Hydrogen-Induced Intergranular Fracture Behavior Accelerated by Needle-like MC Carbide in IN740H Superalloy

Hydrogen-Induced Intergranular Fracture Behavior Accelerated by Needle-like MC Carbide in IN740H Superalloy

Hydrogen embrittlement of a Ni-based superalloy, IN740H, was evaluated after gas-phase hydrogen pre-charging. Specimens with different grain sizes were prepared to induce different precipitation behavior under annealing treatment; the formation of needle-like MC carbide was found only in a specimen...

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Bibliographic Details
Main Authors: Seung-Yong Lee, Han-Jin Kim, Chang-Ho Ahn, Seung-Wook Baek, Jae-Hyeok Shim, Jin-Yoo Suh
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Hydrogen
Subjects:
Ni-based superalloy
hydrogen embrittlement
tensile property
incoherent twin boundary
carbide morphology
Online Access:https://www.mdpi.com/2673-4141/3/4/30

Internet

https://www.mdpi.com/2673-4141/3/4/30

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