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Trans. Nonferrous Met. Soc. China 24(2014) 922-929 Effect of pouring and mold temperatures on hot tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys Hao HUANG, Peng-huai FU, Ying-xin WANG... on hot tearing susceptibility (HTS) of commercial AZ91D and newly developed Mg-3Nd-0.2Zn-Zr (mass fraction, %; NZ30K) magnesium alloys in gravity permanent mold casting condition. The results indicate......
重力铸造Mg-3Nd-0.2Zn-Zr镁合金高周疲劳行为的研究李智峰,李贞明,付彭怀,彭立明,王迎新上海交通大学摘 要:对重力金属型铸造(GPC)和重力砂型铸造(GSC)Mg-3Nd-0.2Zn-Zr(NZ30K)(质量分数,%)合金T6态的显微组织,室温拉伸性能和室温拉压疲劳性能(R=–1)进行对比研究.研究发现,GPC-NZ30K合金晶粒大体呈正态分布,平均晶粒较细小(60μm);GSC-NZ30K合金晶粒分布偏离正态分布,晶粒尺寸大小不均匀且平均晶粒较粗大(70μm).晶粒细小均匀的显微组织(GPC-NZ30K-T6合金)可以明显提高合金的室温拉伸性能,包括屈服强度(+6.6MPa),抗拉强度(+43MPa)和延伸率(+2.8%),但对于提高合金的室温拉压疲劳强度(+1.12MPa)作用不明显......
双级时效在铸造Mg-3Nd-0.2Zn-Zr(wt.%)镁合金中的应用(英文)岳海燕1,付彭怀2,胡斌3,李贞明4,王迎新2,彭立明2,Anil K.Sachdev51. 上海飞机制造有限公司2. 上海交通大学轻合金精密成型国家工程研究中心&金属基复合材料国家重点实验室3. 通用汽车中国科学研究院4. 苏州有色金属研究所5. 通用汽车研发中心摘 要:研究了常规双级时效处理工艺(先低温160℃,后高温200℃)和反双级时效处理工艺(先高温200℃,后低温160℃)对低压砂型铸造Mg-3Nd-0.2Zn-Zr(NZ30K)(wt.%)镁合金的硬度和室温拉伸性能的影响.结果表明,常规双级时效处理对提高NZ30K合金的屈服强度效果不明显,而反双级时效处理能明显提高NZ30K合金的屈服强度.经200℃×16h......
and Engineering A, 2008, 486(1-2): 183-192. [15] Li Z M, FU P H, PENG L M, WANG Y X, JIANG H Y, WU G H. Comparison of high cycle fatigue behaviors of Mg-3Nd-0.2Zn-Zr alloy prepared by different casting......
, WANG Ying-xin, PENG Li-ming, JIANG Hai-yan. Effect of pouring and mold temperatures on hot tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys [J]. Transactions of Nonferrous Metals Society......
on hot tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys [J]. Transactions of Nonferrous Metals Society of China, 2014, 24: 922-929. [8] ESKIN D G, SUYITNO, KATGERMAN L. Mechanical properties......
tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(4): 922-929. [13] WANG Zhi, LI Yi-zhou, WANG Feng, HUANG Yuan-ding, SONG......
tearing susceptibility of AZ91D and Mg-3Nd-0.2Zn-Zr Mg alloys[J]. Transactions of Nonferrous Metals Society of China, 2014, 24 (4): 922-929. [30] 李庆春. 铸件形成理论基础[M]. 北京: 机械工业出版社, 1982. LI Qing-chun......