不同的热处理工艺对inculoy合金组织与性能的影响毕业论文zrojf.doc

PAGE 摘 要本文主要研究了不同的热处理工艺对Inculoy925合金组织与性能的影响。在试验中，采用不同的固溶时间和温度，以及不同的时效时间和温度对Inculoy925合金进行了处理。处理后，磨制金相试样并将试样镶嵌，用光学显微镜观察其组织形貌并拍摄照片，再用扫描电镜和能谱仪对合金的组织和成分进行了观察和分析，并研究了其力学性能。通过实验可以得出，较高的固溶温度使得晶粒较大，屈服强度和抗拉强度下降；时效时间延长和时效温度升高，增大晶界碳化物和晶内强化相的数量，可以提高材料强度；晶界上的碳化物以 Ti、 Cr、Fe 的碳化物为主，基体成分以Ti、 Cr、Fe为主，基体是多种元素形成的固溶体γ相。关键词：Inculoy925合金，固溶和时效，性能 ABSTRACT This article studies the different effect of heat treatment process on microstructure and properties of Inculoy925 alloy. In testing, we used a solution of different time and temperature, as well as the aging time and temperature on Inculoy925 alloy. After the treatment, We grinded the specimen and sample mosaic, used an optical microscope observation of morphologies and took photos, scanned electron microscopes and spectrometer observation and analysed the organization and composition of the alloy, and studied on its mechanical properties. Experiments can be drawn some conclusions: Higher solution temperature made the grain larger，yield strength and tensile strength decreased; The aging time and aging temperature increased the grain boundary carbide and grain number of strengthening phase and improved the strength of the material; Carbides on the grain boundary carbides of Ti, Cr, Fe-based, the matrix composition is Ti, Cr and Fe-based, The matrix is a variety of elements in the formation of solid solution γ phase.Key words: Inculoy925 alloy, Solid solution and aging, Performance.目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc324966913 第一章 绪论 PAGEREF _Toc324966913 \h 3 HYPERLINK \l _Toc324966914 1.1引言 PAGEREF _Toc324966914 \h 3 HYPERLINK \l _Toc324966915 1.2高温合金发展趋势 PAGEREF _Toc324966915 \h 3 HYPERLINK \l _Toc324966916 1.3高温合金研究现状 PAGEREF _Toc324966916 \h 4 HYPERLINK \l _Toc324966917 1.4课题的主要研究内容 PAGEREF _Toc324966917 \h 4 HYPERLINK \l _Toc324966918 第二章 实验过程 PAGEREF _Toc324966918 \h 5 HYPERLINK \l _Toc324966919 2.1 实验原理 PAGEREF _Toc324966919 \h 5 HY