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University), Changsha 410083, China)Abstract:The elevated-temperature mechanical properties and thermal stability of Al-Cu-Mg-Ag heat-resistant alloy were studied by tensile test, transmission electron...Elevated-temperature mechanical properties and thermal stability of Al-Cu-Mg-Ag heat-resistant alloySONG Yan-fang(宋艳芳)1, PAN Qing-lin(潘清林)1, 2, WANG Ying(王迎)1, LI Chen(李晨)1, FENG Lei(丰雷)1(1. School......
9Cr-2W耐热合金高温变形机制研究孙述利,何文武,张敏刚,柴跃生太原科技大学材料科学与工程学院摘 要:对9Cr-2W耐热合金进行了热变形温度900~1300℃和应变速率0.005~5.000 s-1条件下热压缩模拟实验,分析该合金热变形应力应变曲线,热变形组织演变,并测试1150和1300℃下的热变形织构.结果表明,9Cr-2W耐热合金热变形软化方式主要与温度有关,在应变速率0.500 s-1时,900~1050℃出现明显加工硬化,为动态回复型;1100~1200℃动态再结晶新晶粒沿原晶界分布,为不连续动态再结晶型;1250~1300℃沿原晶界出现锯齿形,为几何动态再结晶型.同时,应变速率对热变形软化方式也有一定的影响,随着应变速率的提高,发生不连续动态再结晶温度范围变宽,细化晶粒效果明显.结合......
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, Changsha 410083, China) Abstract: The behavior of the flow stress and the deformation microstructure of heat-resistant aluminum alloy Al-Cu-Mg-Ag during hot compression deformation were studied by thermal... recrystallization. Key words: Al-Cu-Mg-Ag alloy; heat-resistant aluminum alloy; hot compression deformation; flow stress ......
High-temperature oxidation behavior of 9Cr-5Si-3Al ferritic heat-resistant steelJun-jun Yan,Xue-fei Huang,Wei-gang HuangCollege of Materials Science and Engineering,Sichuan University摘 要:To improve the oxidation properties of ferritic heat-resistant steels,an Al-bearing 9Cr-5Si-3Al ferritic heat-resistant steel was designed.We then conducted cyclic......
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