热处理后TB18合金的微结构演变以及再结晶纹理对机械性能的影响
Wei Xiang1,2, Qineng Li1, Feng Zhang1
1College of Materials Science and Engineering, Hunan University, Changsha 410082, China.
Materials (Basel, Switzerland)
|June 27, 2024
概括
控制TB18合金中的热变形影响再结晶纹理和机械性能. 本研究表明,通过调整工业应用的造参数来定制合金性能.
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.
- 合金是一种合金.
背景情况:
- 金属造中的变形不均质会影响最终部件的机械性能.
- 通过可控变形优化β-合金的微观结构和机械性能对于工业应用至关重要.
研究的目的:
- 为了研究不同热变形水平对新型亚稳定β-合金的微观结构和机械性能的影响,TB18.
- 为了确定变形,再结晶纹理和TB18合金中的机械性能之间的关系.
主要方法:
- TB18合金 (Ti-5.3Cr-4.9Mo4.9V-4.3Al-0.9Nb-0.3Fe) 经历了三个变形级别 (20-40%和60%) 随后进行了固体溶液和老化处理.
- 使用X射线衍射分析,分析固体溶液和再结晶过程中的纹理演变.
- 评估机械性能,特别是正常方向 (ND) 的可塑性.
主要成果:
- 低变形 (20-40%) 导致旋转立方纹理偏离到α纤维纹理.
- 高变形 (60%) 导致具有特定 (114) <113-3> 方向的α纤维纹理.
- 重结晶纹理转向alpha*-fiber,保留了 (114) <113-3> 的组成部分.
- 在ND中的可塑性受到矩阵中的<110>//ND纹理和老化后的α阶段中的 [112-0]α//ND的影响.
结论:
- 热造变形水平显著改变了TB18合金的再结晶质地.
- 控制变形提供了一种方法来调节TB18合金的机械性能.
- 通过受控的热造来定制合金特性的可行性得到证明.
相关概念视频
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01:12Temperature Dependent Deformation
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