Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy

The creep behaviour of hot hammer forged Ti-6Al-4V alloy under different forging temperatures has an essential influence on their high-temperature service performance. In this article, the high-temperature mechanical property and creep behaviour of Ti-6Al-4V alloy forging at different forging temper...

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Main Authors: Xiurong Fang, Yan Liu, Yanru Shao, Huihui Xu, Fuqiang Yang
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Advances in Materials Science and Engineering
Online Access:http://dx.doi.org/10.1155/2023/4414502
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author Xiurong Fang
Yan Liu
Yanru Shao
Huihui Xu
Fuqiang Yang
author_facet Xiurong Fang
Yan Liu
Yanru Shao
Huihui Xu
Fuqiang Yang
author_sort Xiurong Fang
collection DOAJ
description The creep behaviour of hot hammer forged Ti-6Al-4V alloy under different forging temperatures has an essential influence on their high-temperature service performance. In this article, the high-temperature mechanical property and creep behaviour of Ti-6Al-4V alloy forging at different forging temperatures were first investigated experimentally. Then, in view of the critical effect of microcracks and other defects on the service life of components in forging, the creep characteristics at the tip of a 2 mm crack were characterized by the finite element method. The results show that when the Ti-6Al-4V alloy was forged at 1000°C, the high-temperature mechanical property was improved, and the steady-state creep rate and creep residual deformation were significantly reduced. In addition, the creep strain and creep rate at the crack tip were decreased apparently during creep, and the creep strain gradient in the crack tip region was also significantly reduced. This indicates that the creep deformation of Ti-6Al-4V alloy can be controlled by an appropriate forging temperature during hot hammer forging process and might delay the crack propagation to improve the service life of components.
format Article
id doaj-art-98a3e7e0d3ee4cfc87d4deba4bc4e5a4
institution Kabale University
issn 1687-8442
language English
publishDate 2023-01-01
publisher Wiley
record_format Article
series Advances in Materials Science and Engineering
spelling doaj-art-98a3e7e0d3ee4cfc87d4deba4bc4e5a42025-08-20T03:37:22ZengWileyAdvances in Materials Science and Engineering1687-84422023-01-01202310.1155/2023/4414502Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V AlloyXiurong Fang0Yan Liu1Yanru Shao2Huihui Xu3Fuqiang Yang4School of Mechanical EngineeringSchool of Mechanical EngineeringKangni Mechanical & Electrical Co. Ltd.School of Mechanical EngineeringSchool of Mechanical EngineeringThe creep behaviour of hot hammer forged Ti-6Al-4V alloy under different forging temperatures has an essential influence on their high-temperature service performance. In this article, the high-temperature mechanical property and creep behaviour of Ti-6Al-4V alloy forging at different forging temperatures were first investigated experimentally. Then, in view of the critical effect of microcracks and other defects on the service life of components in forging, the creep characteristics at the tip of a 2 mm crack were characterized by the finite element method. The results show that when the Ti-6Al-4V alloy was forged at 1000°C, the high-temperature mechanical property was improved, and the steady-state creep rate and creep residual deformation were significantly reduced. In addition, the creep strain and creep rate at the crack tip were decreased apparently during creep, and the creep strain gradient in the crack tip region was also significantly reduced. This indicates that the creep deformation of Ti-6Al-4V alloy can be controlled by an appropriate forging temperature during hot hammer forging process and might delay the crack propagation to improve the service life of components.http://dx.doi.org/10.1155/2023/4414502
spellingShingle Xiurong Fang
Yan Liu
Yanru Shao
Huihui Xu
Fuqiang Yang
Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
Advances in Materials Science and Engineering
title Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
title_full Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
title_fullStr Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
title_full_unstemmed Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
title_short Forging Temperature Effects on Crack Tip Creep Behaviour of Hot Hammer Forged Ti-6Al-4V Alloy
title_sort forging temperature effects on crack tip creep behaviour of hot hammer forged ti 6al 4v alloy
url http://dx.doi.org/10.1155/2023/4414502
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