云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(51135007)

国家自然科学基金(51135007): 作品数：67被引量：256H指数：11; 导出分析报告; 相关作者：李永堂齐会萍秦芳诚付建华闫红红更多>>; 相关机构：太原科技大学武汉理工大学西北工业大学中国重型机械研究院更多>>; 相关期刊：《Chinese Journal of Mechanical Engineering》《航空学报》《塑性工程学报》《材料热处理学报》更多>>; 相关主题：环件辗扩数值模拟42CRMO钢力学性能更多>>; 相关领域：金属学及工艺一般工业技术机械工程航空宇航科学技术更多>>

Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe被引量：3: 《Chinese Journal of Mechanical Engineering》2019年第1期113-126,共14页Lu Jia Yongtang Li Tianjing Hui Yang Zhang; Supported by National Natural Science Foundation of China(Grant Nos.51675361,51135007);Shanxi Scholarship Council of China(Grant Nos.2015-086,2016-096);Shanxi Provincial Key Research and Development Program of China(Grant No.03012015004); Compact hot extrusion(CHE) process of heavy caliber thick-wall pipe is a new material-saving production process. In order to reveal the optimum hot extrusion parameters in CHE process, the e ects of the extrusion para...; 关键词：HEAVY CALIBER thick-wall pipe COMPACT hot extrusion process MICROSTRUCTURAL evolution Numerical simulation Average grain size

A novel unified model predicting flow stress and grain size evolutions during hot working of non-uniform as-cast 42CrMo billets被引量：11: 《Chinese Journal of Aeronautics》2019年第2期531-545,共15页Lianggang GUO Fengqi WANG Pengliang ZHEN Xuechao LI Mei ZHAN; supported by the National Natural Science Foundation of China (No’s. 51575448 and 51135007); The cast preformed forming process(CPFP) is increasingly considered and applied in the metal forming industries due to its short process, low cost, and environmental friendliness, especially in the aerospace field. Ho...; 关键词：Cast preformed forming process Flow stress Grain size NON-UNIFORM AS-CAST 42CrMo BILLET Ring rolling Unified model

Combined Cellular Automaton Model for Dynamic Recrystallization Evolution of 42CrMo Cast Steel: 《Chinese Journal of Mechanical Engineering》2018年第5期80-90,共11页Yi-Na Guo Yong-Tang Li Wen-Yan Tian Hui-Ping Qi Hong-Hong Yan; Supported by Key Program of National Natural Science Foundation of China(Grant No.51135007);National Natural Science Foundation of China(Grant Nos.51575371,61301250);Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi Province of China(Grant No.[2015]3); The dynamic recrystallization(DRX) simulation performance largely depends on simulated grain topological struc?tures. However, currently solutions used di erent models for describing two?dimensional(2 D) and three?dim...; 关键词：42CrMo cast steel Dynamic recrystallization Cellular automaton Grain topology Independent component analysis

耐热合金钢P91热变形过程静态及亚动态再结晶行为被引量：11: 《机械工程学报》2017年第8期58-67,共10页贾璐李永堂李振晓; 山西省回国留学人员科研(2015-086);国家自然科学基金(51135007,51675361)资助项目; 利用单道次、双道次热压缩试验研究铸态P91合金钢在热变形后的动态、静态、亚动态再结晶行为,探索不同变形温度、应变速率、变形量对静态、亚动态再结晶的影响并建立静态、亚动态再结晶动力学方程。研究得出:热变形结束后,静态再结晶率...; 关键词：耐热合金钢热变形静态再结晶亚动态再结晶真应变大口径厚壁管

Advances in Compact Manufacturing for Shape and Performance Controllability of Large-scale Components-A Review被引量：4: 《Chinese Journal of Mechanical Engineering》2017年第1期7-21,共15页QIN Fangcheng LI Yongtang QI Huiping JU Li; Supported by National Natural Science Foundation of China(Grant Nos.51675361,51575371);Key Program of National Natural Science Foundation of China(Grant No.51135007);Key Research Project of Shanxi Province(Grant No.03012015004); Research on compact manufacturing technology for shape and performance controllability of metallic components can reanze the simplification and high-reliability of manufacturing process on the premise of satisfying th...; 关键词：compact manufacturing shape and performance controllability HIGH-PERFORMANCE ring parts thick-walled pipes

Hot deformation behavior and constitutive modeling of Q345E alloy steel under hot compression被引量：6: 《Journal of Central South University》2017年第2期284-295,共12页钱东升彭亚亚邓加东; Project(51135007)supported by the National Natural Science Foundation of China;Project(IRT13087)supported by the Innovative Research Team Development Program of Ministry of Education of China;Project(2012-86)supported by the High-end Talent Leading Program of Hubei Province,China;Project(2012-P08)supported by State Key Laboratory of Materials Processing and Die&Mould Technology,China; Q345E as one of typical low alloy steels is widely used in manufacturing basic components in many fields because of its eminent formability under elevated temperature. In this work, the deformation behavior of Q345E s...; 关键词：hot deformation behavior dynamic softening flow stress constitutive model

GCr15铸环热辗扩孔洞形状演变预测模型研究被引量：1: 《塑性工程学报》2017年第1期168-173,共6页钱东升姚摇郭俊; 国家自然科学基金资助项目(51135007);教育部创新团队发展计划项目(IRT13087);湖北省重大科技创新计划项目(2015AAA005); 环件铸辗复合成形是利用铸造环坯热辗扩成形环件的一种短流程成形新工艺。然而铸造环坯中存在的夹杂、缩松、缩孔等孔洞类缺陷能影响到热辗扩成形环件的最终质量。基于ABAQUS平台建立了GCr15铸环孔洞热辗扩三维热力耦合模型,通过热轧实...; 关键词：GCr15铸环铸环孔洞热辗扩预测模型

42CrMo钢轴承环件铸辗成形及淬回火组织性能研究被引量：9: 《机械工程学报》2017年第2期26-33,共8页秦芳诚齐会萍李永堂尉潇健; 国家自然科学基金重点(51135007);国家自然科学基金(51174140;51575371;51405325);山西省重点研发计划(03012015004);山西省研究生教育创新(2016BY136)资助项目; 42CrMo轴承环件是高铁动车和风力发电等装备制造领域关键承载、传动构件。基于环件铸辗复合成形技术开展42CrMo钢轴承环件离心铸造、热辗扩成形及淬回火试验研究,分析高温变速进给时辗扩成形环件的微观组织及力学性能,并对后续淬回火过...; 关键词：42CrMo轴承环件铸辗成形淬回火微观组织力学性能

基于铸坯的42CrMo环件辗扩成形工艺热力耦合分析被引量：3: 《材料热处理学报》2017年第1期171-177,共7页李永堂丁双凤付建华贾璐; 国家自然科学基金重点(51135007);国家自然科学基金(51174140);高等学校博士点基金优先发展计划(20111415130001); 以42CrMo钢为研究对象,对铸态坯料的环形零件辗扩成形过程进行了热力耦合分析。通过铸态42CrMo材料的热压缩实验,建立了两段式流变应力模型;对环形铸坯热辗扩成形过程进行了数值模拟,得出了基于铸坯的环件热辗扩成形过程等效应变、温度...; 关键词：环形零件短流程热力耦合分析 42CrMo 热辗扩

离心铸造辗扩成形42CrMo钢环件热处理后的组织与性能被引量：9: 《金属热处理》2016年第12期25-28,共4页尉潇健齐会萍李永堂秦芳诚李光; 国家自然科学基金重点(51135007);国家自然科学基金(51575371);山西省重点研发项目(03012015004);山西省研究生教育创新项目(2016BY136); 为实现42CrMo离心铸坯辗扩成形环件良好的综合力学性能,对热辗扩后成形环件采用840℃水淬及590℃回火调质处理,对其显微组织和力学性能进行检测,并对拉伸及冲击断口形貌观察。结果表明:辗扩后环件平均晶粒尺寸较小,中层晶粒相对内、外...; 关键词：42CrMo钢环件调质处理显微组织力学性能断裂机理

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