Mechanical Properties and Growth Mechanism of TiB2-TiC/Fe Composite Coating Fabricated in Situ by Laser Cladding

2020 ◽  
Vol 27 (6) ◽  
pp. 877-893
Author(s):  
Tianwei Yang ◽  
Zhaohui Wang ◽  
Shihai Tan ◽  
Fu Guo
2013 ◽  
Vol 341-342 ◽  
pp. 162-165 ◽  
Author(s):  
Fang Zhou ◽  
Hui Yao Yang ◽  
Liang Hua He

A Fe-based composite coating reinforced with in situ synthesized TiC-TiB2particles was successfully fabricated on Q235A by laser cladding with mixture powder of TiO2, Al, B4C, C and Fe55 as precursors. The microstructure and mechanical properties of coating were investigated. The results show that the main phases of coating are TiB2, TiC, (Fe,Cr)7C3and α-Fe. TiC particles show the shape of block, TiB2particles exhibit the shape of strip. Compared with the Q235A, the microhardness of the composite coating improved drastically.


2009 ◽  
Vol 36 (5) ◽  
pp. 1287-1291 ◽  
Author(s):  
雷贻文 Lei Yiwen ◽  
孙荣禄 Sun Ronglu ◽  
唐英 Tang Ying

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