Acta Metall Sin  1995, Vol. 31 Issue (24): 527-534    DOI:

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HIGH TEMPERATURE OXIDATION PERFORMANCE OF SUPERALLOY M41

LI Tiefan; HU Wusheng; SHEN Jianian(State Key Laboratory of Corrosion Science; Institute of Corrosion and Prolection of Metals; Chinese Academy of Sciences; Shenyang 110015)

LI Tiefan; HU Wusheng; SHEN Jianian(State Key Laboratory of Corrosion Science; Institute of Corrosion and Prolection of Metals; Chinese Academy of Sciences; Shenyang 110015). HIGH TEMPERATURE OXIDATION PERFORMANCE OF SUPERALLOY M41. Acta Metall Sin, 1995, 31(24): 527-534.

Abstract References Related Articles Recommended Metrics Download:  PDF(614KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Compared with alloy M17 and K3, high temperature oxidation performance of low segregation cast nickel base superalloy M41 has been investigated by means of isothermial and cyclic oxidation, XRD, SEM, EDXA and X-ray element maps. Results show that oxidation rate of the alloy M41 accelerates with the rise of temperature, but is lower than that of the alloy K3. Scale adherance of the alloy M41 is better than that of the alloy K3 and M17, so its cyclic oxidation performance is superior to that of alloy M17. Oxidation kinetics of alloy M41 obviously deviate from parabolic law, because votilization of CrO3is severe above 1000℃ .The higher temperature is, the more severe volatilization is, so the more obvious deviation is. Volatilization of CrO3 is minor below 1000℃ ,so deviation is small. In transient oxidation stage, the alloy M41 primarily forms oxides of Ni and Cr, and in steady oxidation stage, scale consists mainly of a continuous and compact Cr2O3 at the outer layer and a tree root shaped Al2O3 at the inner oxidation layer. The internal oxidation becomes more severe with the rise of temperature and the prolongation of time.The nearer it is from the outer oxide layer/matrix interface, the more and smaller the particles of internal oxidation are. This article syntheticly analyses the results of experiments. Key words:  cast nickel base superalloy      scale adherence      high temperature oxidation performance      internal oxidation      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1995/V31/I24/527 1KofstadP．HighTemperatureCorroston．London:ElsevierAppliedScience,1988:3292BohmG,KahlweitM．ActaMetall,1964;12:6413HOUY,StriingerJ．OxidMet,1992,38:323n [1] PING Faping, HU Qingmiao, YANG Ru. INVESTIGATION ON EFFECTS OF ALLOYING ON OXIDATION RESISTANCE OFγ-TiAl BY USING  FIRST PRINCIPLE[J]. 金属学报, 2013, 29(4): 385-390. [2] LIANG Shuhua; XU Lei; FANG Liang; FAN Zhikang. Microstructure and Antibacterial Properties of Cu--Contained Antibacterial Stainless Steel[J]. 金属学报, 2004, 40(3): 309-313 . [3] NING Yuantao;WEN Fei;ZHAO Huaizhi;DENG Deguo Kunming Institute of Precious Metals. INTERNAL OXIDATION OF Pd-Eu ALLOYS[J]. 金属学报, 1993, 29(9): 65-71. [4] NING Yuantao;LI Yongnian Kunming Institute of Precious Metals. INTERNAL OXIDATION BEHAVIOR OF Pd-40Ag-1M (M=Zr, Y) ALLOYS[J]. 金属学报, 1989, 25(1): 96-103. [5] YANG Rui;LI Dong;WAN Xiaojing Institute of Metal Research; Academia Sinica; Shenyang. PHASE BOUNDARY OF α_2 PRECIPITATION IN Ti-Al-La TERNARY SYSTEM[J]. 金属学报, 1988, 24(4): 288-290. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed