45钢表面激光熔覆Co基合金覆层工艺优化

材料导报

2020, Vol. 34

Issue (Z1): 448-451

金属与金属基复合材料

45钢表面激光熔覆Co基合金覆层工艺优化

蒋三生¹, 梁立帅², 舒凤远²

1 北京农业职业学院机电工程学院,北京 102208;
2 哈尔滨工业大学(威海)材料科学与工程学院,威海 264209

Process Optimization of Laser Cladding Co-based Alloy Cladding Layeron 45 Steel Surface

JIANG Sansheng¹, LIANG Lishuai², SHU Fengyuan²

1 School of Mechanical and Electronic Engineering, Beijing Vocational College of Agriculture, Beijing 102208, China;
2 School of Materials Science and Engineering, Harbin University of Technology(Weihai), Weihai 264209, China

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摘要以CoFeCrNiSiB系合金粉末作为熔覆粉末,在45钢表面制备合金覆层,对覆层的显微硬度、高温耐磨性和稀释率进行了实验研究;采用正交试验极差分析法确定了电流、脉宽和频率三个工艺参数对合金覆层显微硬度、高温耐磨性和稀释率的影响规律。结果表明:激光熔覆工艺参数对合金覆层内部显微硬度的影响程度由大到小依次为输出电流>脉冲宽度>脉冲频率,高温耐磨性影响程度由大到小依次为脉冲频率>输出电流>脉冲宽度,稀释率影响程度由大到小依次为输出电流>脉冲频率>脉冲宽度;优化的工艺参数为电流380 A,频率4 Hz,脉宽8 ms和激光功率467 W。

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关键词: 激光熔覆工艺优化 45钢 Co基合金熔覆层

Abstract: The microhardness, high temperature wear resistance and dilution rate of the alloy coating on the surface of 45 steel were studied by using CoFeCrNiSiB alloy powder as cladding powder.The effects of current, pulse width and frequency on the microhardness, high temperature wear resistance and dilution of the coating were investigated by orthogonal test range analysis. The results show that the effect of laser cladding parameters on the microhardness of the alloy coating from large to small was output current & pulse width & pulse frequency in turn, the influence degree of high temperature wear resistance from big to small was pulse frequency & output current & pulse width in turn, the influence degree of high temperature wear resistance from big to small was output current & pulse frequency & pulse width in turn. The optimized process parameter was current 380 A, frequency 4 Hz, pulse width 8 ms and laser power 467 W.

Key words: laser cladding process optimization 45 steel Co-based alloy cladding layer

发布日期: 2020-07-01

ZTFLH:

TG115.6

基金资助: 北京市教委科技计划一般项目(KM201812448005)

作者简介: 蒋三生,北京农业职业学院机电工程学院智能制造技术专业副主任,硕士,副教授,2008年毕业于北京交通大学材料加工工程专业。以第一作者在国内外学术期刊上发表论文10余篇,获批实用新型专利1项,参与国家发明专利2项,主持省部级课题1项,其他课题4项,主要研究方向为材料加工过程、数字化设计与3D打印等。

引用本文:

蒋三生, 梁立帅, 舒凤远. 45钢表面激光熔覆Co基合金覆层工艺优化[J]. 材料导报, 2020, 34(Z1): 448-451.
JIANG Sansheng, LIANG Lishuai, SHU Fengyuan. Process Optimization of Laser Cladding Co-based Alloy Cladding Layeron 45 Steel Surface. Materials Reports, 2020, 34(Z1): 448-451.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2020/V34/IZ1/448

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