Microstructure Evolution of Inconel 617 Alloy During Subzero Treatment

doi:10.12442/j.issn.1002-185X.E20220036

Home > Archive>Volume 52, Issue 4, 2023 >1244-1250. DOI:10.12442/j.issn.1002-185X.E20220036

Microstructure Evolution of Inconel 617 Alloy During Subzero Treatment
DOI:
                        10.12442/j.issn.1002-185X.E20220036
                    
Author:
                        Ji Jinjin1,2,3Ji Jinjin
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;School of Materials Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China
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Wang Yanjiang1,2Wang Yanjiang
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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Yu Lidan1,2Yu Lidan
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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Jia Zhi1,2Jia Zhi
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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Kou Shengzhong1,2Kou Shengzhong
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
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Affiliation:1.School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;3.School of Materials Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China
Clc Number:TG132.3
Fund Project:National Natural Science Foundation of China (52265049); Industrial Support Program for Colleges and Universities in Gansu Province (2022CYZC-26); Lanzhou University of Technology Support Plan for Excellent Young Scholars (CGZH001)

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Abstract:

The relationship of microstructure evolution with subzero treatment time and number of Inconel 617 alloy was studied. The results indicate that subzero treatment has an obvious influence on the microstructure of Inconel 617 alloy. With the increase in subzero treatment time, the grain size decreases. With the increase in subzero treatment number, the grain size increases gradually, and the high stress is retained at the boundaries of the refined grains. The lattice constant varies inversely with the grain size. The simple and complex carbides of MC, M₆C and M₂₃C₆ are precipitated from the samples after subzero treatment, which leads to the accumulation of dislocations. The geometrically necessary dislocation density of the samples increases after subzero treatment for 24 h, and decreases significantly with two times of subzero treatment for 24 h. In addition, after subzero treatment, the rotated cube texture and rotated copper texture transform to brass texture, P texture and goss texture.

Key words:Inconel 617 alloy;subzero treatment;grain refinement;geometrically necessary dislocation;microtexture

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[Ji Jinjin, Wang Yanjiang, Yu Lidan, Jia Zhi, Kou Shengzhong. Microstructure Evolution of Inconel 617 Alloy During Subzero Treatment[J]. Rare Metal Materials and Engineering,2023,52(4):1244~1250.]
DOI：10.12442/j. issn.1002-185X. E20220036

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Received:November 14,2022
Revised:November 23,2022
Adopted:November 25,2022
Online: April 28,2023
Published: April 25,2023

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