Microstructure Evolution of TC16 Titanium Alloy for Producing Aerospace Fasteners During Cold Compression

doi:10.12442/j.issn.1002-185X.20200935

Home > Archive>Volume 51, Issue 2, 2022 >386-391. DOI:10.12442/j.issn.1002-185X.20200935

Microstructure Evolution of TC16 Titanium Alloy for Producing Aerospace Fasteners During Cold Compression
DOI:
                        10.12442/j.issn.1002-185X.20200935
                    
Author:
                        Yang Wanbo1Yang Wanbo
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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Huo Yuanming1Huo Yuanming
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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He Tao1He Tao
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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Xue Yong2Xue Yong
School of Material Science and Engineering, North University of China, Taiyuan 030051, China.
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Hu Yujia1Hu Yujia
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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Shen Menglan1Shen Menglan
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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Affiliation:1.School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China;2.School of Material Science and Engineering, North University of China, Taiyuan 030051, China.
Clc Number:
Fund Project:National Natural Science Foundation of China (51805314)

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Abstract:

To understand the deformation mechanism and microstructure evolution of TC16 titanium alloy during cold heading, cold compression tests were conducted using a Gleeble 3800 thermo-mechanical simulator. The effects of strains (0.2, 0.4, 0.6, 0.8 and 1.0) and strain rates (0.1, 1.0 and 10.0 s^-1) on the deformation behavior and microstructure evolution of the alloys were investigated. Results show that larger true strain and higher strain rate are prone to cause local grain coarsening and adiabatic shear bands within the material. True strain should be selected in the range from 0.2 to 0.6. Uniform structure and fine grains that are suitable for cold forming can be achieved at a strain rate of 1.0 s^-1. The deformation softening observed during cold deformation is caused mainly by adiabatic temperature rise and local grain coarsening at larger true strains and higher strain rates.

Key words:TC16 titanium alloy;microstructure evolution;cold compression

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[Yang Wanbo, Huo Yuanming, He Tao, Xue Yong, Hu Yujia, Shen Menglan. Microstructure Evolution of TC16 Titanium Alloy for Producing Aerospace Fasteners During Cold Compression[J]. Rare Metal Materials and Engineering,2022,51(2):386~391.]
DOI：10.12442/j. issn.1002-185X.20200935

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Received:December 03,2020
Revised:January 12,2022
Adopted:February 04,2021
Online: March 03,2022
Published: February 28,2022

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