On the effect of oxide scale stability on the internal nitridation process in high-temperature alloys

2005 ◽  
Vol 96 (7) ◽  
pp. 775-780 ◽  
Author(s):  
Robert Orosz ◽  
Ulrich Krupp ◽  
Hans-Jürgen Christ
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
Internal Nitridation ◽  
Nitridation Process ◽  
High Temperature Alloys

Oxide scale formation on Al containing Ni–Cr-based high temperature alloys during application as flame tube material in recirculation oil burners

2008 ◽  
Vol 59 (5) ◽  
pp. 380-388 ◽  
Author(s):  
H. Ackermann ◽  
G. Teneva-Kosseva ◽  
H. Köhne ◽  
K. Lucka ◽  
S. Richter ◽  
...  
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
Scale Formation ◽  
Tube Material ◽  
Flame Tube ◽  
High Temperature Alloys

Segregation of Refractory Metals at Grain Boundaries in High-Temperature Alloys

2020 ◽  
Vol 2020 (11) ◽  
pp. 1292-1299
Author(s):  
I. M. Razumovskii ◽  
V. I. Razumovskiy ◽  
I. A. Logachev ◽  
A. O. Rodin ◽  
M. I. Razumovsky
Keyword(s):  
High Temperature ◽  
Grain Boundaries ◽  
Refractory Metals ◽  
High Temperature Alloys

scholarly journals Friction and Wear of Oxide Scale Obtained on Pure Titanium after High-Temperature Oxidation

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3764
Author(s):  
Krzysztof Aniołek ◽  
Adrian Barylski ◽  
Marian Kupka
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
High Temperature Oxidation ◽  
Friction And Wear ◽  
High Carbon Steel ◽  
Oxide Films ◽  
Oxidation Temperature ◽  
Temperature Oxidation ◽  
Wear Ratio ◽  
Steel Balls

High-temperature oxidation was performed at temperatures from 600 to 750 °C over a period of 24 h and 72 h. It was shown in the study that the oxide scale became more homogeneous and covered the entire surface as the oxidation temperature increased. After oxidation over a period of 24 h, the hardness of the produced layers increased as the oxidation temperature increased (from 892.4 to 1146.6 kgf/mm2). During oxidation in a longer time variant (72 h), layers with a higher hardness were obtained (1260 kgf/mm2). Studies on friction and wear characteristics of titanium were conducted using couples with ceramic balls (Al2O3, ZrO2) and with high-carbon steel (100Cr6) balls. The oxide films produced at a temperature range of 600–750 °C led to a reduction of the wear ratio value, with the lowest one obtained in tests with the 100Cr6 steel balls. Frictional contact of Al2O3 balls with an oxidized titanium disc resulted in a reduction of the wear ratio, but only for the oxide scales produced at 600 °C (24 h, 72 h) and 650 °C (24 h). For the ZrO2 balls, an increase in the wear ratio was observed, especially when interacting with the oxide films obtained after high-temperature oxidation at 650 °C or higher temperatures. The increase in wear intensity after titanium oxidation was also observed for the 100Cr6 steel balls.

High temperature deformation of oxide scale

2009 ◽  
Vol 51 (2) ◽  
pp. 309-315 ◽  
Author(s):  
Lucía Suárez ◽  
Yvan Houbaert ◽  
Xavier Vanden Eynde ◽  
Rafael Colás
Keyword(s):  
High Temperature ◽  
Oxide Scale ◽  
High Temperature Deformation ◽  
Temperature Deformation
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