Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance

Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance

A strategy for the microstructural design to achieve a critical upper limit of uniform nano α precipitates by controlling the amount of dislocations in the pre-deformed matrix after short time aging treatment was proposed in Ti–10Mo–8V–1Fe–3.5Al (all in wt.%, TB3 alloy) β alloy. The optimal processe...

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Main Authors: Bingjie Zhang, Tao Yang, Mingda Huang, Dong Wang, Qiaoyan Sun, Yunzhi Wang, Jun Sun
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:Journal of Materials Research and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S223878541730457X
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spelling doaj-ca175e33d6a34aabbce9a5b23ef1ee462020-11-25T03:18:31ZengElsevierJournal of Materials Research and Technology2238-78542019-01-0181777787Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performanceBingjie Zhang0Tao Yang1Mingda Huang2Dong Wang3Qiaoyan Sun4Yunzhi Wang5Jun Sun6State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaCenter of Microstructure Science, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaCenter of Microstructure Science, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaState Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China; Corresponding author.State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China; Center of Microstructure Science, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China; Department of Materials Science and Engineering, The Ohio State University, 1305 Kinnear Road, Columbus, OH 43212, USA; Corresponding author.State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, ChinaA strategy for the microstructural design to achieve a critical upper limit of uniform nano α precipitates by controlling the amount of dislocations in the pre-deformed matrix after short time aging treatment was proposed in Ti–10Mo–8V–1Fe–3.5Al (all in wt.%, TB3 alloy) β alloy. The optimal processes focused on the interaction of defects, mainly point defects and dislocations that are generated during cold rolling (CR). Texture evolution of α and β phases was also specified. Amount of nano-scaled α precipitates was characterized by the number density of precipitates observed by SEM, which is saturated at ∼204.1 μm−2. For the CR 20% sample, a good combination of tensile strength (∼1400 MPa) and elongation (∼12%) was achieved after secondary aging at 550 for 1 h, which provides an enlightenment for the re-engineering of traditional precipitate-hardening alloys. Keywords: β-Ti alloy, Short-time aging saturation, Uniform α precipitates, Mechanical propertieshttp://www.sciencedirect.com/science/article/pii/S223878541730457X
collection DOAJ
language English
format Article
sources DOAJ
author Bingjie Zhang
Tao Yang
Mingda Huang
Dong Wang
Qiaoyan Sun
Yunzhi Wang
Jun Sun
spellingShingle Bingjie Zhang
Tao Yang
Mingda Huang
Dong Wang
Qiaoyan Sun
Yunzhi Wang
Jun Sun
Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
Journal of Materials Research and Technology
author_facet Bingjie Zhang
Tao Yang
Mingda Huang
Dong Wang
Qiaoyan Sun
Yunzhi Wang
Jun Sun
author_sort Bingjie Zhang
title Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
title_short Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
title_full Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
title_fullStr Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
title_full_unstemmed Design of uniform nano α precipitates in a pre-deformed β-Ti alloy with high mechanical performance
title_sort design of uniform nano α precipitates in a pre-deformed β-ti alloy with high mechanical performance
publisher Elsevier
series Journal of Materials Research and Technology
issn 2238-7854
publishDate 2019-01-01
description A strategy for the microstructural design to achieve a critical upper limit of uniform nano α precipitates by controlling the amount of dislocations in the pre-deformed matrix after short time aging treatment was proposed in Ti–10Mo–8V–1Fe–3.5Al (all in wt.%, TB3 alloy) β alloy. The optimal processes focused on the interaction of defects, mainly point defects and dislocations that are generated during cold rolling (CR). Texture evolution of α and β phases was also specified. Amount of nano-scaled α precipitates was characterized by the number density of precipitates observed by SEM, which is saturated at ∼204.1 μm−2. For the CR 20% sample, a good combination of tensile strength (∼1400 MPa) and elongation (∼12%) was achieved after secondary aging at 550 for 1 h, which provides an enlightenment for the re-engineering of traditional precipitate-hardening alloys. Keywords: β-Ti alloy, Short-time aging saturation, Uniform α precipitates, Mechanical properties
url http://www.sciencedirect.com/science/article/pii/S223878541730457X
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AT taoyang designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
AT mingdahuang designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
AT dongwang designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
AT qiaoyansun designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
AT yunzhiwang designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
AT junsun designofuniformnanoaprecipitatesinapredeformedbtialloywithhighmechanicalperformance
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