High temperature wear resistance and thermal fatigue behavior of Stellite-6/WC coatings produced by laser cladding with Co-coated WC powder

Author(s):  
Guangyuan Wang ◽  
Jiazi Zhang ◽  
Ruiying Shu ◽  
Sen Yang
2012 ◽  
Vol 549 ◽  
pp. 567-571
Author(s):  
Luo Yi

4Cr5MoSiV1 steel, a widely used for hot work mould, contains Cr, Mo, V alloying elements that easily form carbides. The Micro-area chemical composition, microstructure, impact toughness and thermal fatigue behavior of 4Cr5MoSiV1 and 4Cr5MoSiV1H steels were investigated, the latter was carried on high temperature homogenizing and solution based on the former. The results showed that bulk eutectic carbides and elements segregation contained in the 4Cr5MoSiV1 steel reduced the impact toughness. But the impact toughness of the core of the mould steel block and thermal fatigue property of 4Cr5MoSiV1H steel were improved because the elements segregation and eutectic carbides was eliminated through the high temperature homogenizing and solution.


Wear ◽  
2011 ◽  
Vol 270 (7-8) ◽  
pp. 492-498 ◽  
Author(s):  
Chun Guo ◽  
Jiansong Zhou ◽  
Jianmin Chen ◽  
Jierong Zhao ◽  
Youjun Yu ◽  
...  

Author(s):  
Wei Jiang ◽  
Shuqi Wang ◽  
Lan Wang

H13 steel is prone to insufficient high temperature wear resistance due to thermal wear under high temperature conditions. To improve high temperature wear resistance of H13 steel, the maraging steel coating with low-nickel was successfully prepared owing to excellent thermal stability. Sliding wear tests at 400, 500 and 600 °C were carried out for the laser cladding coating and H13 steel to comparatively investigate their high temperature wear performance and mechanism. The microstructure, phases, hardness and thermal stability of the maraging steel coating were also studied. The results showed that the maraging steel coating possessed excellent high temperature wear resistance and effectively improved the high temperature wear resistance of H13 steel by laser cladding. The superior thermal stability of maraging steel played an important role in improving its high temperature wear resistance.


Applied laser ◽  
2013 ◽  
Vol 33 (4) ◽  
pp. 370-375
Author(s):  
徐卫仙 Xu Weixian ◽  
张群莉 Zhang Qunli ◽  
姚建华 Yao Jianhua

2019 ◽  
Vol 56 (14) ◽  
pp. 141403
Author(s):  
余廷 Ting Yu ◽  
张子翔 Zixiang Zhang ◽  
饶锡新 Xixin Rao ◽  
陈杰 Jie Chen

2008 ◽  
Vol 15 (05) ◽  
pp. 641-651
Author(s):  
JIANG XU ◽  
JIE TAO ◽  
CHENZHI ZHUO ◽  
SHUYUN JIANG

In order to improve the high-temperature behaviors of hot work die steel in engineering application, the high-temperature wear and thermal fatigue behavior of brush plating Ni/nano-SiO 2 composite coating have been investigated. The microstructure of Ni/nano-SiO 2 composite coating has been analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). TEM observation of Ni/nano-SiO 2 composite coating has shown that the added SiO 2 particle with an average size of about 20 nm is uniformly distributed in Nickel matrix. The high-temperature wear behavior of Ni/nano-SiO 2 composite coating has been investigated using a ball-on–block test rig. The results from the high-temperature wear behaviors studies indicate that the steady-state friction coefficient and the specific wear rate of Ni/nano-SiO 2 composite coating are lower than that of Cr 12 MoNi steel. The thermal fatigue tests were fulfilled by heating and quenching in water at a cycle period of 2 min. The results of thermal fatigue testing show that brush plating Ni/nano-SiO 2 composite coating can improve thermal fatigue resistance as compared to the Cr 12 MoNi hot rolling tool steel.


2013 ◽  
Vol 42 (8) ◽  
pp. 1547-1551 ◽  
Author(s):  
Guo Chun ◽  
Chen Jianmin ◽  
Yao Rungang ◽  
Zhou Jiansong

Author(s):  
Oleksandr M. Kostin ◽  
Anastasiia Yu. Butenko ◽  
Volodymyr O. Martynenko

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