scholarly journals Microstructure of MC-Fe Composite Layer on Carbon Steel by Laser Surface Alloying

2014 ◽  
Vol 9 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Takuto Yamaguchi
Keyword(s):  
Carbon Steel ◽  
Composite Layer ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

Laser surface alloying of medium carbon steel with SiC(P)

2003 ◽  
Vol 423 (1) ◽  
pp. 41-53 ◽  
Author(s):  
G Thawari ◽  
G Sundarararjan ◽  
S.V Joshi
Keyword(s):  
Carbon Steel ◽  
Medium Carbon Steel ◽  
Laser Surface ◽  
Surface Alloying ◽  
Medium Carbon ◽  
Laser Surface Alloying

Laser Surface Alloying of Low Carbon Steel Using High-entropy Alloy Precursors

2016 ◽  
Vol 23 (11) ◽  
pp. 1195-1199 ◽  
Author(s):  
Xiao-tao Liu ◽  
Wen-bin Lei ◽  
Qun-jiao Wang ◽  
Wei-ping Tong ◽  
Chang-sheng Liu ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Laser Surface ◽  
High Entropy Alloy ◽  
Low Carbon ◽  
Surface Alloying ◽  
Laser Surface Alloying ◽  
High Entropy

Laser surface alloying of carbon steel with FeCrSi3N4 powders

1994 ◽  
Vol 30 (11) ◽  
pp. 1461-1466 ◽  
Author(s):  
Chong-Cheng Huang ◽  
Wen-Ta Tsai ◽  
Ju-Tung Lee
Keyword(s):  
Carbon Steel ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

Laser surface alloying of carbon steel and α-Fe with CrB2

1991 ◽  
Vol 45 (1-3) ◽  
pp. 417-423 ◽  
Author(s):  
G. Shafirstien ◽  
M. Bamberger ◽  
M. Langohr ◽  
F. Maisenhalder
Keyword(s):  
Carbon Steel ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

The Spherical Casting WC Powder and its Application in Laser Surface Alloying Treatment

2013 ◽  
Vol 785-786 ◽  
pp. 910-913
Author(s):  
Lei Wang ◽  
Yi Xiang Cai ◽  
Xin Liu ◽  
Huan Wen Xie ◽  
Xin Tong
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Spherical Shape ◽  
Medium Carbon Steel ◽  
Primary Phase ◽  
Laser Surface ◽  
Surface Alloying ◽  
Medium Carbon ◽  
Laser Surface Alloying ◽  
High Microhardness

The spherical casting WC powder is a kind of new potential wear-resistance ceramic material. In this paper, its chemical composition, surface morphology, microstructure, phase, microhardness and some powder characteristics were investigated, and then the powders were applied in laser surface alloying treatment on medium carbon steel. The results indicate that the spherical WC powder consists of (wt.%) 94.06 W, 4.03 C and 1.91 other elements including Fe, V, Cr and Nb. Most of powder particles have regular spherical shape and smooth surface, and the microstructure is acicular eutectic of WC and W2C, which leads to high microhardness of 2812 HV. The fluidity of powders is 5.97 s/50g, and the apparent density of powders is 10.1 g/cm3. The laser alloyed layer is characterized by dendritic primary phase, ledeburite microstructure and some residual WC particles. The laser surface alloying treatment with adding material of spherical casting WC powder can enhanc the abrasive wear resistance of medium carbon steel by over 200%.

TiC/Ti Composite Layers Fabricated by Laser Surface Alloying

2007 ◽  
Vol 336-338 ◽  
pp. 1148-1150
Author(s):  
Jian Bin Zhang ◽  
Ding Fan ◽  
Jing Jie Dai ◽  
Yao Ning Sun
Keyword(s):  
Continuous Wave ◽  
Composite Layer ◽  
Pure Titanium ◽  
Surface Hardness ◽  
Laser Surface ◽  
Commercially Pure Titanium ◽  
Surface Alloying ◽  
Micro Hardness ◽  
Laser Surface Alloying ◽  
Commercially Pure

Laser surface alloying is an attractive processing to improve surface hardness, wear and corrosion resistance. In this paper, a continuous wave CO2 laser was used to irradiate commercially pure titanium surface with pre-placed active carbon powders in argon atmosphere. A compact, well-adherent, and crack-free TiC/Ti composite layer was obtained. The microstructure and phase constitution of the alloyed layers were determined and analyzed, and the micro-hardness was measured. The result of X ray diffraction (XRD) analysis shows that the alloyed layers contain TiC and Ti (martensite). The scanning electron microscopy (SEM) observation shows TiC growth morphologies have a well-developed dendrite, cellular dendrite, globular microstructure and cross-petal microstructure. The mechanism of the formation of titanium carbides is discussed. Micro-hardness of the laser surface alloyed layer was improved to 420 Hv as compared to 200 Hv of the as-received commercially pure titanium.

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