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Q235钢表面激光熔覆哈氏合金涂层及铁基非晶复合涂层的比较

Comparison of Hastelloy Coating and Fe-Based Amorphous Composite Coating Prepared by Laser Cladding on Q235 Steel

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摘要

采用脉冲激光器在Q235钢基体表面制备了哈氏合金涂层和铁基非晶复合涂层, 并利用扫描电子显微镜、X射线衍射仪、维氏硬度仪和电化学工作站等对涂层的显微组织、相组成、硬度及耐腐蚀性能进行表征。结果表明, 两种涂层均与基体形成了冶金化结合界面, 并且无明显的裂纹和孔洞。铁基非晶复合涂层兼具结晶组织和非晶组织, 而哈氏合金涂层则主要由共晶相和初晶相构成。研究发现, 两种涂层耐腐蚀性能相当, 但铁基非晶复合涂层具有更高的硬度。

Abstract

Hastelloy coating and Fe-based amorphous composite coating were prepared by pulsed laser on Q235 steel substrate. Scanning electron microscope, X-ray diffractionmeter, Vickers hardness tester and electrochemical system were applied to characterizing the microstructure, phase composition, hardness and corrosion resistance of coatings. The results show that metallurgical bonding interface without obvious cracks and pores is observed between both coatings and substrate. Furthermore, Fe-based amorphous composite coating displays both crystalline structure and amorphous structure, while Hastelloy coating mainly owns eutectic and primary structures. It is found that two types of coatings show the similar corrosion resistance, while the Fe-based amorphous composite coating exhibits higher hardness than the Hastelloy coating.

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中图分类号:TG31

DOI:10.3788/lop53.123102

所属栏目:薄膜

基金项目:油气田材料重点实验室开放基金(X151516KCL06)、青年实验室技术人员过关项目(201599010128)、西南石油大学青年教师“过学术关”项目(201599010123)

收稿日期:2016-06-27

修改稿日期:2016-08-27

网络出版日期:2016-11-19

作者单位    点击查看

王勤英:西南石油大学材料科学与工程学院, 四川 成都 610500
蒲雨薇:西南石油大学材料科学与工程学院, 四川 成都 610500
刘双:西南石油大学材料科学与工程学院, 四川 成都 610500
西宇辰:西南石油大学材料科学与工程学院, 四川 成都 610500
白树林:北京大学工学院材料科学与工程系, 北京 100871

联系人作者:王勤英(wangqy0401@126.com)

备注:王勤英(1987—), 女, 博士, 讲师, 主要从事激光熔覆层的制备与相关性能方面的研究。

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引用该论文

Wang Qinying,Pu Yuwei,Liu Shuang,Xi Yuchen,Bai Shulin. Comparison of Hastelloy Coating and Fe-Based Amorphous Composite Coating Prepared by Laser Cladding on Q235 Steel[J]. Laser & Optoelectronics Progress, 2016, 53(12): 123102

王勤英,蒲雨薇,刘双,西宇辰,白树林. Q235钢表面激光熔覆哈氏合金涂层及铁基非晶复合涂层的比较[J]. 激光与光电子学进展, 2016, 53(12): 123102

被引情况

【1】西宇辰,朱建波,刘双,唐怡荣,王勤英,白树林. 脉冲电流对激光熔覆层力学及耐腐蚀性能的影响. 激光与光电子学进展, 2018, 55(4): 43102--1

【2】刘双,王勤英,西宇辰,唐怡荣,裴瑞,白树林. 热处理对铁基激光熔覆层力学及耐腐蚀性能的影响. 激光与光电子学进展, 2019, 56(12): 121401--1

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