NDLI: Investigation of Work Hardening Behavior of Inconel X-750 Alloy

Content Provider	Springer Nature Link
Author	Hua, Pei Tao Zhang, Wei Hong Sun, Wen Ru Huang, Lin Jie
Copyright Year	2017
Abstract	The constant strain rate uniaxial compression tests were conducted in this paper for studying the work hardening behavior and revealing the underlying microstructure evolution involved in the plastic response of the nickel-based Inconel X-750 alloy. The work hardening rate versus true strain plots of Inconel X-750 alloy resembled that of low-stacking-fault energy (SFE) alloys with distinct four stages. The dislocations were found in the planar arrangements at a strain of 0.1 located at the onset of stage II, and the dislocation density was increased and the planar arrangement configuration was partially destroyed at a strain of 0.36 located in stage III. It was unexpected that deformation twins were observed at a strain of 0.69 located in stage IV although the alloy has been classified into materials with a higher SFE value. The result is different with a similar study, in which the deformation twins were absent in Ni–Cr-based alloy Inconel 625 even when the strain was as high as 0.65. It was deemed that the low level of solution strengthening favored the deformation of matrix and the activation of slip system for twining in Inconel X-750 alloy. Unlike the low-SFE alloys that the twins were always formed at the end of stage I, the higher SFE delayed the twin formation to stage IV for Inconel X-750 alloy. The well-developed planar dislocation configuration gave rise to the stage II with a slightly decreasing rate, the collapse of planar dislocation arrangements caused the occurrence of stage III with an accelerated decreasing rate, and the twin formation led to the stage IV with a nearly constant work hardening rate.
Starting Page	869
Ending Page	877
Page Count	9
File Format	PDF
ISSN	10067191
Journal	Acta Metallurgica Sinica (English Letters)
Volume Number	30
Issue Number	9
e-ISSN	21941289
Language	English
Publisher	The Chinese Society for Metals
Publisher Date	2017-06-30
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Spectroscopy/Spectrometry Tribology, Corrosion and Coatings Organometallic Chemistry Characterization and Evaluation of Materials Work hardening behavior Metallic Materials Planar dislocation arrangement Inconel X-750 alloy Nanotechnology Deformation twins
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Metals and Alloys

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