scholarly journals The thermal fatigue resistance of vermicular cast iron coupling with H13 steel units by cast-in process

2010 ◽  
Vol 31 (7) ◽  
pp. 3442-3448 ◽  
Author(s):  
Chengtao Wang ◽  
Hong Zhou ◽  
Peng Yu Lin ◽  
Na Sun ◽  
Qingchun Guo ◽  
...  
2010 ◽  
Vol 97-101 ◽  
pp. 1321-1327 ◽  
Author(s):  
Xiao Ping Zhou ◽  
Xin Bin Hu ◽  
Yi Sheng Xu

The microstructure and properties of ternary boride ceramic coating prepared by reactive flame spraying on surface of H13 steel are studied as well as the microstructures, microhardness, wear resistance and thermal fatigue resistance of the coating. The results show that the Mo2FeB2 cermet coating by reactive flame spraying has good wear resistance and thermal fatigue resistance and its microhardness can even reach 1200 HV.


2014 ◽  
Vol 55 ◽  
pp. 597-604 ◽  
Author(s):  
Dalong Cong ◽  
Hong Zhou ◽  
Zhenan Ren ◽  
Zhihui Zhang ◽  
Haifeng Zhang ◽  
...  

2011 ◽  
Vol 291-294 ◽  
pp. 1405-1411
Author(s):  
Tong Xin ◽  
Zhou Hong ◽  
Liu Min

The past studies indicated that thermal fatigue resistance of cast irons could be improved by partly laser melting treatment. However the only disadvantage of this technology is that the enhancement of thermal fatigue resistance would be limited because of the fixed chemical composition of sample matrix. For this purpose, the laser surface alloying of CrNi was selected for changing both the compositions and the microstructures of laser treated zone, and the effects of alloy powder compositions on thermal fatigue behavior were also investigated in this paper. The results indicate that the alloy elements distribute homogeneously, and their contents increase markedly in the non-smooth unit on the alloyed layer. The non-smooth unit is strengthened further compared with laser melting treatment. Thermal fatigue resistance of cast iron is enhanced evidently by laser surface alloying of CrNi powders, and for all samples tested, those treated with 25%Cr-75%Ni powders have the best thermal fatigue resistance.


Sign in / Sign up

Export Citation Format

Share Document