共搜索到23112条信息，每页显示10条信息，共2312页。用时：0小时0分0秒335毫秒
......
Thermal Analysis of Precipitate Dissolution in Binary Al-Li Alloy姚大平,胡壮麒,李依依,张匀,师昌绪摘 要:<正> In this paper,the activation energy for precipi-tate dissolution in binary AI-Li alloy has been in-vestigated by considering precipitate dissolution inAl-Li alloy,continuously heated as a thermally ac-tivated process.The proposed calculation was car-ried out......
......
Al-Li alloy MAO Bai-ping1, YAN Xiao-dong2, SHEN Jian2 (1. State Key Laboratory of Nonferrous Metals and Processes, General Research Institute for Nonferrous Metals, Beijing 100088, China; 2. Nonferrous Metals Processing Division, General Research Institute for Nonferrous Metals, Beijing 100088, China) Abstract: 2197 Al-Li alloy was thermo-mechanically treated, and the precipitation and growth......
温度对Al-11.4%Li合金沉淀机制影响的微观相场模拟苗海川1,王永欣1,陈铮1,钟汉文1,孙立岩1(1.陕西省西安市西北工业大学 材料学院)摘 要:利用微观相场法模拟Al-11.4%Li合金时效过程中的微观组织.从模拟结果可以看出,该合金在383,423和493K下沉淀机制分别为失稳分解,非经典形核与失稳分解的混合机制和非经典形核长大.随温度的升高,新相颗粒逐渐规则,溶质原子的簇聚程度以及体系整体的有序化程度都在不断的降低.关键词:金属材料； Al-Li合金； 微观相场； 沉淀机制......
......
and study of microstructure and properties of a Al-Li alloy for aerospace and aviation[D]. Changsha: Central South University, 2007: 45-54. [6] 张 飞, 沈 健, 闫晓东, 孙建林, 陈 松, 白云峰, 周 华. 2099 合金的热变形行为及组织演化...]. The Chinese Journal of Nonferrous Metals, 2014, 24(7): 1694-1699. [7] ZHANG Fei, SHEN Jian, YAN Xiao-dong, SUN Jian-lin. Constitutive analysis to predict high-temperature flow stress in 2099 Al-Li alloy[J......
Effect of Rare Earth Elements on Anisotropy and Microstructure of Al-Li Alloy 2195 Sheets Liu Yufeng1,Geng Jiping1,Xu Yue1 (1.School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) Abstract:For the purpose of decreasing the applied limitation resulting from the anisotropic mechanical property of Al-Li alloy 2195, this study......
......
2099合金热变形加工图研究张飞1,2,孙建林2,沈健1,闫晓东1,陈松1,白云峰3,杨海虹4,蒋呐41. 北京有色金属研究总院2. 北京科技大学3. 鞍山钢铁集团公司4. 西南铝业(集团)有限责任公司摘 要:采用Gleeble-1500热模拟试验机对2099合金进行等温热压缩试验,研究了基于动态材料模型的加工图,分析了该合金在变形温度为300500℃,应变速率为0.00110 s-1范围内安全区和失稳区的组织特征,并对其热加工工艺进行优化.结果表明,2099合金的加工失稳区主要位于300420℃,0.0010.02 s-1和300500℃,0.56210 s-1范围内.失稳区组织出现了局部流变,局部剪切,局部流变+局部剪切等特征;安全区组织以动态回复,动态回复+动态再结晶为主要特征.合金热加工工艺优......
