【作者】 刘庆斌； 卢翠芬； 李冬玲；

【Author】 Liu Qingbin Lu Cuifen Li Dongling (National Analysis and Testing Centre for Iron and Steel,CISRI,Beijing 100081,China)

【机构】 钢铁研究总院分析测试研究所；

【摘要】 系统研究了一种高铬高温合金的物理化学相分析方法。对3种热处理制度下的试验合金中各析出相的结构、化学组成和含量,对γ′相+微量相、α-Cr 相+微量相的粒度分布进行了测定,揭示了该合金中析出相在不同状态下的变化规律。该合金的析出相为：γ′、α-Cr、M₂₃C₆、Ti（C,N）和 NbN 等,没有发现σ相析出。粒度分布结果表明：在800℃,100h 时效后,γ′相略有长大。更多还原

【Abstract】 The method for the physicochemical phase analysis of a superalloy with high content of chromium was studied.The construction,constituent content and size of the phases in the alloy were determined under three heat treatment conditions,and the changes of the phases in different states was also discovered.Those phases are found to be γ′,α-Cr,M₂₃C₆,Ti（C,N）, NbN,and the precipitation of or phase is not found.The analyse results for size distribution show that γ′ phase grow slightly in aging time of 100h at 800℃.更多还原