Effects of Cryogenic Forging and Anodization on the Mechanical Properties of AA 7075-T73 Aluminum Alloys

被引：0
|
作者：
Teng-Shih Shih
Tien-Wei Liao
Wen-Nong Hsu
机构：
[1] National Central University,Department of Mechanical Engineering
来源：
Journal of Materials Engineering and Performance | 2016年 / 25卷
关键词：
7075-T73; anodization; cryogenic forging; precipitates;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, high-strength AA7075 alloy samples were cryogenically forged after annealing and then subjected to solution and aging treatments. The cryogenically forged 7075-T73 alloy samples displayed equiaxed fine grains associated with abundant fine precipitates in their matrix. Compared with conventional 7075-T73 alloy samples, the cryogenically forged samples exhibited an 8-12% reduction in tensile strength and an increased fatigue strength and higher corrosion resistance. The fatigue strength measured at 107 cycles was 225 MPa in the bare samples; the strength was increased to 250 MPa in the cryogenically forged samples. The effect of anodization on the corrosion resistance of the bare samples was improved from (Ecorr) −0.80 to −0.61 V.
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页码：1211 / 1218
页数：7
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