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复合Fe-Cr-V-C涂层由等离子转移弧粉末表面涂层制成
Xin Zhang1, Yong Liu1, Huichao Cheng1
1State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.
Materials (Basel, Switzerland)
|July 29, 2023
概括
这项研究使用等离子体转移弧面对钢进行了强大的Fe-Cr-V-C涂层. 由此产生的涂层具有特殊的硬度和强大的金结合,提高了材料性能.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 金工业是金工业的一个方面.
背景情况:
- 先进的涂层对于提高钢件的耐用性和性能至关重要.
- 等离子转移弧 (PTA) 表面是创建高性能表面层的关键增材制造技术.
- 了解工艺参数对涂层性能的影响对于优化材料应用至关重要.
研究的目的:
- 开发使用PTA粉末表面的新型复合Fe-Cr-V-C涂层.
- 为了研究弧流和离子气体流速对涂层特性的影响.
- 评估在42CrMo钢基板上开发的涂层的微结构演变,硬度和粘合强度.
主要方法:
- 复合Fe-Cr-V-C涂层是在42CrMo钢基板上通过PTA粉末表面制造的.
- 系统地研究了波动弧电流和离子气体流速的影响.
- 微结构分析,硬度测试 (HRC) 和抗拉强度测量被用来描述涂层.
主要成果:
- 在Fe矩阵内观察到硬相 (例如VxCy,M7C3) 的现场形成和均分布.
- 沉和分散强化机制导致了高表面硬度,高达64.1HRC.
- 实现了强大的金结合,拉伸强度超过811MPa,表明了出色的基板涂层粘附性.
结论:
- PTA粉末表面涂料是生产高硬度,高强度Fe-Cr-V-C复合涂料的有效方法.
- 优化的工艺参数导致优越的微结构性质和增强的粘合性能.
- 这些先进的涂料在苛刻的环境中提供了耐磨性和高性能应用的巨大潜力.
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