High-temperature oxidation behaviour of high chromium superalloys additively manufactured by conventional or extreme high-speed laser metal deposition

2020 ◽  
Vol 176 ◽  
pp. 108922
Author(s):  
Kaiming Wang ◽  
Dong Du ◽  
Guan Liu ◽  
Ze Pu ◽  
Baohua Chang ◽  
...  
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Temperature Oxidation ◽  
Metal Deposition ◽  
Oxidation Behaviour ◽  
Laser Metal Deposition ◽  
Temperature Oxidation ◽  
High Chromium

High Temperature Oxidation Investigation of Hot Roll Material with High-Speed Steel

2015 ◽  
Vol 1095 ◽  
pp. 130-134 ◽  
Author(s):  
Liang Hao ◽  
Zheng Yi Jiang ◽  
Zhi Xin Chen ◽  
Dong Bin Wei ◽  
Xia Wei Cheng ◽  
...  
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Temperature Oxidation ◽  
High Speed Steel ◽  
Work Roll ◽  
Oxidation Behaviour ◽  
Rolled Strip ◽  
Temperature Oxidation ◽  
The Matrix ◽  
Work Rolls

High-speed steels are successfully manufactured to make work rolls in hot rolling steel mills. An understanding of their oxidation behaviour is crucial to the degradation of work rolls and the surface quality of rolled strip. In this paper, the high temperature oxidation behaviour of a work roll with high-speed steel material was investigated under isothermal conditions from 550 to 750 °C for 30 min in 20% humid air. The results indicate that molybdenum-rich carbides M2C are oxidised and protrude out of the surface, vanadium-rich carbides MC and iron and chromium-rich carbides are easily identified and less influenced, but the oxides grown on the matrix are relatively even at 550 and 600 °C. However, at higher temperature, MC carbides are severely oxidised and extend to their nearby areas, whereas M7C3zones can still be recognised but with more small particles grown on them.

High temperature oxidation behaviour of Ti2AlC ceramic at 1200°C

2012 ◽  
Vol 29 (3) ◽  
pp. 205-209 ◽  
Author(s):  
G.M. Song ◽  
V. Schnabel ◽  
C. Kwakernaak ◽  
S. van der Zwaag ◽  
J.M. Schneider ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Oxidation Behaviour ◽  
Temperature Oxidation
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