TY - JOUR
T1 - Strengthening of Inconel 600 alloy with electric current stressing
AU - Li, Wen Jung
AU - Lin, Kwang Lung
N1 - Funding Information:
The support of this work from the Ministry of Science and Technology of Republic of China (Taiwan) under MOST 107-2221-E-006-015-MY3 is grateful acknowledged.
Publisher Copyright:
© 2022 Acta Materialia Inc.
PY - 2023/3
Y1 - 2023/3
N2 - The Inconel 600 alloy was investigated for the possibility of monitoring mechanical property, Vickers hardness, with electric current stressing. A parameter tD/N combined of current stressing duration tD and current stressing cycle N was applied as the control factor. With the appropriate control of the combined parameter and current stressing density of 7 × 103 A/cm2, a maximum enhancement of microhardness by 19.5% comparing with heat treated benchmark specimen was achieved. The study investigated the strengthening mechanism from various aspects including grain orientation, grain size, phase transformation, precipitation, and dislocation with EBSD, XRD, and HRTEM. A maximum dislocation density of 5 × 1016 m−2 in the 111 direction was obtained at ln(tD/N) of -0.69. The microhardness enhancement was ascribed to strain hardening by dislocation formation upon current stressing.
AB - The Inconel 600 alloy was investigated for the possibility of monitoring mechanical property, Vickers hardness, with electric current stressing. A parameter tD/N combined of current stressing duration tD and current stressing cycle N was applied as the control factor. With the appropriate control of the combined parameter and current stressing density of 7 × 103 A/cm2, a maximum enhancement of microhardness by 19.5% comparing with heat treated benchmark specimen was achieved. The study investigated the strengthening mechanism from various aspects including grain orientation, grain size, phase transformation, precipitation, and dislocation with EBSD, XRD, and HRTEM. A maximum dislocation density of 5 × 1016 m−2 in the 111 direction was obtained at ln(tD/N) of -0.69. The microhardness enhancement was ascribed to strain hardening by dislocation formation upon current stressing.
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U2 - 10.1016/j.mtla.2022.101666
DO - 10.1016/j.mtla.2022.101666
M3 - Article
AN - SCOPUS:85145253365
SN - 2589-1529
VL - 27
JO - Materialia
JF - Materialia
M1 - 101666
ER -