在 Q235 钢上通过激光熔融沉积不同当量比的 316 L 和 2Cr13 的冲击韧性和耐磨性

IF 1.2 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Y. Zhao, C. Huang, X. Chen, H. Liu, M. Huang, Y. Yuan, J. Zhong, Y. Zhang, J. Xiong, D. Yang
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引用次数: 0

摘要

本文系统研究了以不同比例混合 316 L 和 2Cr13 合金粉末制备的熔覆材料。采用激光熔化沉积法将粉末熔化并沉积在 Q235B 碳钢基板上,同时使用高 Ni 过渡层和适当的激光工艺参数。制备出厚度为 10 毫米 ±0.5 毫米的双金属片。在不同的合金配比下,对双金属片不同部位的微观结构、冲击韧性和硬度进行了观察和测试。结果表明,镍铬当量比增加,双金属板的硬度和耐磨性增加,共晶结构中的共晶偏析程度也增加。当 2Cr13 的比例达到 60% 时,冲击韧性显著增加,结构中出现了针状第二相。X 射线衍射仪分析确定第二相为(Fe, Cr)7C3。经过夏比冲击试验,断口微观结构显示出许多凹陷,表明微孔聚集断裂。这项研究为利用激光熔融沉积技术在钢铁部件上制备大厚度覆层提供了指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Impact toughness and wear resistance of different equivalent ratios of 316 L and 2Cr13 by laser melting deposition on Q235 steel
      Kerbschlagzähigkeit und Verschleißfestigkeit von verschiedenen Äquivalenzverhältnissen von 316 L und 2Cr13 durch Laserstrahlschmelzabscheidung auf Q235 Stahl

Impact toughness and wear resistance of different equivalent ratios of 316 L and 2Cr13 by laser melting deposition on Q235 steel Kerbschlagzähigkeit und Verschleißfestigkeit von verschiedenen Äquivalenzverhältnissen von 316 L und 2Cr13 durch Laserstrahlschmelzabscheidung auf Q235 Stahl

This paper systematically studies cladding materials prepared by mixing 316 L and 2Cr13 alloy powders in different ratios. The powder was melted and deposited on a Q235B carbon steel substrate using laser melting deposition with a high Ni transition layer and appropriate laser process parameters. Bimetallic plates with a thickness of 10 mm ±0.5 mm was prepared. The microstructure of different parts of the bimetallic plates and the impact toughness and hardness were observed and tested under different alloy ratios. The results indicate that the Nickel-Chromium equivalence ratio increased, the hardness and wear resistance of the bimetallic plates increased, and the degree of eutectic segregation in the eutectic structure also increased. When the ratio of 2Cr13 reached 60 %, the impact toughness increased significantly, and the needle-like second phase appeared in the structure. X-ray diffractometer analysis determined that this second phase was (Fe, Cr)7C3. After Charpy impact testing, the fracture microstructure showed many dimples, indicating micropore aggregation fracture. This study guides preparing large-thickness cladding layers on iron and steel parts using laser melting deposition.

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来源期刊
Materialwissenschaft und Werkstofftechnik
Materialwissenschaft und Werkstofftechnik 工程技术-材料科学:综合
CiteScore
2.10
自引率
9.10%
发文量
154
审稿时长
4-8 weeks
期刊介绍: Materialwissenschaft und Werkstofftechnik provides fundamental and practical information for those concerned with materials development, manufacture, and testing. Both technical and economic aspects are taken into consideration in order to facilitate choice of the material that best suits the purpose at hand. Review articles summarize new developments and offer fresh insight into the various aspects of the discipline. Recent results regarding material selection, use and testing are described in original articles, which also deal with failure treatment and investigation. Abstracts of new publications from other journals as well as lectures presented at meetings and reports about forthcoming events round off the journal.
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