首页|Creep anisotropy dominated by orientation rotation in Ni-based single crystal superalloys at 750 ℃/750 MPa

Creep anisotropy dominated by orientation rotation in Ni-based single crystal superalloys at 750 ℃/750 MPa

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The creep anisotropy of Ni-based single crystal superalloys was studied at 750 ℃/750 MPa.Transmission electron microscopy(TEM)observations showed that stacking faults and micro-twins were the typical dislocation configurations,which all originated from the activity of {111}<112>slip systems.Then,the orientation rotation caused by the activity of the main {111}<112>slip system would accelerate the spec-imen fracturing in shear fracture mode.Furthermore,the orientation rotation would dominate the creep anisotropy.The orientation rotation would occur during the entire creep process,the greater the degree of rotation,the more severe the asynchrony of rotation,which would result in nonuniform deformation and local stress concentration,and exacerbate the failure of the specimen.

Ni-based single crystal superalloysCreepAnisotropyOrientation rotation

Pengfei Qu、Wenchao Yang、Chen Liu、Jiarun Qin、Qiang Wang、Jun Zhang、Lin Liu

展开 >

State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScience Center for Gas Turbine ProjectSelfinnovation Special Fund Project of Aero Engine Corporation of ChinaKey Research and Development Program of Shaanxi ProvinceResearch Fund of the State Key Laboratory of Solidification Processing(NPU)ChinaInnovation Foundation for Doctor Dissertation of Northwestern Polytechnical University,China

51771148523224105207126352031012P2021-A-Ⅳ-001-001ZZCX-2022-0402023-YBGY-4322021-QZ-03CX2021057

2024

10.1016/j.jmst.2023.10.055

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.186(19)
  • 77