Microstructure and mechanical properties of the coatings in laser cladding and laser-induction hybrid cladding of full-scale rail

2018 ◽  
Author(s):  
Li Meng ◽  
Kangle Hou ◽  
Dengzhi Wang ◽  
Qianwu Hu ◽  
Xiaoyan Zeng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laser Cladding ◽  
Full Scale ◽  
Microstructure And Mechanical Properties ◽  
Laser Induction

Effects of Y2O3 on Microstructure and Mechanical Properties of Laser Clad Coatings Reinforced by In Situ Synthesized TiB and TiC

2011 ◽  
Vol 675-677 ◽  
pp. 589-592 ◽  
Author(s):  
Jun Li ◽  
Zhi Shui Yu ◽  
Hui Ping Wang
Keyword(s):  
Mechanical Properties ◽  
Laser Cladding ◽  
Volume Fraction ◽  
Fine Needle ◽  
Microstructure And Mechanical Properties ◽  
Y2o3 Addition ◽  
Cracking Sensitivity

Titanium-based coatings reinforced by in situ synthesized TiB and TiC were deposited on Ti6Al4V by laser cladding. The effects of Y2O3 on microstructure and mechanical properties of the coatings were investigated. The coating without Y2O3 is mainly composed of a-Ti cellular dendrites and an eutecticum in which a large number of coarse and fine needle-shaped TiB and a few equiaxial TiC particles are homogeneously embedded. A small amount of Y2O3 addition can refine the microstructure by transforming a-Ti grains from cellular dendrites to columnar or equiaxial crystals, and can increase the volume fraction of the reinforcements. The addition of Y2O3 can also increase microhardness and reduce the cracking sensitivity of the coating.

Morphology, Microstructure, and Mechanical Properties of Fe50-TiC Composite Laser Cladding Layer on Cr12 Mold Steel

2021 ◽  
Vol 58 (7) ◽  
pp. 0714002
Author(s):  
王乾廷 Wang Qianting ◽  
曾宪斌 Zeng Xianbin ◽  
陈昌荣 Chen Changrong ◽  
练国富 Lian Guofu ◽  
黄旭 Huang Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Laser Cladding ◽  
Cladding Layer ◽  
Microstructure And Mechanical Properties ◽  
Composite Laser
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