An investigation of hydrogen-induced hardening in 7075-T6 aluminum alloy
An investigation of hydrogen-induced hardening in 7075-T6 aluminum alloy
复制标题
DOI：
10.1016/j.jallcom.2007.10.126
复制
发表时间：
2008-10
影响因子：
6.2
通讯作者：
A. El-Amoush
中科院分区：
文献类型：
--
作者：
A. El-Amoush
通过对不同阴极充电条件下充氢试件进行实验，研究了氢对7075-T6铝合金硬度的影响。硬度测量表明，氢的引入导致7075-T6铝合金表面硬化。硬化的严重程度随着阴极电流密度或充电时间的增加而增加。进一步充电增加了7075-T6铝合金硬化区域的深度。硬化富氢层的透射电子显微镜观察显示位错密度增加。充电后的老化可能会导致硬度完全或部分恢复，具体取决于材料所施加的充电条件。
The effect of hydrogen on the hardness of 7075-T6 aluminum alloy was investigated after experiments conducted on specimens that hydrogen charged under different cathodic charging conditions. Hardness measurements revealed that the introduction of hydrogen caused hardening on the surface of 7075-T6 aluminum alloy. The severity of the hardening increased with either cathodic current density or charging time. Further charging increased the depth of the hardened region of 7075-T6 aluminum alloy. Transmission electron microscopic observations of the hardened hydrogen-enriched layer revealed an increase in dislocation density. Aging after charging can result in either complete or partial recovery of hardness depending on the charging conditions applied to the material.