Acta Metall Sin  1993, Vol. 29 Issue (4): 37-40    DOI:

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CREEP CRACK PROPAGATION IN CONVENTIONAL CAST AND DIRECTIONALLY SOLIDIFIED SUPERALLOY RENE 80

SUN Jian;ZHANG Yuanhu;HU Gengxiang Shanghai Jiaotong University lecturer; Department of Materials Science;Shanghai Jiaotong University;Shanghai 200030

SUN Jian;ZHANG Yuanhu;HU Gengxiang Shanghai Jiaotong University lecturer; Department of Materials Science;Shanghai Jiaotong University;Shanghai 200030. CREEP CRACK PROPAGATION IN CONVENTIONAL CAST AND DIRECTIONALLY SOLIDIFIED SUPERALLOY RENE 80. Acta Metall Sin, 1993, 29(4): 37-40.

Abstract References Related Articles Recommended Metrics Download:  PDF(760KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The creep crack propagation in superalloy Rene80 of two differentmicrostructures, i.e., equiaxed grain structure by conventional casting and columnar grain bydirectional solidification, was investigated under static load at 1123 K. The creep crackgrowth rate, dα/dt, seems to be correlated with the stress intensity factor, K. The creep crackgrowth rate in the directionally solidified alloy is lower than that in the conventional castalloy, owing to the elimination of transverse grain boundaries. The effect of microstructure oncreep crack propagation has also been discussed. Key words:  Superalloy René 80      directional solidification      stress intensity factor      creep crack propagation      Received:  18 April 1993      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/Y1993/V29/I4/37 1 Versnyder F L, Shank M E. Mater Sci Eng, 1970; 6: 213 2 Delorenzi H G, Shih C F. Int J Fract, 1983; 21: 195 3 Bensussan P L, Jablonski D A, Pelloux R M. Metall Trans, 1984; 15A: 107Y [1] 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. [2] 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. [3] SU Zhenqi, ZHANG Congjiang, YUAN Xiaotan, HU Xingjin, LU Keke, REN Weili, DING Biao, ZHENG Tianxiang, SHEN Zhe, ZHONG Yunbo, WANG Hui, WANG Qiuliang. Formation and Evolution of Stray Grains on Remelted Interface in the Seed Crystal During the Directional Solidification of Single-Crystal Superalloys Assisted by Vertical Static Magnetic Field[J]. 金属学报, 2023, 59(12): 1568-1580. [4] LI Yanqiang, ZHAO Jiuzhou, JIANG Hongxiang, HE Jie. Microstructure Formation in Directionally Solidified Pb-Al Alloy[J]. 金属学报, 2022, 58(8): 1072-1082. [5] CHEN Ruirun, CHEN Dezhi, WANG Qi, WANG Shu, ZHOU Zhecheng, DING Hongsheng, FU Hengzhi. Research Progress on Nb-Si Base Ultrahigh Temperature Alloys and Directional Solidification Technology[J]. 金属学报, 2021, 57(9): 1141-1154. [6] ZHANG Xiaoli, FENG Li, YANG Yanhong, ZHOU Yizhou, LIU Guiqun. Influence of Secondary Orientation on Competitive Grain Growth of Nickel-Based Superalloys[J]. 金属学报, 2020, 56(7): 969-978. [7] ZHANG Jian,WANG Li,WANG Dong,XIE Guang,LU Yuzhang,SHEN Jian,LOU Langhong. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2019, 55(9): 1077-1094. [8] XU Qingyan,YANG Cong,YAN Xuewei,LIU Baicheng. Development of Numerical Simulation in Nickel-Based Superalloy Turbine Blade Directional Solidification[J]. 金属学报, 2019, 55(9): 1175-1184. [9] Hui FANG,Hua XUE,Qianyu TANG,Qingyu ZHANG,Shiyan PAN,Mingfang ZHU. Dendrite Coarsening and Secondary Arm Migration in the Mushy Zone During Directional Solidification:[J]. 金属学报, 2019, 55(5): 664-672. [10] Yan YANG, Guangyu YANG, Shifeng LUO, Lei XIAO, Wanqi JIE. Microstructures and Growth Orientation of Directionally Solidification Mg-14.61Gd Alloy[J]. 金属学报, 2019, 55(2): 202-212. [11] JIN Hao, JIA Qing, LIU Ronghua, XIAN Quangang, CUI Yuyou, XU Dongsheng, YANG Rui. Seed Preparation and Orientation Control of PST Crystals of Ti-47Al Alloy[J]. 金属学报, 2019, 55(12): 1519-1526. [12] Huijun KANG, Jinling LI, Tongmin WANG, Jingjie GUO. Growth Behavior of Primary Intermetallic Phases and Mechanical Properties for Directionally Solidified Al-Mn-Be Alloy[J]. 金属学报, 2018, 54(5): 809-823. [13] Yanqing SU, Tong LIU, Xinzhong LI, Ruirun CHEN, Jingjie GUO, Hengzhi FU. The Evolution of Seeding Technique for the Lamellar Orientation Controlling of γ-TiAl Based Alloys[J]. 金属学报, 2018, 54(5): 647-656. [14] Yuan HOU, Zhongming REN, Jiang WANG, Zhenqiang ZHANG, Xia LI. Effect of Longitudinal Static Magnetic Field on the Columnar to Equiaxed Transition in Directionally Solidified GCr15 Bearing Steel[J]. 金属学报, 2018, 54(5): 801-808. [15] Yanxiang LI, Xiaobang LIU. Directionally Solidified Porous Metals: A Review[J]. 金属学报, 2018, 54(5): 727-741. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed