Ti-6Al-4V合金在不同工艺条件下水淬后的组织演变(英文)
发布时间:2021-10-08 23:45
为了获得Ti-6A1-4V合金最佳的机械性能,重点在于了解在不同工艺条件下水淬后的微观结构演变。可使用热模拟机进行Ti-6A1-4V合金的热模拟。结果表明,试样经过固溶处理后可获得完全的马氏体组织。固溶后水淬导致硬度增加,这归因于α’和α"的存在。试样在850℃等温保温且进行水淬后形成层状结构,硬度进一步提高。850℃下经变形后水淬出现等轴晶,由于晶界的强化,维氏硬度(HV)达到最大值(5840 MPa)。试样在850℃变形后等温保持在600℃时,组织由α相,层状α/β和等轴晶粒组成。变形后的冷却及等温保温处理导致α相及晶粒尺寸增大,其尺寸范围在324~706 nm之间,导致硬度降低。
【文章来源】:稀有金属材料与工程. 2020,49(09)北大核心EISCICSCD
【文章页数】:7 页
【文章目录】:
1 Experiment
2 Results and Discussion
2.1 Hardness and stress-strain curve
2.1.1 Vickers hardness
2.1.2 Stress-strain curve
2.2 Microstructures of the specimens
2.2.1 Optical microscopy microstructure
2.2.2 SEM and TEM observation
2.2.3 XRD analysis
2.3 Microstructural evolution under different processing conditions
3 Conclusions
本文编号:3425208
【文章来源】:稀有金属材料与工程. 2020,49(09)北大核心EISCICSCD
【文章页数】:7 页
【文章目录】:
1 Experiment
2 Results and Discussion
2.1 Hardness and stress-strain curve
2.1.1 Vickers hardness
2.1.2 Stress-strain curve
2.2 Microstructures of the specimens
2.2.1 Optical microscopy microstructure
2.2.2 SEM and TEM observation
2.2.3 XRD analysis
2.3 Microstructural evolution under different processing conditions
3 Conclusions
本文编号:3425208
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