The comparative study of W/Cr addition in Fe-base by laser surface alloying on fatigue wear resistance of GCI

2016 ◽  
Vol 286 ◽  
pp. 25-35 ◽  
Author(s):  
Zhi-kai Chen ◽  
Chao Meng ◽  
Ji-xing Dong ◽  
Ti Zhou ◽  
Xin Tong ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Comparative Study ◽  
Laser Surface ◽  
Surface Alloying ◽  
Fatigue Wear ◽  
Laser Surface Alloying ◽  
Cr Addition ◽  
The Comparative Study

Laser surface alloying with carbon on 15-5PH steel for improved wear resistance

2020 ◽  
pp. 1-9
Author(s):  
Bo Zhang ◽  
Huaming Wang ◽  
Rui Chen ◽  
Bei He ◽  
Yinggang Cao ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

TiC Reinforced Steel Matrix Composite Layers Produced by Laser Surface Alloying

2008 ◽  
Vol 59 ◽  
pp. 55-61 ◽  
Author(s):  
A. Fernández-Vicente ◽  
G. Castro ◽  
J.L. Arias ◽  
Maria Angeles Montealegre
Keyword(s):  
Wear Resistance ◽  
Feeding Rate ◽  
Laser Surface ◽  
Beam Power ◽  
Powder Injection ◽  
Steel Matrix ◽  
Surface Alloying ◽  
Feeding Rates ◽  
Laser Surface Alloying ◽  
Powder Feeding

In the present work, laser surface alloying of H13 tool steel by using TiC has been performed by means of DHPDL (Direct high power diode laser). Different layers were produced by varying laser beam power and powder feeding rate. Several alloying degrees were obtained depending on the laser parameters employed. Laser surface alloyed layers were analyzed by using optical and scanning electron microscopy. Wear resistance was evaluated through pin-on-disk tests at room temperature. In general, it was observed that dilution of TiC powders into the molten H13 substrate decreased as the powder-feeding rate increased and particles size of the titanium carbide precipitates was larger for the higher feeding rates. Wear measurements showed lower values for the wear resistance coefficient of laser alloying layers produced at higher values of the powder injection (feeding) rate. Analysis of the wear surface track was conducted and the specific contribution of the microstructural features on the wear coefficient was assessed. Thus, it was found that larger particles sizes and particle contents protected the martensitic and dendritic steel matrix from being deeply worn. Lower TiC contents in the alloyed layer gave rise to a higher contribution of the plastic deformation in the wear track.

Microstructure and wear resistance of composite layers on a ductile iron with multicarbide by laser surface alloying

2010 ◽  
Vol 256 (23) ◽  
pp. 7001-7009 ◽  
Author(s):  
Hua Yan ◽  
Aihua Wang ◽  
Zhaoting Xiong ◽  
Kaidong Xu ◽  
Zaowen Huang
Keyword(s):  
Wear Resistance ◽  
Ductile Iron ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying ◽  
Composite Layers

Improving the wear resistance of AA 6061 by laser surface alloying with NiTi

2007 ◽  
Vol 61 (19-20) ◽  
pp. 4058-4061 ◽  
Author(s):  
H.C. Man ◽  
S. Zhang ◽  
F.T. Cheng
Keyword(s):  
Wear Resistance ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

Microstructure and Tribological Properties of ZrB2-Containing Composite Coating Produced on Pure Ti Substrate by Laser Surface Alloying

2010 ◽  
Vol 133 (1) ◽  
Author(s):  
Chun Guo ◽  
Jiansong Zhou ◽  
Jierong Zhao ◽  
Jianmin Chen
Keyword(s):  
Composite Coating ◽  
Three Dimensional ◽  
Laser Surface ◽  
Surface Alloying ◽  
X Ray Diffraction ◽  
Wear Properties ◽  
Fatigue Wear ◽  
Surface Mapping ◽  
Laser Surface Alloying ◽  
Adhesion Wear

ZrB 2 -containing composite coating was fabricated on pure Ti substrate by laser surface alloying. The microstructure of the composite coating was investigated by means of X-ray diffraction and scanning electron microscopy (SEM). The friction and wear properties of ZrB2-containing composite coating sliding against a GCr15 steel ball at different normal loads and sliding speeds were evaluated. The morphologies of the worn surfaces were analyzed by means of SEM and three dimensional noncontact surface mapping. It is shown that the microhardness and wear resistance of the pure Ti substrate are greatly increased after laser surface alloying, due to the formation of hard ZrB2 phase in the composite coating. Pure Ti substrate sliding against the GCr15 counterpart ball at room temperature is dominated by adhesion wear, abrasive wear, and severe plastic deformation, while ZrB2-containing composite coating involves only mild abrasive and fatigue wear when sliding against the GCr15 counterpart.

Laser surface alloying of aluminium with WC+Co+NiCr for improved wear resistance

2012 ◽  
Vol 206 (15) ◽  
pp. 3333-3341 ◽  
Author(s):  
Subhasisa Nath ◽  
Sisa Pityana ◽  
Jyotsna Dutta Majumdar
Keyword(s):  
Wear Resistance ◽  
Laser Surface ◽  
Surface Alloying ◽  
Laser Surface Alloying

Getting wear-resistant coatings on aluminum alloys by laser alloying

2021 ◽  
Vol 2021 (9) ◽  
pp. 42-48
Author(s):  
Larisa Petrova ◽  
Victor Alexandrov ◽  
Maxim Morshchilov
Keyword(s):  
Wear Resistance ◽  
Aluminum Alloys ◽  
Laser Surface ◽  
Optimal Selection ◽  
Laser Alloying ◽  
Surface Alloying ◽  
Laser Surface Alloying ◽  
Wear Resistant Coatings ◽  
Selection Of ◽  
Hardened Surface

A method to improve the properties of aluminum alloys by laser surface alloying is considered. The optimal selection of alloying elements is carried out. It is shown that this method of hardening increases the wear resistance and reduces the friction ratio of the hardened surface.

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