Effect of Y2O3 Addition on Microstructure and Properties of Laser Cladded Al-Si Coatings on AZ91D Magnesium Alloy

被引:8
|
作者
Wan, Xiaofeng [1 ]
Tian, Chuang [1 ]
Li, Yi [1 ]
Zhou, Jingling [1 ]
Qian, Shuangqing [1 ]
Su, Lihong [2 ]
Wang, Li [1 ]
机构
[1] Nantong Univ, Sch Mech & Mfg Engn, Nantong 226019, Peoples R China
[2] Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia
基金
澳大利亚研究理事会;
关键词
AZ91D magnesium alloy; laser cladding; Al-Si + Y2O3 coating; tribological property; wear resistance; corrosion resistance; MECHANICAL-PROPERTIES; WEAR-RESISTANCE; CORROSION-RESISTANCE; IMPROVEMENT; COMPOSITE;
D O I
10.3390/ma16010338
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The effect of Y2O3 addition on the microstructure and properties of the laser cladded Al-Si alloy coating on the surface of AZ91D magnesium alloy was investigated in this study. The experimental results showed that the Al-Si + Y2O3 cladding layers contained alpha-Mg, Mg2Si, Al4MgY and a small amount of Al12Mg17 phases. The coarse dendrites, reticulated eutectic structures and massive phases in the coatings tended to be refined and gradually uniformly distributed with the increased amount of Y2O3. The introduction of Y2O3 into the cladding layer favored the improvement of microhardness and wear resistance due to the grain refinement strengthening and dispersion strengthening. The addition of Y2O3 also promoted the reduction of localized corrosion sites and made the corrosion surface smoother, implying that the corrosion resistance of the Y2O3-modified coatings was better than that of the unmodified cladding layer.
引用
收藏
页数:15
相关论文
共 50 条
  • [41] Effects of mischmetal on microstructure and mechanical properties of AZ91D magnesium alloy
    Zheng Weichao
    Li Shuangshou
    Tang Bin
    Zeng Daben
    ACTA METALLURGICA SINICA, 2006, 42 (08) : 835 - 842
  • [42] Effect of RE on the ignition-proof, microstructure and properties of AZ91D magnesium alloy
    Chen, ZH
    Ren, XP
    Zhang, Y
    JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, 2005, 12 (06): : 540 - 544
  • [43] Laser (Nd:YAG) cladding of AZ91D magnesium alloys with AI+Si+Al2O3
    Jun, Y
    Sun, GP
    Wang, HY
    Jia, SQ
    Jia, SS
    JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 407 (1-2) : 201 - 207
  • [45] Effect of Strain Rate and Temperature on Fracture and Microstructure Evolution of AZ91D Magnesium Alloy Processed by Laser Surface Melting
    Meng, Chao
    Chen, Zhikai
    Yang, Haining
    Li, Gang
    Wang, Xuelei
    Bao, Heng
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (10): : 5192 - 5204
  • [47] Preparation and properties of composite ceramic coating containing Al2O3-ZrO2-Y2O3 on AZ91D magnesium alloy by plasma electrolytic oxidation
    Luo, Haihe
    Cai, Qizhou
    He, Jian
    Wei, Bokang
    CURRENT APPLIED PHYSICS, 2009, 9 (06) : 1341 - 1346
  • [48] Effect of Phosphating Additives on Corrosion Resistance of Phosphate Coatings on AZ91D Magnesium Alloy
    Lin, Bilan
    Xu, Yuye
    Li, Encai
    MATERIALS PROCESSING TECHNOLOGY, 2011, 337 : 112 - +
  • [49] Effect of alumina sol addition to micro-arc oxidation electrolyte on the properties of MAO coatings formed on magnesium alloy AZ91D
    Laleh, M.
    Rouhaghdam, A. Sabour
    Shahrabi, T.
    Shanghi, A.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 496 (1-2) : 548 - 552
  • [50] Effect of excimer laser surface melting on the microstructure and corrosion performance of the die cast AZ91D magnesium alloy
    Coy, A. E.
    Viejo, F.
    Garcia-Garcia, F. J.
    Liu, Z.
    Skeldon, P.
    Thompson, G. E.
    CORROSION SCIENCE, 2010, 52 (02) : 387 - 397