高氧强化的高强高塑Ti-Zr合金（英文）
发布时间：2023-02-26 06:32
通过粉末冶金和热加工方法制备氧含量为0.42%～0.54%(质量分数)的Ti-Zr合金。结果表明:Ti-Zr合金由具有相同α相结构的富Zr区和贫Zr区组成,富Zr区域的氧含量较高,且晶粒尺寸较小。Ti-Zr合金同时具有高强度(σs=700～900 MPa)和高的总伸长率(>20%),而氧的固溶强化是主要的强化机制。Zr由于与Ti具有高度结构相似性,对氧诱发Ti合金脆化的影响不大。因此,0.54%(质量分数)的高含量值仍处于韧性到脆性转变的临界氧含量范围内,不明显降低材料的延展性。
【文章页数】：10 页
【文章目录】：
1 Introduction
2 Experimental
2.1 Materials preparation
2.2 Mechanical tests
2.3 Microstructural observation
2.4 Oxygen measurements
3 Results
3.1 Phase structures
3.2 Microstructures
3.2.1 As-sintered and as-rolled states
3.2.2 Compositional analyses
3.2.3 EBSD characterization
3.2.4 Dislocation structures
3.3 Mechanical behavior
3.4 Fractography
4 Discussion
4.1 Evolution of microstructures
4.2 Effects of oxygen on strength and ductility
5 Conclusions
本文编号：3750012
【文章页数】：10 页
【文章目录】：
1 Introduction
2 Experimental
2.1 Materials preparation
2.2 Mechanical tests
2.3 Microstructural observation
2.4 Oxygen measurements
3 Results
3.1 Phase structures
3.2 Microstructures
3.2.1 As-sintered and as-rolled states
3.2.2 Compositional analyses
3.2.3 EBSD characterization
3.2.4 Dislocation structures
3.3 Mechanical behavior
3.4 Fractography
4 Discussion
4.1 Evolution of microstructures
4.2 Effects of oxygen on strength and ductility
5 Conclusions
本文编号：3750012
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