| ZHU Hong-mei,HU Ji-peng,LI Bai-chun,LI Yong-zuo,QIU Chang-jun.Research Progress of Laser Cladding Stainless Steel Coating on Fe-based Substrate[J],49(3):74-84 |
| Research Progress of Laser Cladding Stainless Steel Coating on Fe-based Substrate |
| Received:June 12, 2019 Revised:March 20, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2020.03.010 |
| KeyWord:laser cladding Fe-based alloy stainless steel coating laser technology structure and performanceb |
| Author | Institution |
| ZHU Hong-mei |
School of Mechanical Engineering, University of South China, Hengyang , China |
| HU Ji-peng |
School of Mechanical Engineering, University of South China, Hengyang , China |
| LI Bai-chun |
School of Mechanical Engineering, University of South China, Hengyang , China |
| LI Yong-zuo |
School of Mechanical Engineering, University of South China, Hengyang , China |
| QIU Chang-jun |
School of Mechanical Engineering, University of South China, Hengyang , China |
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| Abstract: |
| Laser cladding technology is an important green manufacturing and remanufacturing technology to promote the upgrading of the national manufacturing industry. There are broad application prospects in key industrial fields such as aerospace, marine transportation, metallurgical machinery, etc. Powder materials are one of the key factors affecting the application and development of the laser manufacturing technology, among which Fe-based alloy materials possess their advantages such as low cost, good mechanical properties and wide application range. Specially, Fe-based stainless steel alloys have been the research focus due to the good mechanical properties and excellent corrosion resistance. The research progress of laser cladding Fe-based stainless steel coatings on the Fe-based substrate at home and abroad has been reviewed comprehensively. Currently, the types of stainless steel coatings have been divided into austenitic stainless steel, martensitic stainless steel, ferritic stainless steel and duplex stainless steel according to the microstructure. The effects of laser processing parameters (laser power, scanning speed, cladding mode, etc.), alloying elements (Al, Ni, B, Mo, etc.), additives (ceramic phases such as SiC, WC, VC, Cr3C2, Al2O3, etc.) and heat treatment (solid solution treatment, low-temperature tempering, etc.) on the microstructure and properties of the laser cladding stainless steel coatings have been emphasized. The effects mainly include the general rules and mechanism of the phase constitution, cross-section geometry, dilution ratio, residual stress, mechanical property and corrosion resistance. Besides, the main problems and the future development direction for laser cladding stainless steel coatings on Fe-based substrates have been pointed out. |
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