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首页> 外文期刊>Journal of Materials Engineering and Performance >Effects of Cryogenic Forging and Anodization on the Mechanical Properties of AA 7075-T73 Aluminum Alloys
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Effects of Cryogenic Forging and Anodization on the Mechanical Properties of AA 7075-T73 Aluminum Alloys

机译：低温锻造和阳极氧化对AA 7075-T73铝合金力学性能的影响

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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 10(7) 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 (E (corr)) -0.80 to -0.61 V.
机译：在这项研究中，高强度AA7075合金样品在退火后进行了低温锻造，然后进行固溶和时效处理。低温锻造的7075-T73合金样品显示出等轴细晶粒，其基体中有大量细小析出物。与常规的7075-T73合金样品相比，低温锻造样品的拉伸强度降低了8-12％，疲劳强度提高，耐腐蚀性更高。裸露样品在10（7）个循环中测得的疲劳强度为225 MPa;在低温锻造样品中，强度增加到250 MPa。阳极氧化对裸露样品的耐蚀性的影响从（E（corr））-0.80提高到-0.61V。

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