固体溶液处理对20CrNiMo/Incoloy 825复合材料微观结构和机械性能的影响
Jie Liu1,2, Qiang Li3, Hailian Gui1
1School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China.
Materials (Basel, Switzerland)
|November 27, 2024
概括
这项研究优化了对20CrNiMo/Incoloy 825复合钢的固体溶液处理. 在1050°C下进行1小时的最佳处理,使用油冷却,可以获得卓越的机械性能和接口完整性.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 复合材料 复合材料 复合材料
背景情况:
- 20CrNiMo/Incoloy 825复合材料为高压管道组件提供了增强的强度,硬度和耐腐蚀性.
- 对这些特定复合材料的热处理研究是有限的,需要进一步的研究.
研究的目的:
- 研究固体溶液处理对20CrNiMo/Incoloy 825复合材料的微观结构和性能的影响.
- 确定最佳的固体溶液处理参数,以达到理想的机械性能.
主要方法:
- 固体溶液处理在850至1100°C的温度下进行,保持时间为1,4和6小时.
- 进行了微结构分析,拉力测试,微硬度测量,骨折形态评估和剪切性质分析.
- 用各种温度和持久时间分析了界面元素扩散.
主要成果:
- 固体溶液处理温度显著影响了接口层和粒径;较高的温度增加了脱碳和奥氏体粒径.
- 拉力强度和延长率最初随溶液温度增加,然后降低,而硬度在20CrNiMo和Incoloy 825组件之间有所不同.
- 较高的处理温度促进了Cr,Ni和Fe原子的完全扩散,使矩阵变软并增加了剪切强度.
结论:
- 对20CrNiMo/Incoloy 825复合材料的最佳固体溶液处理是1050°C,使用油冷却1小时.
- 这种处理导致了良好的全面机械性能,包括增强的强度和接口完整性.
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