期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Fe,Ni,Cr,Re对铝硅合金氩弧表面合金化层硬度和微观形态的影响 被引量:1
1
作者 陈冰泉 熊英 +1 位作者 侯华东 张志慧 《焊接技术》 2002年第2期16-18,共3页
采用氩弧表面合金化技术可利用氩弧将高熔点的Fe,Ni,Cr等直接熔入Al-Si合金表面,使母材表面获得较为均匀的合金化层。在母材表面熔入Fe,Ni,Cr,Re后,无论焊后、T6处理后还是250℃再时效后的硬度均大于相同热处理状态下的母材硬度,且合金... 采用氩弧表面合金化技术可利用氩弧将高熔点的Fe,Ni,Cr等直接熔入Al-Si合金表面,使母材表面获得较为均匀的合金化层。在母材表面熔入Fe,Ni,Cr,Re后,无论焊后、T6处理后还是250℃再时效后的硬度均大于相同热处理状态下的母材硬度,且合金化层中不出现粗大针片状铁相。对Al-Si合金进行氩弧表面合金化时不仅可以加入Fe,而且w(Fe)还可以高一些。 展开更多
关键词 氩弧 表面合金 铝硅合金硬度 微观形态 表面强化 焊接
下载PDF
Self tempering effect of near eutectic Al-Si casting with different wall thickness solidified and cooled in permanent die 被引量:1
2
作者 胡心平 谢玲 张娟 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第12期2576-2583,共8页
In order to study the self tempering effect on the solidification of Al-Si alloy, a setup was designed to conduct experiments. The characters of β phases in different thicknesses of Al-Si samples were investigated. T... In order to study the self tempering effect on the solidification of Al-Si alloy, a setup was designed to conduct experiments. The characters of β phases in different thicknesses of Al-Si samples were investigated. The results show that the size distributions of β phases obey the logarithmic normal distribution. The Brinell hardness tests were also carried out. The tested hardness results show that the hardness distribution of the casting cooled in water is evener than that cooled in air, and its averaged value is higher than that cooled in air. 展开更多
关键词 β phase Al-Si alloy self tempering effect Brinell hardness
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部