Deformation Modes in the Single-Crystal Nickel-Based Superalloy CMSX-4 During Compressive Deformation at 1000 °C

被引：4
|
作者：
Zhang, P. [1 ]
Yuan, Y. [1 ]
Li, J. [2 ]
Yan, J. B. [1 ]
Zhang, H. [3 ]
Zhao, X. B. [4 ]
Shi, X. B. [5 ]
Gu, Y. F. [1 ]
机构：
[1] Xian Thermal Power Res Inst Co Ltd, 136 Xingqing Rd, Xian 710032, Peoples R China
[2] Xi An Jiao Tong Univ, Instrumental Anal Ctr, 28 Xianning West Rd, Xian 710049, Peoples R China
[3] Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
[4] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
[5] Xian Superalloy Technol Co Ltd, 22 Jingwei Rd, Xian 710201, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2022年 / 53卷 / 02期
关键词：
LOW-STRESS CREEP; NI-BASED SUPERALLOY; HIGH-TEMPERATURE; PLASTIC-DEFORMATION; GAMMA'-PHASE; MECHANISMS; DEPENDENCE; ANISOTROPY; ALLOY; YIELD;
D O I：
10.1007/s11661-021-06572-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
After compressive deformation at 1000 degrees C and a strain rate of 2.5 x 10(-4) s(-1), deformation mechanisms in the [001]-oriented single-crystal nickel-based superalloy CMSX-4 are investigated. We found that besides dislocation climb, microtwinning and three different shearing processes, which separately result in the formation of pairs of a/2(101) dislocations, a(001) superdislocations and isolated superlattice stacking faults, operate simultaneously during plastic deformation, hence providing new insights into understanding the deformation mechanisms in nickel-based superalloys.
引用
收藏
页码：388 / 393
页数：6
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