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Abstract The structure and the hot-corrosion resiance of cast nickel-base superalloy M38 irradiated by CO_2 laser beam of 1.3kW output have been examinated by microscopy, SEM, EMPA, X—ray diffraction analysis and potential measurements in contrast with those unirradiated. The hot corrosion tests were carried out in the crucible with saltmixture of 75% Na_2SO_4 and 25% NaCl at 900℃ for 15hr, 35hr, 55hr, 80hrand 95.5h, respectively. The results show that the remelted-solidifying surface layer irradiated by laser besm may be regarded as an integrated effective coat due to its much better corrosion resistance(particularly, no obvious grain boundary penetraion corrosion) and the firm bonding between the irradiated urface layer and the base material.
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Received: 25 February 1986
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Cite this article:
Wang MaoCai Jin Zhujing and Wu Weitao (Institute of Metal Corrosionand Protection Research; Academia Sinica). STRUCTURE AND HOT-CORROSION RESISTANCE PROPERTIES OF M38 SUPERALLOY IN LASER-IRRADIATED ZONES. J Chin Soc Corr Pro, 1986, 6(1): 65-71.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1986/V6/I1/65
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[1] 银耀德,吕曼其,张万贞,中国腐蚀与防护学报,4(1) ,70(1984)
[2] 满永发,刘嘉乐,张匀,赵洪恩,中国腐蚀与防护学报,3(4) ,237(1983)
[3] 吴维(山文),Rahmel.A,Schorr.M,中国腐蚀与防护学报,4(2) ,79(1984)
[4] 王嘉敏,董佩环,中国腐蚀与防护学报,4(2) ,143(1984)
[5] Erdos, E., Alsorfer, H., Penzler, E., Werkstoffe und Korrosion33,37 3 (1982)
[6] Bomstein, N. S., Smeggil, J. G., Corrosion of Metals Processed by directed energy beams, Edited by C. R. Clayton et al., A publicationof AIME, 147 (1982)
[7] 王景韫,常春城,朱鸿德,M38合金的相分析,金情,77～013
[8] Huber, P; Gessinger, G. H., Materials and Coatings to resist high temperature corrosion, Edited by(?)O. R. Hotmes and A. Rahmet, 71 (1983)
[9] Restall, J. E., The develop of gas turbine materials, Edited by G. W., Meethen. Applied Science Pubtishers L. T. D. London, 259(1981) |
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