},{"authorName":"陈剑虹","id":"2de63327-87c5-4be4-bc70-dcbbb2ec2630","originalAuthorName":"陈剑虹"},{"authorName":"朱亮","id":"9d922015-7584-4442-901f-00f683621a5f","originalAuthorName":"朱亮"}],"doi":"","fpage":"196","id":"dae4cca9-a41a-44a4-a7d3-fa50682be575","issue":"z3","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":"a20bdcc0-afee-4ef5-a1c5-41c102faae25","keyword":"焊接接头","originalKeyword":"焊接接头"},{"id":"7711f8e8-b691-4412-80d2-c1e047cee4d0","keyword":"不均匀大变形","originalKeyword":"不均匀大变形"},{"id":"d971104c-dbeb-411c-b2de-2c18b9ff05ec","keyword":"损伤","originalKeyword":"损伤"},{"id":"852ecb7c-9ae7-4c85-b20f-b0fcc2d41536","keyword":"力学性能","originalKeyword":"力学性能"},{"id":"d278c9f9-39dd-4341-9cb5-9e5d38e2fbf9","keyword":"有限元模拟","originalKeyword":"有限元模拟"}],"language":"zh","publisherId":"xyjsclygc2009z3043","title":"6063铝合金焊接接头及部件大变形力学行为研究","volume":"38","year":"2009"},{"abstractinfo":"粉末高温合金因合金化程度高、可锻性差,在锻造加工过程中容易发生不均匀变形和开裂.利用OM、SEM和TEM分析粉末高温合金易产生不均匀变形的组织原因,初步探索了退火处理对改善组织,提高可锻性的原因.结果表明:由于晶粒转动和第二相不均匀分布引起的微观不均匀变形是导致宏观不均匀变形的直接原因；经锻前多台阶热处理后,三晶粒交界处生成细小等轴晶层,第二相弥散分布均有利于粉末高温合金变形.","authors":[{"authorName":"雷应毅","id":"a0ceca40-ee24-4016-84d0-b0e8b49eb93a","originalAuthorName":"雷应毅"},{"authorName":"姚泽坤","id":"5709d477-571c-4bd0-bf5e-5e42f7da648b","originalAuthorName":"姚泽坤"},{"authorName":"宁永权","id":"c6b7b8d6-410e-48c7-aa30-424666f16b51","originalAuthorName":"宁永权"},{"authorName":"谢兴华","id":"68d7e6c4-cfe9-45bc-93c4-870587ccde16","originalAuthorName":"谢兴华"},{"authorName":"郭鸿镇","id":"d19d0223-40f0-47de-a80e-256f064340e4","originalAuthorName":"郭鸿镇"},{"authorName":"陶宇","id":"3cf905fb-8cd4-4ab9-bdef-d5aa0071ae6a","originalAuthorName":"陶宇"}],"doi":"","fpage":"1689","id":"be766331-12d4-4c3d-b065-4a269b38f46a","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":"4cbb5fb9-2d9b-4c62-932a-b37cf8a7a177","keyword":"粉末高温合金","originalKeyword":"粉末高温合金"},{"id":"bb75229d-87b1-485e-80fb-427ce681e997","keyword":"不均匀变形","originalKeyword":"不均匀变形"},{"id":"4f87c4f8-0d3a-40da-8cf8-6316dab6dee5","keyword":"晶粒转动","originalKeyword":"晶粒转动"},{"id":"2da81610-53bf-4c01-b12f-624974ed7078","keyword":"第二相","originalKeyword":"第二相"},{"id":"e6b5e452-4c41-483b-a925-66837f1742bb","keyword":"退火","originalKeyword":"退火"}],"language":"zh","publisherId":"xyjsclygc201209039","title":"热处理对粉末高温合金不均匀变形的改善作用","volume":"41","year":"2012"},{"abstractinfo":"采用等温压缩试验研究了一种Al-Li-Cu-Mg-Zr合金高温塑性变形过程中的不均匀变形现象.压缩变形时的不均匀变形程度随变形温度的升高而增大,随Z参数的增大而减小.其直接原因是样品和压头间的接触摩擦条件随温度升高和Z值的降低而恶化,并导致样品出现腰鼓和侧翻等不均匀变化现象.合金压缩时的温度分布不均也是导致出现不均匀变形的原因之一.","authors":[{"authorName":"王志强","id":"ebe81c8e-22ed-41c0-a766-4a2e6ef1fa19","originalAuthorName":"王志强"},{"authorName":"沈健","id":"aef14341-d4f2-41b0-9da9-2427afd10aea","originalAuthorName":"沈健"},{"authorName":"张新明","id":"dcf4bf79-7665-4685-8664-33687f90c99c","originalAuthorName":"张新明"}],"doi":"10.3969/j.issn.0258-7076.1999.06.015","fpage":"466","id":"48b67f85-a806-4180-a0a0-488c0f823940","issue":"6","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"c38f13ab-b372-4c30-8a85-b6c64766ef67","keyword":"压缩","originalKeyword":"压缩"},{"id":"3c5f308a-9cb6-4089-b770-47c9457f5a87","keyword":"应力","originalKeyword":"应力"},{"id":"9c3fecd3-5855-4ea1-91b2-e28f1e43ba9d","keyword":"腰鼓","originalKeyword":"腰鼓"},{"id":"6b3bb925-5f44-4ece-b4f2-1a9bf0c8d063","keyword":"摩擦","originalKeyword":"摩擦"}],"language":"zh","publisherId":"xyjs199906015","title":"Al-Li合金热压缩时的不均匀变形现象","volume":"23","year":"1999"},{"abstractinfo":"揭示了Ti-5Al-5Mo-5V-1 Fe-1 Cr合金在等温压缩过程中出现的组织不均匀现象.首先使用真空自耗炉制备出合金铸锭,而后进行热加工和热处理,使用热处理后的材料车削成圆柱形试样进行等温压缩试验,试样端面没有进行打磨、抛光处理,结果出现了严重的组织不均匀,在试样内部发现了轴对称分布的局部大变形区,这将增加材料受力时起裂的几率.并就该组织现象展开了研究.","authors":[{"authorName":"孙曙宇","id":"6e413fef-4006-49b0-86c8-f30fb1e1786c","originalAuthorName":"孙曙宇"},{"authorName":"吕维洁","id":"9d40bdb8-ec81-419b-967b-51ab8fe9bc2a","originalAuthorName":"吕维洁"}],"doi":"","fpage":"1545","id":"585a9901-2756-4b85-9ff9-807577d83b52","issue":"6","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"4ca032b4-dcbf-48de-b96b-d554325a6156","keyword":"TC18钛合金","originalKeyword":"TC18钛合金"},{"id":"60827664-f71d-41bd-8f40-937c2a8cda5a","keyword":"等温压缩","originalKeyword":"等温压缩"},{"id":"718d8a07-c666-4cc7-aaf8-837be144107c","keyword":"组织不均匀","originalKeyword":"组织不均匀"}],"language":"zh","publisherId":"xyjsclygc201606033","title":"TC18钛合金在热变形过程中的组织不均匀现象","volume":"45","year":"2016"},{"abstractinfo":"研究了消除DD8单晶合金的变形不均匀性的方法和机理，发现增加750℃/24h的低温时效处理后，可以消除DD8单晶高温合金中的拉伸变形不均匀现象，同时合金的屈服强度得到提高。观察表明，低温时效能阻止基体通道中应力诱导下小γ′粒子的不均匀析出，保证滑移变形沿试样均匀分布。","authors":[{"authorName":"刘金来","id":"a1d43701-d477-41e4-8bac-bffc57965ef3","originalAuthorName":"刘金来"},{"authorName":"张静华","id":"76030cc7-889e-4fa5-aa99-0a1c85a72cb2","originalAuthorName":"张静华"},{"authorName":"金涛","id":"07d23ba2-66c6-4f23-b58f-886b28286492","originalAuthorName":"金涛"},{"authorName":"胡壮麒","id":"e76ddec3-54aa-4fef-ad30-57d69333e039","originalAuthorName":"胡壮麒"}],"doi":"10.3969/j.issn.1001-4381.2001.02.004","fpage":"15","id":"2a75a4b9-9ea5-4a00-9c88-81569719fefb","issue":"2","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"953e3129-99da-4ffe-820d-859e11026ae6","keyword":"变形不均匀性","originalKeyword":"变形不均匀性"},{"id":"dc6b3a16-0d0d-477c-aac1-8d9150d46361","keyword":"时效","originalKeyword":"时效"},{"id":"925998cb-69ee-4570-b842-be5a73785581","keyword":"单晶高温合金","originalKeyword":"单晶高温合金"}],"language":"zh","publisherId":"clgc200102004","title":"低温时效法消除DD8单晶高温合金的拉伸变形不均匀性","volume":"","year":"2001"},{"abstractinfo":"针对攀钢热轧机组采用立辊调宽的特点,利用MSC.Marc有限元分析软件对板坯在立辊及水平辊轧制过程中的不均匀变形行为进行了离线模拟解析,分析了轧制工艺条件对轧后中间坯头尾形状尺寸及宽度的影响规律.模拟结果与实测值能较好地吻合.这对热轧寻求降低切损、提高成材率的措施具有一定的指导意义.","authors":[{"authorName":"郭太雄","id":"53ebe4cf-aa4f-4abb-b4b7-505c7dc202ea","originalAuthorName":"郭太雄"},{"authorName":"龙晋明","id":"f12ae3be-caf1-455b-b7cf-d11c8419cd18","originalAuthorName":"龙晋明"},{"authorName":"郑之旺","id":"86974857-5939-4711-a018-81165d951e83","originalAuthorName":"郑之旺"}],"doi":"10.3969/j.issn.1004-7638.2006.03.004","fpage":"14","id":"f335a4d7-bc30-4acb-b9c8-dbef96dd9854","issue":"3","journal":{"abbrevTitle":"GTFT","coverImgSrc":"journal/img/cover/gtft1.jpg","id":"28","issnPpub":"1004-7638","publisherId":"GTFT","title":"钢铁钒钛"},"keywords":[{"id":"49b3bf3d-658b-4d20-937b-ed2f605c71c6","keyword":"热轧带钢","originalKeyword":"热轧带钢"},{"id":"84320a41-ce88-47da-9f4e-42763f35c0d3","keyword":"有限元","originalKeyword":"有限元"},{"id":"8996eb0c-4227-4ec5-99d2-9f35f58955ee","keyword":"数值模拟","originalKeyword":"数值模拟"},{"id":"7ae6275b-633d-4910-a465-b2cfe039af67","keyword":"立辊调宽","originalKeyword":"立辊调宽"},{"id":"855e8011-dd79-46a1-8736-b031e379ff1e","keyword":"变形规律","originalKeyword":"变形规律"}],"language":"zh","publisherId":"gtft200603004","title":"板带粗轧不均匀变形行为的数值解析","volume":"27","year":"2006"},{"abstractinfo":"采用有限元方法对AISI 304钢经1100℃,0.1,1,10s-1的热压变形过程进行了数值模拟,分析了变形试样上等效应变的分布情况,确定了实际变形条件与试验设定条件之间的关系及合理的组织观察位置,研究了不均匀变形对奥氏体显微组织变化的影响.结果表明:不锈钢热压试样变形与组织不均匀性十分明显,心部的等效应变比实际设定值大40％左右,而端面值小于设定值的1/6,且应变速率对等效应变的分布情况影响不大；1100℃,1s-1,设定真应变为1(工程应变为63.2％)的试验条件下,变形试样心部组织发生完全动态再结晶,变形轴线端面位置组织与未变形组织形貌相似,且试样截面上硬度分布不均匀,沿变形轴线方向,硬度从端面到心部逐渐增大,端面硬度最小值为238HV,心部硬度最大值为251HV.","authors":[{"authorName":"时钟平","id":"f10b6632-0840-459f-bca2-c99fb7c1b9a1","originalAuthorName":"时钟平"},{"authorName":"吕知清","id":"786e0822-4e06-481d-b959-a6a369626351","originalAuthorName":"吕知清"},{"authorName":"吕栋","id":"1d158284-8ace-41ef-98ce-500cd22567b1","originalAuthorName":"吕栋"},{"authorName":"官英平","id":"9b35d73c-96e1-49b3-83ff-8635b8ec11dc","originalAuthorName":"官英平"},{"authorName":"傅万堂","id":"70798a04-242b-4a4e-89e7-25e7e4a0b445","originalAuthorName":"傅万堂"}],"doi":"","fpage":"42","id":"9c7c6e25-acf3-4b11-8be0-cb7da650a003","issue":"10","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"0423fed9-7459-4364-9fa3-e1f88b00abef","keyword":"热压变形","originalKeyword":"热压变形"},{"id":"6caadd5f-8a9f-43db-9dd5-2bcfc36a77f6","keyword":"不锈钢","originalKeyword":"不锈钢"},{"id":"3479804e-b761-4372-9b0c-3d7b2dafa474","keyword":"组织不均匀性","originalKeyword":"组织不均匀性"},{"id":"3b205e77-fe72-469b-ae16-a18c76e67bb2","keyword":"有限元分析","originalKeyword":"有限元分析"}],"language":"zh","publisherId":"gt201310008","title":"不锈钢热压变形组织不均匀性的有限元分析与试验","volume":"48","year":"2013"},{"abstractinfo":"我们提出一个模型,解释了磁通钉扎不均匀超导体的历史效应.钉扎不同由不同的临界电流密度jc来表征.基于这种模型以及磁通扩散方程,数值计算表明不均匀超导体的V-I输运特性曲线具有明显的历史效应,即升降电流时电压具有不可逆性,且这种不可逆性对电流扫描速度非常敏感而对磁场很不敏感.我们的银包套Bi2-xPbxSr2Ca2Cu3Oy电输运实验和文献的同样都显示出这种不可逆性,从而验证了我们的模型.","authors":[{"authorName":"刘洋","id":"b1aedb50-8019-4d36-9272-9ba23f3c0b1a","originalAuthorName":"刘洋"},{"authorName":"罗虹","id":"3cceed85-ebea-4ccd-9478-d1663e67c8e3","originalAuthorName":"罗虹"},{"authorName":"冷祥","id":"3875f84a-05ba-4d62-a6c6-32d453a36fc3","originalAuthorName":"冷祥"},{"authorName":"王智河","id":"21afd3e9-02cb-4c7f-931d-0e7b1117539d","originalAuthorName":"王智河"},{"authorName":"邱里","id":"4deb7a1a-c251-410e-84e7-f8c79065c178","originalAuthorName":"邱里"},{"authorName":"丁世英","id":"dd6468e2-b94f-4dfa-9d07-5eb6eb2af044","originalAuthorName":"丁世英"},{"authorName":"林良真","id":"ff4452d2-fde0-4367-ba11-bc7718d3e87d","originalAuthorName":"林良真"}],"doi":"10.3969/j.issn.1000-3258.2002.04.001","fpage":"241","id":"f8939745-659f-4897-8095-a70ecaf3d3d6","issue":"4","journal":{"abbrevTitle":"DWWLXB","coverImgSrc":"journal/img/cover/DWWLXB.jpg","id":"19","issnPpub":"1000-3258","publisherId":"DWWLXB","title":"低温物理学报 "},"keywords":[{"id":"d22c291b-e606-475b-a218-30aba9f3c62b","keyword":"","originalKeyword":""}],"language":"zh","publisherId":"dwwlxb200204001","title":"不均匀超导体中的历史效应","volume":"24","year":"2002"},{"abstractinfo":"用FEM方法对一种共析珠光体钢经700 ℃、0.1~10 s-1的热压缩变形过程进行了数值模拟，分析了变形后试样纵剖面上等效应变与应变速率的分布情况，确定了实际变形条件与试验设定条件比较一致的区域范围，并通过相应的显微组织变化进行了验证。结果表明，热压缩变形试样心部的等效应变与应变速率比设定值大40％左右，而端面值则为设定值的1/5~1/4；在从试样端面到中心距离的2/5-3/5区域内，实际应变及应变速率与试验设定的变形条件基本一致，且1/2处一致性最好。","authors":[{"authorName":"吕知清","id":"3c531e98-dc78-495e-8786-1fdafd5b63a4","originalAuthorName":"吕知清"},{"authorName":"赵军","id":"877c030c-9adc-4462-81ca-4d8b8a72ca83","originalAuthorName":"赵军"},{"authorName":"王振华","id":"b789d954-1236-4c9c-a25b-7937f53836fa","originalAuthorName":"王振华"},{"authorName":"任利国","id":"7c52c5f6-ee1f-4f9b-b750-eb11d5a0a590","originalAuthorName":"任利国"},{"authorName":"傅万堂","id":"5fa8cc19-f4e9-494c-80dd-54acbec09fbf","originalAuthorName":"傅万堂"}],"categoryName":"|","doi":"","fpage":"53","id":"201250b8-27ac-457e-9cdc-2f9de5a5e37f","issue":"12","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"3f5485b5-7cae-45ff-a6fa-2e7a78f71818","keyword":"热压缩;变形不均匀性;有限元分析;显微组织","originalKeyword":"热压缩;变形不均匀性;有限元分析;显微组织"}],"language":"zh","publisherId":"0449-749X_2007_12_2","title":"热压缩变形不均匀性的有限元模拟与试验研究","volume":"42","year":"2007"},{"abstractinfo":"用FEM方法对一种共析珠光体钢经700℃、0.1～10 s-1的热压缩变形过程进行了数值模拟,分析了变形后试样纵剖面上等效应变与应变速率的分布情况,确定了实际变形条件与试验设定条件比较一致的区域范围,并通过相应的显微组织变化进行了验证.结果表明,热压缩变形试样心部的等效应变与应变速率比设定值大40%左右,而端面值则为设定值的1/5～1/4;在从试样端面到中心距离的2/5～3/5区域内,实际应变及应变速率与试验设定的变形条件基本一致,且1/2处一致性最好.","authors":[{"authorName":"吕知清","id":"ff2f0cd4-a0d0-451d-8977-9d7333d44fef","originalAuthorName":"吕知清"},{"authorName":"赵军","id":"f8744c1d-90e2-46d1-9e45-96a16b3d5754","originalAuthorName":"赵军"},{"authorName":"王振华","id":"379b7410-5fd3-43d7-b3ed-b6383bd1793e","originalAuthorName":"王振华"},{"authorName":"任利国","id":"9ec4a375-d299-44c7-b36e-66267fadddfe","originalAuthorName":"任利国"},{"authorName":"傅万堂","id":"ec59f3ed-a62b-48a8-8e3b-69d6ebd92181","originalAuthorName":"傅万堂"}],"doi":"","fpage":"53","id":"7f1bad81-7191-4e75-9bda-8cb582fe23c6","issue":"12","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"ce10f346-872d-4b62-8568-ab84a034d271","keyword":"热压缩","originalKeyword":"热压缩"},{"id":"3d5ac22b-c1d0-40ec-87d8-1b1c02f11978","keyword":"变形不均匀性","originalKeyword":"变形不均匀性"},{"id":"47c6f6b7-f840-441f-8517-6b0489f7f363","keyword":"有限元分析","originalKeyword":"有限元分析"},{"id":"77f5bb5a-a6f3-4ce0-995b-fb74be8764b7","keyword":"显微组织","originalKeyword":"显微组织"}],"language":"zh","publisherId":"gt200712013","title":"热压缩变形不均匀性的有限元模拟与试验研究","volume":"42","year":"2007"}],"totalpage":2742,"totalrecord":27412}