...Yuhui Huang; Fu-Zhen Xuan The effect of shot peening on oxidation behavior of P92 steel was investigated under the steam environment of 600 °C. Evolution of microstructure, hardness and residual stress under different air pressure of shot peening were discussed. On the shot peened surface, a stable...

...Fujio Abe The influence of oxidation on the estimation of long-term creep rupture strength is investigated for 2.25% chromium (Cr)–1% molybdenum (Mo) steel specified as JIS STBA 24, JIS SCMV 4 NT, and ASTM A542/A542M by the Larson–Miller method using creep rupture data in the National Institute...

...N. S. Cheruvu; R. Wei; M. R. Govindaraju; D. W. Gandy Cyclic oxidation behavior and microstructural degradation of nanocrystalline Ni–20Cr–xAl (where x = 4 wt % , 7 wt % , and 10 wt % ) coatings have been investigated. The coatings were deposited on Haynes 230 samples using a magnetron sputtering...

...A. Al-Mazrouee; R. K. Singh Raman Accelerated creep rupture testing is used to aid in assessing the remaining life for components such as pipes and tubes used in high temperature plants. At the high temperatures, oxide growth can affect the creep results by diameter reduction and, thus, increase...

... microscopy, and energy dispersive spectroscopy are conducted on each specimen before and after VES testing to evaluate the thermal stability of the coating and the severity of the thermal damage imposed. The mechanisms of damage are investigated, including void formation and micropit growth, oxidation...

... examples are discussed. (i) The oxidation behavior of 9% Cr steels in simulated combustion gases: The effects of O 2 and H 2 O content on the oxidation behavior of 9% Cr steels in the temperature range 600 - 800 ° C showed that in dry oxygen a protective scale was formed with an oxidation rate controlled...

... technologies. The generalized FRI crack growth rate (CGR) formulation was proposed, based on a deformation/oxidation mechanism and a theoretical crack tip strain rate equation derived by the authors. The effects of crack tip oxidation and crack tip mechanics and of their interactions on crack growth can...

... test installing both steel tubes in service along with comparative materials in the tertiary superheater and secondary reheater of a 156 MW utility power boiler has been conducted since April 1993. The tubes were removed to confirm their material properties and corrosion/steam oxidation behaviors after...

...Yong-Sun Yi, Research Associate; Yutaka Watanabe, Associate Professor,; Tatsuo Kondo, Professor; Hiroshi Kimura, Assistant Manager; Minoru Sato, Manager Oxidation kinetics of recently developed ferritic heat-resistant steels, HCM12A, NF616, and HCM2S, were investigated in a superheated steam...

...Levi O. Bueno; Luiz Marino The oxide-scale growth and metal loss kinetics during oxidation in air of 2 1/4 Cr-1 Mo steel were studied at 600, 700, and 800°C for times up to 1000 h, with cylindrical specimens similar to creep test pieces. The scale thickness (x) was observed to exhibit a gradually...

...Luiz Marino; Levi O. Bueno The oxidation behavior of 2 1 4 Cr - 1 Mo steel was studied at 600, 700 and 800°C for a sequence of times up to 1000 h, using cylindrical specimens of the material, similar to testpieces used in high-temperature creep testing. The various samples exposed to different...