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Effects of solution heat treatment on corrosion resistance of 5083F Al alloy Seong-Jong KIM, Seok-Ki JANG Division of Marine Engineering, Mokpo Maritime University, Mokpo City, Jeonnam... suffer a little corrosion in the marine environment, when they run in high speed, and high flow rate, etc. Therefore, solution heat treatment was carried out to prevent corrosion. The optimal heat......
Characterization of phases in Mg-10Y-5Gd-2Zn-0.5Zr alloy processed by heat treatment WANG Qu-dong(王渠东)1, GAO Yan(高 岩)1, 2, YIN Dong-di(尹冬弟)1, CHEN Chang-jiang(陈长江)1 1. National Engineering..., XRD, SEM and EDS. The mechanisms of microstructure evolution were discussed. The results show that, after high temperature heat treatments, the Mg12ZnY phases still exist. During solution-treatment......
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Evolution of eutectic structures in Al-Zn-Mg-Cu allaoys during heat treatment FAN Xi-gang(樊喜刚)1, JIANG Da-ming(蒋大鸣)1, MENG Qing-chang(孟庆昌)1, ZHANG Bao-you(张宝友)1, WANG Tao(王 涛)2 1. Analysis...; Abstract: The evolution of the eutectic structures in the alloys with different copper contents during heat treatment was studied by scanning......
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7475铝合金大型锻件时效工艺研究董显娟,李红英摘 要:测定了7475铝合金双级时效及回归再时效(RRA)工艺状态下的常规拉伸性能和电导率,并通过标准三点弯和圆周切口圆柱试验测定各时效工艺的断裂韧性.从而研究双级时效和RRA工艺对常规力学性能,断裂韧性,电导率和微观组织的影响,结果发现回归再时效工艺并不适用于7475铝合金大型锻件的生产实践.关键词:7475铝合金;双级时效;回归再时效(RRA);断裂韧性;电导率;......
Low cycle fatigue improvement of powder metallurgy titanium alloy through thermomechanical treatment LIU Bin(刘 彬)1, LIU Yong(刘 咏)1, HE Xiao-yu(何小禹)1, TANG Hui-ping(汤慧萍)2, CHEN Li-fang(陈丽芳)1 1...; Abstract: A low-cost β type Ti-1.5Fe-6.8Mo-4.8Al-1.2Nd (mass fraction, %)(T12LCC) alloy was produced by blended elemental powder metallurgy(P/M) method and subsequent thermomechanical treatment......
(RRA). BARUCH and RAMAT [4] invented a heat treatment for AW-7075-T6 known as retrogression and re-ageing (RRA). RRA was claimed to substantially reduce the susceptibility of the alloy to stress... stages of the RRA treatment of an AW-7xxx alloy using atom probe tomography (APT) and small- angle X-ray scattering (SAXS) experimental techniques. They showed that the retrogression step causes a strong......