四种镍基高温合金的热腐蚀行为

中国腐蚀与防护学报

1984, Vol. 4

Issue (2): 143-152

研究报告

本期目录 | 过刊浏览

四种镍基高温合金的热腐蚀行为

王嘉敏;董佩环

洛阳船舶材料研究所;洛阳船舶材料研究所

A STUDY OF HOT CORROSION OF FOUR Ni-BASE SUPERALLOYS

Wang Jiamin Dong Peihuan(Luoyang Ship Material Research Institute; Luoyang; China)

全文: PDF(2704 KB)

摘要: 采用涂盐热腐蚀试验方法研究了M-38等四种镍基合金(二种铸造:M-38和K_3;二种板材:GH-30和GH-128)在900℃下的热腐蚀。用重量变化和渗透深度评价合金的热腐蚀抗力;用金相、X射线衍射、扫描电镜(配EDS分析)和电子探针分析鉴别腐蚀层结构和产物。结果说明:M-38和GH-30合金热腐蚀过程可分三个阶段—孕育期、扩展期和加速期;GH-128和K_3合金分二个阶段—孕育期和加速期。含有较高铝和钨的GH-128和K_3合金的热腐蚀受到酸性熔融控制,而M-38和GH-30合金受“沿晶界硫化—氧化—开裂—剥落过程”控制。晶粒细、成份均匀的热轧/板材渗透轻微;反之,晶粒粗、成份呈枝晶偏析的铸造合金渗透严重,必须采用失重和渗透深度来评价热腐蚀抗力。

Abstract：The kineties on hot corrosion of four Ni-base superalloys, two sheets(GH-30 and GH-128 ) and two cast alloys ( M-38 and K_3 ) , were studied at900℃ by salt coat method. Results showed that hot corrosion process for the more resistant M-38 and GH-30 alloys can be divided into three stages—ineubation, extension and acceleration period, while that of the less resistant GH-128 and K_3 alloys can be divided into two stages—incubation and acceleration period. GH-128 and K_3 alloys have high Mo and W contents, so that hot corrosion is governed by acid fusion. The hot corrosion of M-38 and GH-30 alloys,on the other hand, is governed by a sulfidation—oxidation processes alonggrain boundaries. The penetration of the sheet having fine grain and homogenous composition is less serious than that of the cast alloys which are coarsegrained with a high extent of segregation. Both weight loss and depth of penetration must he employed for the evaluation of hot corrosion resistance of the latter alloys.

收稿日期: 1984-04-25

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引用本文:

王嘉敏;董佩环. 四种镍基高温合金的热腐蚀行为[J]. 中国腐蚀与防护学报, 1984, 4(2): 143-152.
. A STUDY OF HOT CORROSION OF FOUR Ni-BASE SUPERALLOYS. J Chin Soc Corr Pro, 1984, 4(2): 143-152.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1984/V4/I2/143

[1] 根本力男,防食技术,31,(9) 、597～609(1982)
[2] Stringer, J.High Temperasure Corrosion of Aerospace Alloys, AGARD-200, 1～602 (1975)
[3] Stringer, J. Hot Corrosion of High Temperature Alloys, Edited by Z. A. Poroulis and F. S. Pettit, Proccedings of the Symposium on Properties of High Temperature Alloys with Emphasis on Environmental effects,Published by the Electro Chemical Society INC, 71～1, 513～556(1977)
[4] 川と正博,铁と钢、65,(7) ,811～819(1979)
[5] 王嘉敏:国外舰船-材料类,(8) ,1～31(1979)
[6] Demo, J.J. Hot Ash Corrsion of High Temperature Equipment, Corrosion/78, Paper, 98, 1～18(1978)
[7] Fadconer, P.P. NASA-CR-159,614, 1～44(1979)
[8] Pettit.F.S. AD/A-072645, 1～145(1979)
[9] Erdos,E.Denzle,E. On the Oxidation and Hot Corrosion of IN-713LC, IN-738LC and IN-939, International Conference on the Behaviour of High Temperature Alloys in Aggressivc Environments, Paper, 26, (1～9) (1979)
[10] 董佩环、王嘉敏:涂盐热腐蚀试验方法,洛阳舰船材料研究所资料,(1981)
[11] 周洪贤,王嘉敏,M-38和K_3及其涂层的抗氧化性能研究,洛阳舰船材料研究所资料,(1981)
[12] Fryburg,G.C.,et al.,Sduties of Four Nickel-base Superalloys,同[3] , 585～594 (1979)
[13] 王嘉敏等,六种高温合金循环氧化动力学,(未发表)
[14] Fryburg,G.C.,et al.,Journal of the Electrochemical Society,129,(3) , 571～585 (1982)

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