摘要
主要研究了（沉淀化）退火温度对Ａｌ－７．０Ｍｇ合金板材的剥落腐蚀（层蚀）性能的影响规律，结合微观组织分析了Ａｌ－７．０Ｍｇ合金中β相分布状态与合金剥落腐蚀性能的关系，指出β相的沿晶沉淀网膜是导致铝镁合金剥落腐蚀的根本原因。
The effect of annealing tempreature on the exfoliation corrosion resistance for Al-7.0Mg alloy sheet is studied The correlation of exfoliation corrosion with the β phase distribution inside Al-7.0Mg alloy was analyzed by means of microstructrre observation The results show that the basical reason of exfoliation corrosion for Al-Mg alloys is the continuous precipitation of β phase along grain boundaries.
出处
《铝加工》
CAS
2001年第5期32-34,37,共4页
Aluminium Fabrication
关键词
退火工艺
剥落腐蚀
力学性能
铝合金
Al-Mg alloys,annealing process,exfoliation corrosion,mechanical properties
