中南大学学报（自然科学版）2012，Vol.43Issue(4)：1276-1280,5.
淬火转移时间对1933铝合金拉伸性能、腐蚀性能及微观组织的影响
Influence of quench transfer time on tensile properties, corrosion properties and microstructure of 1933 aluminum alloy
摘要
Abstract
The influence of quench transfer time(5~90s) on the tensile properties, corrosion properties and microstructure of 1933 aluminum alloy forging was investigated by ambient tensile testing, intergranular and exfoliation corrosion exposure test, optical microscopy and transmission electron microscopy. The results show that the tensile properties and corrosion resistance decrease with the increase of quench transfer time. At 90 s, the drop percentages of ultimate strength, yield strength and elongation are about 7.5%, 9% and 20%, respectively, and the corrosion depth increases by 400%. Prolonged transfer time results in coarse η equilibrium phase in the grains, which causes the strengthening effect decrease after aging, and wider precipitates free zone, which makes elongation and corrosion resistance decrease. In order to obtain high properties, the transfer time for the alloy products should be controlled to keep the temperature just before quenching no lower than about 366 ℃.关键词
1933铝合金/淬火转移时间/拉伸性能/腐蚀性能/微观组织Key words
aluminum alloy 1933/ quench transfer time/ tensile properties/ corrosion resistance/ microstructure分类
通用工业技术引用本文复制引用
刘文军,刘胜胆,张新明,陈慧,钟奇鸣..淬火转移时间对1933铝合金拉伸性能、腐蚀性能及微观组织的影响[J].中南大学学报（自然科学版）,2012,43(4):1276-1280,5.基金项目
湖南省科技厅计划项目(2010GK3116) （2010GK3116）
中南大学自由探索计划资助(201012200238) （201012200238）
