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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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DD407/FGH95合金热等静压扩散连接反应层元素互扩展规律：II.模型验证及实验分析
DOI: 10.3724/SP.J.1037.2013.00106, PP. 1051-1060
Keywords: DD407/FGH95合金,组织形貌,扩散连接,热等静压
Abstract:
对DD407/FGH95合金系进行了1120℃/120MPa/3h,1170℃/120MPa/3h和1210℃/120MPa/3h3个工艺参数下的热等静压扩散连接实验,实验分析互扩散区元素分配规律与计算结果基本吻合,验证了利用DICTRA与Thermal－Calc软件结合计算扩散连接界面元素分布情况的准确性.进而给出了利用元素和相分布模拟结果对实验进行预测的依据,提出扩散连接温度应在1170－1200℃之间选择,可避免界面大γ′相出现.结合理论计算和实验分析,建立了粉末高温合金与单晶高温合金HIP扩散连接工艺选择原则.
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