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添加式摩擦冲动沉积处理对1045钢的微观结构和机械性能的影响
Wei Lei1, Xudong Ran1,2, Qi Wang1
1Southwest Technology and Engineering Research Institute, Chongqing 400039, China.
Materials (Basel, Switzerland)
|March 27, 2025
概括
添加摩擦混合沉积 (AFSD) 克服了1045钢的作用.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
背景情况:
- 1045钢具有较差的接性,阻碍其在增材制造中的应用.
- 添加摩擦混合沉积 (AFSD) 为制造1045钢件提供了一个潜在的解决方案.
研究的目的:
- 为了研究沉积温度,工具旋转速度和轴向力对AFSD 1045钢的机械性能的影响.
- 为了分析AFSD 1045钢的微观结构和强化机制.
主要方法:
- 球形1045钢粉用于添加摩擦混合沉积.
- 关键的工艺参数 (沉积温度,工具旋转率,轴向力) 是不同的.
- 分析了机械性能,微观结构 (动态再结晶,粒径),拉力断裂形态,几何上必要的脱位 (GND) 密度和巧合点格子 (CSL) 边界分布.
主要成果:
- 动态再结晶 (DRX) 导致细小的,随机定向的等粒 (1-3μm),对工艺参数敏感.
- AFSD 1045 钢实现了高表面硬度 (高达 477.2 HV),最终抗拉强度 (1061.91172.3 MPa) 和延伸度 (8.619.0%).
- 与其他成型工艺相比,观察到优越的机械性能.
结论:
- AFSD使1045钢的高效和高性能增材制造成为可能.
- 该研究提供了关于AFSD 1045钢的强化机制的见解.
- AFSD为合并和制造1045钢材提供了一个可行的替代方案.
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