期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
用直流磁控溅射法对镍基合金微粒表面涂铬 被引量:1
1
作者 范洪远 李伟 +3 位作者 沈保罗 唐正华 向文欣 应诗浩 《新技术新工艺》 北大核心 2002年第9期41-42,共2页
研究了用直流磁控溅射技术在 80~ 1 40目的镍基合金微粒表面包覆 1 0μm左右的金属铬膜的方法 ,讨论了工艺的影响和膜的性能 ,指出利用直流磁控溅射技术可在镍基合金微粒表面获得均匀、完整的厚铬膜 。
关键词 镍基合金微粒 涂层 直流磁控溅射
下载PDF
Site occupation evolution of alloying elements in Ni_3 V phase during phase transformation in Ni_(75)Al_(4.2)V_(20.8)
2
作者 张明义 李志刚 +3 位作者 张金玲 张会占 陈铮 张嘉振 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第5期1599-1604,共6页
Based on the microscopic phase-field model, the correlation between site occupation evolution of alloying elements in Ni3V-DO22 phase and growth of Ni3Al-L12 phase was studied during the phase transformation of Ni75Al... Based on the microscopic phase-field model, the correlation between site occupation evolution of alloying elements in Ni3V-DO22 phase and growth of Ni3Al-L12 phase was studied during the phase transformation of Ni75Al4.2V20.8. The results demonstrate that the growth of L12 phase can be divided into two stages: at the early stage, the composition of alloying elements in DO22 phase almost remains unchanged; at the late stage, the compositions of Ni and Al decrease while V increases in DO22 phase. Part of alloying elements for L12 phase growth are supplied from the site occupation evolution of alloying elements on three kinds of sublattices in DO22 phase. Ni is mainly supplied from V sublattice, and part of Al is supplied from NiⅠ and V sites at the centre of DO22 phase. The excessive V from the decreasing DO22 phase migrates into the centre of DO22 phase and mainly occupies V and NiII sites. It is the site occupation evolution of antisite atoms and ternary additions in DO22 phase that controls the growth rate of L12 phase at the late stage. 展开更多
关键词 Ni75Al4.2V20.8 alloy grain growth phase transformation microscopic phase-field antisite defect
下载PDF
Site occupation evolution of alloying elements in L1_2 phase during phase transformation in Ni_(75)Al_(7.5)V_(17.5)
3
作者 张明义 刘富 +3 位作者 陈铮 郭红军 岳广全 杨坤 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第10期2439-2443,共5页
Correlation between site occupation evolution of alloying elements in L12 phase and growth of DO22 phase in Ni75Al7.5V17.5 was studied using microscopic phase field model. The results demonstrate that the growing proc... Correlation between site occupation evolution of alloying elements in L12 phase and growth of DO22 phase in Ni75Al7.5V17.5 was studied using microscopic phase field model. The results demonstrate that the growing process of DO22 phase can be divided into two stages. At the early stage, composition in the centre part of L12 phase almost remains unchanged, and the nucleation and growth of DO22 phase is controlled by the decrease of interface between L12 phases. At the late stage, part of V for growth of DO22 phase is supplied from the centre part of L12 phase and mainly comes from Al sublattice, the excess Ni spared from the decreasing L12 phase migrates into the centre part of L12 phase and occupies the Ni sublattices exclusively, while the excess Al mainly occupies the Al sublattice. At the late stage, the growth of DO22 phase is controlled by the evolution of antisite atoms and ternary additions in the centre part of L12 phase. 展开更多
关键词 nickel based superalloys Ni75Al7.5V17.5 alloy phase transformation micro-phase field grain growth antisite defect
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部