挤出Mg-6Bi-3Zn合金的微观结构,非基础纹理和强度柔性
Xin Li1, Jian Mao1, Xuefei Huang1
1College of Material Science and Engineering, Sichuan University, Chengdu 610065, China.
Materials (Basel, Switzerland)
|August 10, 2024
概括
将添加到-合金中可以增强微观结构和机械性能. 新的Mg-6Bi-3Zn合金在热挤出后显示出更好的拉伸强度和柔性.
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.
- 机械工程 机械工程
背景情况:
- 合金重量轻,但往往缺乏足够的强度和柔性.
- 三级合金是改善合金性能的一种常见策略.
- 了解合金元素对微观结构和机械行为的影响至关重要.
研究的目的:
- 研究 (Zn) 合金对Mg-6Bi合金微观结构和拉伸力机械性能的影响.
- 描述热挤出对Mg-6Bi-3Zn合金的影响.
- 评估Zn作为Mg-Bi合金的合金元素的潜力.
主要方法:
- 在300°C的热挤出.
- 使用传输电子显微镜 (TEM) 和电子反散衍射 (EBSD) 的微结构分析.
- 通过X射线衍射 (XRD) 进行纹理分析.
- 在室温下测试拉伸力学性能.
主要成果:
- 挤出的Mg-6Bi-3Zn合金表现出双模微结构,包括未再结晶和动态再结晶的粒.
- 添加导致质地减弱,并促进了Mg3Bi2相的动态沉.
- 这种合金的抗拉强度为336 MPa,屈服强度为290 MPa,延长率为11.5%.
结论:
- 添加有利于提高Mg-6Bi合金的强度.
- 改善的特性归因于微观结构的修改和降水强化.
- Mg-6Bi-3Zn合金表现出强度和可塑性的良好平衡.
相关概念视频
Mechanical Characteristics of Steel
410
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
410
Stress-Strain Diagram - Ductile Materials
666
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
666


