標題: Comparing Cyclic Tension-Compression Effects on CoCrFeMnNi High-Entropy Alloy and Ni-Based Superalloy
作者: Lam, Tu-Ngoc
Chou, You-Shiun
Chang, Yao-Jen
Sui, Tsung-Ruei
Yeh, An-Chou
Harjo, Stefanus
Lee, Soo Yeol
Jain, Jayant
Lai, Bo-Hong
Huang, E-Wen
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: in-situ neutron diffraction;low-cycle fatigue;high entropy alloy;Ni-based superalloy
公開日期: 1-Aug-2019
摘要: An equal-molar CoCrFeMnNi, face-centered-cubic (fcc) high-entropy alloy (HEA) and a nickel-based superalloy are studied using in situ neutron diffraction experiments. With continuous measurements, the evolution of diffraction peaks is collected for microscopic lattice strain analyses. Cyclic hardening and softening are found in both metallic systems. However, as obtained from the diffraction-peak-width evolution, the underneath deformation mechanisms are quite different. The CoCrFeMnNi HEA exhibits distinct lattice strain and microstructure responses under tension-compression cyclic loadings.
URI: http://dx.doi.org/10.3390/cryst9080420
http://hdl.handle.net/11536/152829
ISSN: 2073-4352
DOI: 10.3390/cryst9080420
期刊: CRYSTALS
Volume: 9
Issue: 8
起始頁: 0
結束頁: 0
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