增材制造的金属材料的异构性
Binghan Huangfu1, Yujing Liu1, Xiaochun Liu1
1Institute of Metals, College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410004, China.
Materials (Basel, Switzerland)
|August 10, 2024
概括
金属增材制造 (AM) 层层地制造零件. 本综述全面总结了各种金属AM材料的微结构和机械特性,以及异构性,突出了加工影响和改进策略.
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
- 金工业是一种金工业.
背景情况:
- 金属增材制造 (AM) 是一个快速发展的技术,在生物医学,航空航天,汽车,海洋和离岸行业都有应用.
- 增强制造使组件设计具有超越传统制造能力的增强性能.
- 现有的金属AM异构性研究是零碎的;缺乏对微观结构和机械性质的全面总结.
研究的目的:
- 提供各种增材制造的金属材料的微观结构和机械性能的深入,全面的总结.
- 分析AM过程,微观结构和由此产生的金属特性之间的关系,重点关注异性质.
- 审查了解和减轻金属AM异性质的最新进展.
主要方法:
- 粉床聚变 (PBF) 和定向能量沉积 (DED) 过程的基本原理的解释.
- 分析池和受热影响区域对微观结构的影响.
- 总结和介绍合金,不钢,-合金和高温合金的机械性能,微观结构和异构性.
主要成果:
- 增材制造工艺,微观结构特征和制造缺陷显著影响金属零件的异质性.
- 在不同的金属AM材料 (Ti合金,不钢,Mg-Al合金,高温合金) 中观察到不同的微观结构特征和机械性能.
- 后热处理可以有效地改善金属AM部件的机械性质的异构性.
结论:
- 制造工艺参数,池动态和由此产生的微观结构之间的关系决定了金属零件的异质性行为.
- 了解和控制微结构演变是管理金属AM的机械性质和异性质的关键.
- 后加工技术,特别是热处理,为减轻异构性和优化增材制造金属组件性能提供了可行的解决方案.
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