Superplastic Deformation of TC6 Alloy

The superplastic tensile tests of TC6 alloy were conducted in the temperature range of 800-900℃ by using the maximum <i>m</i> value superplasticity deformation (Max <i>m</i> SPD) method and the constant strain rate deformation method at the strain rate range of 0.0001-0.1 s&l...

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Main Authors: DING Ling, WANG Zhilu, SUN Qianjiang, CHEN Jian, WANG Gaochao
Format: Article
Language:zho
Published: Journal of Aeronautical Materials 2016-12-01
Series:Journal of Aeronautical Materials
Subjects:
Online Access:http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.6.004
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author DING Ling
WANG Zhilu
SUN Qianjiang
CHEN Jian
WANG Gaochao
author_facet DING Ling
WANG Zhilu
SUN Qianjiang
CHEN Jian
WANG Gaochao
author_sort DING Ling
collection DOAJ
description The superplastic tensile tests of TC6 alloy were conducted in the temperature range of 800-900℃ by using the maximum <i>m</i> value superplasticity deformation (Max <i>m</i> SPD) method and the constant strain rate deformation method at the strain rate range of 0.0001-0.1 s<sup>-1</sup>. The stress-strain curve of the tensile tests was obtained and the microstructure near the fracture were analyzed by metallographic microscope. The result shows that the superplasticity of TC6 alloy is excellent, and the elongation increases first and then decreases with the increase of strain rate or temperature. When the temperature is 850℃ and strain rate is 0.001 s<sup>-1</sup> at constant stain rate tensile tests, the elongation reaches up to 993%. However, the elongation using Max <i>m</i> SPD method at 850℃ is 1353%. It is shown that the material can achieve better superplasticity by using Max <i>m</i> SPD tensile compared to constant stain rate tensile under the same temperature. The superplastic deformation of TC6 alloy can enhance the dynamic recrystallization behavior significantly, the dynamic recrystallization behavior is promoted when strain rate and temperature are increased.
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spelling doaj.art-0d61922d54c94ef08b82ad2bbb3b07292022-12-22T02:38:12ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50531005-50532016-12-01366232810.11868/j.issn.1005-5053.2016.6.00420160604Superplastic Deformation of TC6 AlloyDING Ling0WANG Zhilu1SUN Qianjiang2CHEN Jian3WANG Gaochao4School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China;Aviation Industry Corporation of China, Jiangxi Jing Hang Forging and Casting Co. Ltd, Jingdezhen 333039, Jiangxi, ChinaSchool of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China;School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China;School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China;The superplastic tensile tests of TC6 alloy were conducted in the temperature range of 800-900℃ by using the maximum <i>m</i> value superplasticity deformation (Max <i>m</i> SPD) method and the constant strain rate deformation method at the strain rate range of 0.0001-0.1 s<sup>-1</sup>. The stress-strain curve of the tensile tests was obtained and the microstructure near the fracture were analyzed by metallographic microscope. The result shows that the superplasticity of TC6 alloy is excellent, and the elongation increases first and then decreases with the increase of strain rate or temperature. When the temperature is 850℃ and strain rate is 0.001 s<sup>-1</sup> at constant stain rate tensile tests, the elongation reaches up to 993%. However, the elongation using Max <i>m</i> SPD method at 850℃ is 1353%. It is shown that the material can achieve better superplasticity by using Max <i>m</i> SPD tensile compared to constant stain rate tensile under the same temperature. The superplastic deformation of TC6 alloy can enhance the dynamic recrystallization behavior significantly, the dynamic recrystallization behavior is promoted when strain rate and temperature are increased.http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.6.004TC6 alloysuperplasticityisothermal tensilemaximum <em>m</em> value
spellingShingle DING Ling
WANG Zhilu
SUN Qianjiang
CHEN Jian
WANG Gaochao
Superplastic Deformation of TC6 Alloy
Journal of Aeronautical Materials
TC6 alloy
superplasticity
isothermal tensile
maximum <em>m</em> value
title Superplastic Deformation of TC6 Alloy
title_full Superplastic Deformation of TC6 Alloy
title_fullStr Superplastic Deformation of TC6 Alloy
title_full_unstemmed Superplastic Deformation of TC6 Alloy
title_short Superplastic Deformation of TC6 Alloy
title_sort superplastic deformation of tc6 alloy
topic TC6 alloy
superplasticity
isothermal tensile
maximum <em>m</em> value
url http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.6.004
work_keys_str_mv AT dingling superplasticdeformationoftc6alloy
AT wangzhilu superplasticdeformationoftc6alloy
AT sunqianjiang superplasticdeformationoftc6alloy
AT chenjian superplasticdeformationoftc6alloy
AT wanggaochao superplasticdeformationoftc6alloy