精品文档---下载后可任意编辑ZG1Cr18Ni10Nb 铸造合金的制备工艺及性能的开题报告摘要：高温合金是一种在高温、高压、强腐蚀条件下具有优异性能的材料，具有广泛的应用前景。本文以 ZG1Cr18Ni10Nb 铸造合金为讨论对象，对其制备工艺与性能进行了讨论。通过真空感应熔炼工艺，制备出 ZG1Cr18Ni10Nb 合金。利用 X 射线衍射仪和扫描电镜对合金的晶体结构与形貌进行了表征。结果表明，该合金由于添加了 Nb 元素，因此在晶体结构上形成了稳定的 NbC 化合物，有效地增强了合金的耐高温性能。通过恒温拉伸试验，讨论了该合金的力学性能随温度的变化规律。结果表明，该合金的屈服强度和延伸率均随温度升高而下降，但高温下的力学性能仍然较好，可以在高温条件下长时间稳定工作。本讨论对于深化了解 ZG1Cr18Ni10Nb 合金的制备工艺和性能，为其在高温环境下的应用提供了重要参考。关键词：ZG1Cr18Ni10Nb 合金；制备工艺；晶体结构；高温性能Abstract:High-temperature alloys are materials with excellent performance under high temperature, high pressure and strong corrosion conditions, which have a wide range of application prospects. In this paper, ZG1Cr18Ni10Nb casting alloy as the research object, the preparation process and performance were studied.ZG1Cr18Ni10Nb alloy was prepared by vacuum induction melting process. The crystal structure and morphology of the alloy were characterized by X-ray diffractometer and scanning electron microscope. The results show that due to the addition of Nb element, stable NbC compound is formed in the crystal structure of the alloy, which effectively enhances the high temperature resistance of the alloy.The mechanical properties of the alloy with temperature were studied by constant temperature tensile test. The results show that the yield strength and elongation of the alloy decrease with the increase of temperature, but the mechanical 精品文档---下载后可任意编辑properties of the alloy are still good at high temperature, and it can work stably for a long time under high temperature conditions.This study provides an important reference for in-depth understanding of the preparation process and performance of ZG1Cr18Ni10Nb alloy, and its application in high-temperature environment.Keywords: ZG1Cr18Ni10Nb alloy; preparation process; crystal structure; high temperature performance
