The effects of environment on surface pit formation in aluminium
The effects of environment on surface pit formation in aluminium
复制标题
环境对铝表面凹坑形成的影响
DOI：
10.1080/14786436608212639
复制
发表时间：
1966
影响因子：
1.6
通讯作者：
D. H. Polonis
中科院分区：
文献类型：
--
作者：
M. B. Kasen;R. Taggart;D. H. Polonis
用高温金相技术观察了不同环境条件下空位凝聚坑的形成和消失。这一现象已被证明与表面氧化密切相关。真空处理完全抑制了凹坑的形成。在Ar气氛下淬火，在铝表面形成大的空位凝结坑。循环过程中二次凹坑的形成与位错的出现点有一定的关系。在氩气中形成凹坑需要比在空气中更高的温度。
Abstract High temperature metallographic techniques have been used to observe the formation and disappearance of vacancy condensation pits under a variety of environmental conditions. The phenomenon has been shown to bear a close relationship to surface oxidation. Treatment in vacuo completely inhibits pit formation. Large vacancy condensation pits are formed on aluminium by quenching under an argon atmosphere. The formation of secondary pits during repeated cycling suggests some relationship with the points of emergence of dislocations. Higher temperatures are required to form the pits under argon than in air.