GH169合金的衍射定量相分析  

X-RAY DIFFRACTION QUANTITATIVE PHASE ANALYSIS OF SUPERALLOY GH169

作　　者：黄旭鸥 陈名浩 

出　　处：《钢铁研究学报》1993年第S1期81-88,共8页Journal of Iron and Steel Research

摘　　要：GH169合金是目前应用广泛的高温合金。由于其中γ′相和δ相的化学稳定性非常相近,不易用化学法定量分离,因此其定量分析一直是没有完全解决的难题。本文在用正交实验探讨GH169合金二次相最佳电解条件的基础上,将电解提取与X衍射择优取向校正多峰定量相分析法(MPQ法)相结合,应用开发的MPQ定量相分析软件,对GH169合金的γ′+γ″相和δ相进行了定量分析,得出热处理温度为650～800℃,时效时间为50～100 h(其中650℃为5～500 h)的相变规律,将其与金相分析结果相比较,两者相互吻合。Superalloy GH169 is widely applied. The γ' and δ phases play the important rolos in alloy GH169. So quantitative analysis of γ' and δ phases is of great significance. But γ' and δ phases can not be separated quantitatively by chemical method because of their similar chemical stabilities. In this paper, electrochemical and quantitative X-ray powder diffraction MPQ method are used in combination, and the developed software for correcting preferred orientation is also used.The analysis results of the phase transform of γ' +γ' and δ phase at 650-800 ℃ for 50-100 h ( 650 ℃ for 5-500 h ) are in agreement with the results of metallography analysis.

关 键 词：GH169 γ′相 相变规律 Δ相 电解提取 二次相 水溶液电解 金相实验 湿法化学分析 电解温度 

分 类 号：TF4-55[冶金工程—钢铁冶金]