Enhancing the wear and corrosion resistance of Q345 steel via a martensitic stainless steel hardfacing coating deposited by multiple-pass MIG welding

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-09-29 DOI:10.1016/j.wear.2025.206365

Mingxiao Shi , Jingyong Li , Chaoming Shen , Changhui Liu , Zhidong Yang , Xiang Ma

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引用次数: 0

Abstract

Surface hardening techniques of steel are of important practical significance for the production of wear-resistant parts. Hardfacing is a well-recognized technique that is efficient and economical. In this work, a martensitic stainless steel hardfacing coating was deposited by multiple-pass MIG welding. The surface wear and corrosion resistance of the Q345 steel were significantly improved by the coating. The bonding strength between the substrate and the coating is greater than the tensile strength of the substrate. The microstructure of the coating consists of lath martensite embedded with (Cr, Fe)₇C₃ particles. The formation of martensite in the coating plays a vital role in improving the wear resistance and bonding strength. The presence of a large amount of chromium imparts excellent corrosion resistance to the coating. The wear resistance increases while the corrosion resistance decreases in the order of X12Cr13, X20Cr13, and X30Cr13 coatings. X30Cr13 coating has the best wear resistance among these three coatings. Hence, the optimum coating is X30Cr13 coating. These results highlight new possibilities for the surface hardening of steel.

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通过多道次MIG焊沉积马氏体不锈钢堆焊层，提高Q345钢的耐磨损和耐腐蚀性能

钢的表面硬化技术对耐磨件的生产具有重要的现实意义。堆焊是一种公认的高效、经济的技术。采用多道次MIG焊沉积了一层马氏体不锈钢堆焊层。该涂层明显改善了Q345钢的表面磨损和耐腐蚀性能。基材与涂层之间的结合强度大于基材的抗拉强度。涂层组织为嵌有（Cr, Fe）7C3颗粒的板条马氏体。涂层中马氏体的形成对提高涂层的耐磨性和结合强度起着至关重要的作用。大量铬的存在使涂层具有优异的耐腐蚀性。涂层的耐磨性依次升高，耐蚀性依次降低，依次为X12Cr13、X20Cr13、X30Cr13。其中，X30Cr13涂层的耐磨性最好。因此，最佳涂层为X30Cr13涂层。这些结果突出了钢的表面硬化的新可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.