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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......
on the strength. ZHANG et al [21] and SHI et al [39] indicated that in both 2099 alloy with a Cu/Li ratio of 1.64 and Al-3Li-1.5Cu-0.15Zr cast alloy with a Cu/Li ratio of 0.5, the most important aging..., LIN Yi, XUE Xin-li, LUO Xiao-fu, ZHONG Jin. Effects of small addition of Sc on microstructure and properties of 2099 Al-Li alloy [J]. Journal of Central South University (Science and Technology), 2014......
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Reaction mechanism between oxide film on surface of Al-Li alloy and CsF-AlF3 flux XUE Song-bai(薛松柏), ZHANG Ling(张 玲), HAN Zong-jie(韩宗杰), HUANG Xiang(黄 翔) College of Materials Science...; Abstract: The composition of the oxide film on the surface of Al-Li alloy was measured......
Effect of aging on mechanical properties and localized corrosion behaviors of Al-Cu-Li alloy JIANG Na(蒋 呐)1, 2, LI Jin-feng(李劲风)1, ZHENG Zi-qiao(郑子樵)1, WEI Xiu-yu(魏修宇)1, LI Yan-fen(李艳芬)1 (1...: The effects of aging on mechanical properties, intergranular corrosion and exfoliation corrosion behaviors of a 2197 type Al-Li alloy were investigated, and the mechanisms were studied through microstructure......
2099合金挤压极限图的构建及验证张飞1,2,沈健1,闫晓东1,孙建林2,饶茂3,胡兴华31. 北京有色金属研究总院2. 北京科技大学3. 西南铝业(集团)有限责任公司摘 要:利用热压缩实验建立的本构模型结合挤压力极限方程和温升极限方程构建了2099合金的挤压极限图,给出了挤压极限曲线的临界方程,并对挤压极限图的正确性进行了验证.结果表明,随着初始锭温的升高,压力极限曲线所对应的挤压速度增加,而温升极限曲线所对应的挤压速度降低;2099合金最佳挤压温度为410~460℃,当挤压比λ分别为29和48时,挤压速度可分别在不超过10和6 mm/s内选取;在安全区进行挤压时,两种挤压比条件下均可得到表面无缺陷的型材;挤压温度升高到480℃,挤压速度在大于温升曲线临界值挤压时(λ=29),型材表面出现周期性裂纹......
-an. Microstructure and mechanical properties of 2099 Al-Li alloy extrusion materials[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(4): 964-969. [4] 杨守杰, 陆 正, 苏 彬, 戴圣龙, 刘伯操, 颜鸣皋. 铝锂合金研究进展[J]. 材料工程...): 547-553. [18] 林 毅, 郑子樵, 李世晨, 孔 祥, 韩 烨. 2099铝锂合金微观组织及性能[J]. 中国有色金属学报, 2013, 23(7): 1848-1854. LIN Yi, ZHENG Zi-qiao, LI Shi-chen, KONG Xiang, HAN Ye. Microstructures and properties of 2099 Al-Li alloy......
Microstructure and Properties of RS-P/M and I/M Al-Li Alloys匡建平,袁冠森,朱晓东,刘援』,赵卓雍,张少明摘 要:<正> The Al-Li alloy powder was prepared by argon atomization.It was canned in an aluminum containerand then the compact powder billet and I/M Al-Li ingot were extruded into Φ17 mm at 450°C with anarea reduction of 34:1.Compared the tensile properties between RS......
Influence of Electric Field on Mechanical Properties of Al-Li Alloy Containing Cerium and Electronic Mechanism 王西宁1,刘兵1,王永欣1,陈铮1 (1.Department of Material Science and Engineering, Northwestern Polytechnical University,) Abstract:The effect of electric field on the mechanical properties and microstructure of Al-Li alloy containing Ce was investigated, and mechanism was discussed......
Trans. Nonferrous Met. Soc. China 31(2021) 1189-1204 Effects of microstructure on tensile properties of AA2050-T84 Al-Li alloy Ding-ding LU1, Jin-feng LI1, Hong NING1, Peng-cheng MA2,Yong-lai CHEN2... University, Yinchuan 750021, China Received 27 May 2020; accepted 8 February 2021 Abstract: The effect of microstructure evolution on the tensile properties of 2050 Al-Li alloy thick plate aged at 150 ......
