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摘自冶金部钢铁研究总院研究生赵明汉的硕士学位论文,导师:傅宏镇教授级高工。 本文利用性能检验,相分析、X光衍射、光学金相显微镜、扫描和透射电子显微镜、俄歇谱仪等手段,借助统计分析的方法对铁镍基沉淀强化高温合金GH150 800℃时效以后μ相与合金拉伸塑性之间的关系进行了仔细研究。结果表明:800℃时效后晶界μ相显著降低合金的室温拉伸塑性,室温延伸率与晶
Excerpt from the Ministry of Metallurgical Research Institute graduate Zhao Minghan master’s degree thesis, supervisor: Professor Fu Hongzhen senior engineer. In this paper, by means of performance test, phase analysis, X-ray diffraction, optical microscope, scanning and transmission electron microscopy, Auger spectroscopy and other means, with statistical analysis of the iron-nickel base precipitation hardening superalloy GH150 800 ℃ aging And the relationship between the tensile plasticity of the alloy has been carefully studied. The results show that the grain boundary μ phase significantly reduces the room temperature tensile ductility, elongation at room temperature and crystallization