Acta Metall Sin  1990, Vol. 26 Issue (5): 44-49    DOI:

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CREEP AND FRACTURE FEATURE OF SUPERALLOYS WITH DIFFERENT BOUNDARY MICROSTRUCTURES IN SULPHUR CONTAMINATED ENVIRONMENT

ZHANG Yuanhu;XIANG Yi;SUN Jian;HU Gengxiang;LI Tiefan Shanghai Jiaotong University Institute of Metallic Corrosion and protection Academia Sinica; Shenyang

ZHANG Yuanhu;XIANG Yi;SUN Jian;HU Gengxiang;LI Tiefan Shanghai Jiaotong University Institute of Metallic Corrosion and protection Academia Sinica; Shenyang. CREEP AND FRACTURE FEATURE OF SUPERALLOYS WITH DIFFERENT BOUNDARY MICROSTRUCTURES IN SULPHUR CONTAMINATED ENVIRONMENT. Acta Metall Sin, 1990, 26(5): 44-49.

Abstract References Related Articles Recommended Metrics Download:  PDF(1496KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Studies by SEM and EDAX were carried out on the high temperaturecreep and fracture behaviour undergone tests in air or in SO_2 contaminated enviro-nment for both Fe-base wrought superalloy GH302 and Ni-base superalloy Rene 80,with two different microstructures: i. e., flat and zig-zag grain boundary or equi-exed and Columnar grain boundary respectively. Although the creep rupture strenqthof the superalloy GH302 of zig-zag GB was remarkably superior to that of flat GBin air, the properties of both dropped suddenly in 10% SO_2 contaminated air. Thecreep rupture properties of the directional solidification superalloy Rene 80 weremuch better than that of the conventionally casted alloy in air, and also remainedthe former ones in SO_2 contaminated air. Owing to the interaction between creepand sulphidation, the damage mechanism seems to be that the creep cracking ispropagated intergranularly by suffering sulphidation-oxidation corrosion under stress,and formation of a low melting point NiN_3S_2 eutectic leads to premature failure ofthe alloy. Key words:  superalloy      grain boundary      sulphidation      oxidation      creep rupture      Received:  18 May 1990      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/Y1990/V26/I5/44 1 徐志超,叶锐曾,王迪,葛占英,张润岗,俞同丰,李力加.北京钢铁学院学报,1982;Suppl.Ⅱ:78 2 Koul A K, Thamburay R. Metall Trans, 1985; 16A: 17 3 黄颂惠,林栋梁,文矛.航空材料,1987;(5) :8 4 孙传琪,李其娟,林淑熙,吴昌新.航空材料,1987;(7) :1 5 Hu Gengxiang, Zhou Lang, Zhang Yuanhu, Li Ming. Mater Sci Eng, 1988; 102: 237 [1] LI Jiarong, DONG Jianmin, HAN Mei, LIU Shizhong. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. 金属学报, 2023, 59(9): 1201-1208. [2] GONG Shengkai, LIU Yuan, GENG Lilun, RU Yi, ZHAO Wenyue, PEI Yanling, LI Shusuo. Advances in the Regulation and Interfacial Behavior of Coatings/Superalloys[J]. 金属学报, 2023, 59(9): 1097-1108. [3] FENG Qiang, LU Song, LI Wendao, ZHANG Xiaorui, LI Longfei, ZOU Min, ZHUANG Xiaoli. Recent Progress in Alloy Design and Creep Mechanism of γ'-Strengthened Co-Based Superalloys[J]. 金属学报, 2023, 59(9): 1125-1143. [4] BI Zhongnan, QIN Hailong, LIU Pei, SHI Songyi, XIE Jinli, ZHANG Ji. Research Progress Regarding Quantitative Characterization and Control Technology of Residual Stress in Superalloy Forgings[J]. 金属学报, 2023, 59(9): 1144-1158. [5] ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing. Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing[J]. 金属学报, 2023, 59(9): 1265-1278. [6] MA Dexin, ZHAO Yunxing, XU Weitai, WANG Fu. Effect of Gravity on Directionally Solidified Structure of Superalloys[J]. 金属学报, 2023, 59(9): 1279-1290. [7] CHEN Jia, GUO Min, YANG Min, LIU Lin, ZHANG Jun. Effects of W Concentration on Creep Microstructure and Property of Novel Co-Based Superalloys[J]. 金属学报, 2023, 59(9): 1209-1220. [8] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229. [9] JIANG He, NAI Qiliang, XU Chao, ZHAO Xiao, YAO Zhihao, DONG Jianxin. Sensitive Temperature and Reason of Rapid Fatigue Crack Propagation in Nickel-Based Superalloy[J]. 金属学报, 2023, 59(9): 1190-1200. [10] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. Research Progress on Surface Impact Strengthening Mechanisms and Application of Nickel-Based Superalloys[J]. 金属学报, 2023, 59(9): 1173-1189. [11] BAI Jiaming, LIU Jiantao, JIA Jian, ZHANG Yiwen. Creep Properties and Solute Atomic Segregation of High-W and High-Ta Type Powder Metallurgy Superalloy[J]. 金属学报, 2023, 59(9): 1230-1242. [12] ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1109-1124. [13] LU Nannan, GUO Yimo, YANG Shulin, LIANG Jingjing, ZHOU Yizhou, SUN Xiaofeng, LI Jinguo. Formation Mechanisms of Hot Cracks in Laser Additive Repairing Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1243-1252. [14] MU Yahang, ZHANG Xue, CHEN Ziming, SUN Xiaofeng, LIANG Jingjing, LI Jinguo, ZHOU Yizhou. Modeling of Crack Susceptibility of Ni-Based Superalloy for Additive Manufacturing via Thermodynamic Calculation and Machine Learning[J]. 金属学报, 2023, 59(8): 1075-1086. [15] CHANG Songtao, ZHANG Fang, SHA Yuhui, ZUO Liang. Recrystallization Texture Competition Mediated by Segregation Element in Body-Centered Cubic Metals[J]. 金属学报, 2023, 59(8): 1065-1074. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed