| L_(c9)合金晶界的微观结构影响应力腐蚀开裂的机理 |
| |
| 引用本文： | 曾梅光,刘新.L_(c9)合金晶界的微观结构影响应力腐蚀开裂的机理[J].东北大学学报(自然科学版),1989(1). |
| |
| 作者姓名： | 曾梅光 刘新 |
| |
| 作者单位： | 东北工学院金属物理教研室
(曾梅光)，东北工学院金属物理教研室(刘新) |
| |
| 摘 要： | 研究了L_(c9)合金晶界的微观结构参数与应力腐蚀开裂的关系,以及晶界成分偏析。结果表明:随着时效程度的增加,晶界上 Mg向 MgZn_2 转移,粒子长大,粒子间距增加,晶界上固溶 Mg减小,晶界捕获H的能力减弱,应力腐蚀敏感性下降。
|
| 关 键 词： | 晶界偏析 微观结构参数 应力腐蚀 |
Effect of Grain Boundary Microstructure on Stress Corrosion Cracking in L_(c9) Aluminium Alloy |
| |
| Zeng Meiguang,Liu Xin.Effect of Grain Boundary Microstructure on Stress Corrosion Cracking in L_(c9) Aluminium Alloy[J].Journal of Northeastern University(Natural Science),1989(1). |
| |
| Authors: | Zeng Meiguang Liu Xin |
| |
| Institution: | Zeng Meiguang;Liu Xin |
| |
| Abstract: | The stress corrosion cracking in L_(c9) alloy was investigated experimentallyin relation to the microstructure parameters and composition segregation of grainboundary. The results indicate that with increasing aging effect, Mgongrain boun-daries migrate to MgZn_2 with grains' growing up and spacing out. In this wayMg in solid solution on grain boundaries decreases and the ability of grainboundary to capture hydrogen is weakened,resulting in the reduction of stresscorrosion sensitivity. |
| |
| Keywords: | grain boundary segregation microstructure parameters stress corrosion |
| 本文献已被 CNKI 等数据库收录！ |
