8090铝锂合金的氢脆敏感性研究  

Hydrogen Embrittlement Susceptibility of Aluminum Lithium Alloy

作　　者：袁劲松[1] 吴海峰[1] 秦熊浦[2] 

机构地区：[1]华东船舶工业学院材料工程系,镇江212003 [2]西北工业大学,西安710023

出　　处：《材料保护》1999年第12期29-30,共2页Materials Protection

摘　　要：采用M351测量系统测试了8090铝锂合金在3.5％NaCl溶液中的腐蚀行为，并用SSRT测试技术研究了阴极极化下合金的氢脆敏感性，结果表明：充氮介质和时效制度对合金的氢脆敏感性影响较大，强烈渗氢条件下，氢可能成为腐蚀断裂的主要因素．The poldrization curve of Al-Li alloy 8090 was measured by electrochemical measuring device M351, and the hydrogen embrittlement susceptibility of Al-Li alloy was evaluated with slow strain rate technique. The experimental results showed that the aging conditions and the penetrating medium had profound effects on the HES of Al-Li alloy. Hydrogen embrittlement could play a dominant role in corrosion cracking as the hydrogen heavily permeated into the materials.

关 键 词：氢脆 铝锂合金 SSRT 敏感性 腐蚀 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG146.263[金属学及工艺—金属材料]