Microstructural evolution and oxidation resistance of T92 boiler tube steel upon long-term supercritical steam test

2017 ◽  
Vol 125 ◽  
pp. 361-366 ◽  
Author(s):  
Kejian Li ◽  
Houyu Ma ◽  
Yinsheng He ◽  
Jungchel Chang ◽  
Si-yeon Bae ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Microstructural Evolution ◽  
Tube Steel ◽  
Boiler Tube ◽  
Boiler Tube Steel

Improving the high-temperature oxidation resistance of ASME-SA213-T11 boiler tube steel by plasma spraying with CNT-reinforced alumina coatings

2018 ◽  
Vol 65 (2) ◽  
pp. 217-223 ◽  
Author(s):  
Rakesh Goyal ◽  
Buta Singh Sidhu ◽  
Vikas Chawla
Keyword(s):  
High Temperature ◽  
Oxidation Resistance ◽  
High Temperature Oxidation ◽  
Composite Coatings ◽  
Tube Steel ◽  
Boiler Tube ◽  
Alumina Coatings ◽  
Temperature Oxidation ◽  
Content Type ◽  
Boiler Tube Steel

Purpose This paper aims to discuss that a conventional Al2O3, 1.5 Wt.% carbon nanotubes (CNTs)-Al2O3, 2 Wt.% CNTs-Al2O3 and 4 Wt.% CNTs-Al2O3 composite coatings were deposited with the help of Plasma spray process. Design/methodology/approach To better understand the effect of CNT reinforcement on oxidation resistance, high-temperature oxidation behaviour of conventional Al2O3, 1.5 Wt.% CNTs-Al2O3, 2 Wt.% CNTs-Al2O3 and 4 Wt.% CNTs-Al2O3 composite coatings at 900°C was compared with the performance of the uncoated ASME-SA213-T11 boiler tube steel substrate. Findings The results showed that the CNT-reinforced alumina coatings exhibited better oxidation resistance and thermal stability than uncoated ASME-SA213-T11 boiler tube steel. The coated steel substrates had a lower mass gain rate than the substrate after different oxidation times. Originality/value Limited literature is available where the CNT have been reinforced into the composite alloy powders and has been thermally spray-deposited for various surface engineering applications. This research showed that with the increase in the percentage of CNTs into the alloy powder mixture, there is a significant reduction in weight gain and hence higher resistance to oxidation.

Thermal Fatigue Behavior of Boiler Tube Steel

2003 ◽  
Vol 2003.1 (0) ◽  
pp. 155-156
Author(s):  
Shingo AOI ◽  
Ryuichiro EBARA ◽  
Takashi NISHIMURA ◽  
Hiroyuki TOKUNAGA
Keyword(s):  
Thermal Fatigue ◽  
Fatigue Behavior ◽  
Tube Steel ◽  
Boiler Tube ◽  
Boiler Tube Steel ◽  
Thermal Fatigue Behavior
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