Dendrite refinement and wear performance enhancement in laser-cladded Fe-based coatings after multi-step laser remelting

被引：30
作者：
Sun, Bo [1 ]
Wang, Qianqian [1 ,4 ]
Chen, Yongxiong [2 ]
Cheng, Jiangbo [3 ]
Zhao, Haichao [5 ]
Zhu, Shuaishuai [4 ]
Zhang, Baosen [4 ]
Liang, Xiubing [2 ]
Shen, Baolong [1 ]
机构：
[1] Southeast Univ, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Peoples R China
[2] Acad Mil Sci, Def Innovat Inst, Beijing 100071, Peoples R China
[3] Hohai Univ, Coll Mech & Mat, Nanjing 211100, Peoples R China
[4] Nanjing Inst Technol, Sch Mat Sci & Engn, Jiangsu Key Lab Adv Struct Mat & Applicat Technol, Nanjing 211167, Peoples R China
[5] Acad Army Armored Force, Natl Engn Res Ctr Mech Prod Remfg, Beijing 100072, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2022年 / 447卷
基金：
中国国家自然科学基金;
关键词：
Fe-based coatings; Laser cladding; Multi-step laser remelting; Dendrite refinement; Wear resistance; GLASS-FORMING ABILITY; MECHANICAL-PROPERTIES; MICROSTRUCTURE EVOLUTION; COMPOSITE COATINGS; DEPOSITION; RESISTANCE; ALLOYS;
D O I：
10.1016/j.surfcoat.2022.128794
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this work, Fe-based coatings were prepared by laser cladding and the effects of multi-step laser remelting (MLR) on phase components, microstructure evolution, hardness and wear behavior were investigated. The as-cladded coating exhibits a complex phase structure and no obvious variation is observed when remelted for 1-3 times. The as-cladded coating comprises three structures including Mo-rich dendrites, gamma-(Fe, Cr) matrix and several kinds of intermetallic compounds. The Mo-rich dendrites were gradually refined to nanoscale size grains with the increase of remelting times. The Vickers hardness and wear resistance of the Fe-based coatings improves firstly and then aggravates with the MLR process. The highest hardness of 1487.4 HV0.1 and the smallest wear rate of (0.21 +/- 0.01) x 10(-6) mm(3)/(N.m) is obtained when the coating is remelted twice. The improved wear performance mainly comes from the existence of hard intermetallic compounds and the refinement of Mo-rich dendrites. Despite a slight compensation of hardness and wear resistance, the coating remelted for three times also exhibits an excellent wear performance due to the microstructure homogenization and the absence of fatigue damage. This work broadens the opportunities to the microstructure modification and property optimization for laser-cladded coatings and presents further understanding on laser manufacturing technology.
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页数：11
相关论文
共 52 条
[1]   Boron addition in a non-equiatomic Fe50Mn30Co10Cr10 alloy manufactured by laser cladding: Microstructure and wear abrasive resistance [J].
Aguilar-Hurtado, Jose Y. ;
Vargas-Uscategui, Alejandro ;
Paredes-Gil, Katherine ;
Palma-Hillerns, Rodrigo ;
Tobar, Maria J. ;
Amado, Jose M. .
APPLIED SURFACE SCIENCE, 2020, 515
[2]   The effect of boron content on the microstructure and mechanical properties of Fe50-XMn30Co10Cr10BX (x=0, 0.3, 0.6 and 1.7 wt%) multi-component alloys prepared by arc-melting [J].
Aguilar-Hurtado, Jose Y. ;
Vargas-Uscategui, Alejandro ;
Zambrano-Mera, Dario ;
Palma-Hillerns, Rodrigo .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 748 :244-252
[3]   CONTACT AND RUBBING OF FLAT SURFACES [J].
ARCHARD, JF .
JOURNAL OF APPLIED PHYSICS, 1953, 24 (08) :981-988
[4]   Effect of the content of B4C on microstructural evolution and wear behaviors of the laser-clad coatings fabricated on Ti6Al4V [J].
Bai, L. L. ;
Li, J. ;
Chen, J. L. ;
Song, R. ;
Shao, J. Z. ;
Qu, C. C. .
OPTICS AND LASER TECHNOLOGY, 2016, 76 :33-45
[5]   Microstructure and wear resistance of laser cladded Ni-Cr-Co-Ti-V high-entropy alloy coating after laser remelting processing [J].
Cai, Zhaobing ;
Cui, Xiufang ;
Liu, Zhe ;
Li, Yang ;
Dong, Meiling ;
Jin, Guo .
OPTICS AND LASER TECHNOLOGY, 2018, 99 :276-281
[6]   Pronounced enhancement of glass-forming ability of Fe-Si-B-P bulk metallic glass in oxygen atmosphere [J].
Chang, Chuntao ;
Zhang, Jianhua ;
Shen, Baolong ;
Wang, Weihua ;
Inoue, Akihisa .
JOURNAL OF MATERIALS RESEARCH, 2014, 29 (10) :1217-1222
[7]   Formation and beneficial effects of the amorphous/nanocrystalline phase in laser remelted (FeCoCrNi)75Nb10B8Si7 high-entropy alloy coatings fabricated by plasma cladding [J].
Chen, Hao ;
Cui, Hongzhi ;
Jiang, Di ;
Song, Xiaojie ;
Zhang, Lijun ;
Ma, Guoliang ;
Gao, Xiaohua ;
Niu, Hushan ;
Zhao, Xiaofeng ;
Li, Jian ;
Zhang, Chunzhi ;
Wang, Ren ;
Sun, Xiaohong .
JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 899
[8]   Nb doping in laser-cladded Fe25Co25Ni25(B0.7Si0.3)25 high entropy alloy coatings: Microstructure evolution and wear behavior [J].
Cheng, Jiangbo ;
Sun, Bo ;
Ge, Yunyun ;
Hu, Xianlong ;
Zhang, Lianhua ;
Liang, Xiubing ;
Zhang, Xiancheng .
SURFACE & COATINGS TECHNOLOGY, 2020, 402
[9]   Effect of B/Si ratio on structure and properties of high-entropy glassy Fe25Co25Ni25(BxSi1-x)25 coating prepared by laser cladding [J].
Cheng, Jiangbo ;
Sun, Bo ;
Ge, Yunyun ;
Hu, Xianlong ;
Zhang, Lianhua ;
Liang, Xiubing ;
Zhang, Xiancheng .
SURFACE & COATINGS TECHNOLOGY, 2020, 402
[10]   Microstructure and fracture toughness of the FePSiB-based amorphous/nanocrystalline coatings [J].
Cheng, Jiangbo ;
Zhao, Shuo ;
Liu, Dan ;
Feng, Yuan ;
Liang, Xiubing .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 696 :341-347
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