Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy

For the development of biological ZrTi alloys with excellent properties, microstructure evolution, mechanical properties and corrosion behaviors of a novel Zr–40Ti–4.5Al–4.5 V (Z40T, wt.%) alloy resulted from different cooling rates have been investigated. Variations in the phase composition and mic...

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Main Authors: Huicong Dong, Zhihao Feng, Shunxing Liang, Xinyang Sun, Jianhui Li, Dayong Wu, Ru Su, Xinyu Zhang
Format: Article
Language:English
Published: Elsevier 2020-05-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S223878541931991X
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record_format Article
collection DOAJ
language English
format Article
sources DOAJ
author Huicong Dong
Zhihao Feng
Shunxing Liang
Xinyang Sun
Jianhui Li
Dayong Wu
Ru Su
Xinyu Zhang
spellingShingle Huicong Dong
Zhihao Feng
Shunxing Liang
Xinyang Sun
Jianhui Li
Dayong Wu
Ru Su
Xinyu Zhang
Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
Journal of Materials Research and Technology
ZrTiAlV alloy
Cooling rates
Microstructure
Mechanical properties
Corrosion behaviors
author_facet Huicong Dong
Zhihao Feng
Shunxing Liang
Xinyang Sun
Jianhui Li
Dayong Wu
Ru Su
Xinyu Zhang
author_sort Huicong Dong
title Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
title_short Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
title_full Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
title_fullStr Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
title_full_unstemmed Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloy
title_sort evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel zrti-based alloy
publisher Elsevier
series Journal of Materials Research and Technology
issn 2238-7854
publishDate 2020-05-01
description For the development of biological ZrTi alloys with excellent properties, microstructure evolution, mechanical properties and corrosion behaviors of a novel Zr–40Ti–4.5Al–4.5 V (Z40T, wt.%) alloy resulted from different cooling rates have been investigated. Variations in the phase composition and microstructure are observed with X-ray diffraction, metallography, scanning and transmission electron microscopy analyses. The results demonstrate that α'' martensite can be formed through a nondiffusive phase transformation of the β phase during rapid cooling. However, slow cooling rates provide a stable α phase due to atomic diffusion and rearrangement. Furthermore, the grain size of each phase also changes as a result of different cooling rates. Moreover, the mechanical properties and corrosion behaviors are determined with uniaxial tensile testing and potentiodynamic polarization testing in NaCl solution. The mechanical properties and corrosion behaviors of the Z40T alloy are closely related to the phase composition and microstructure. The sample strength and fracture elongation changes obviously as the cooling rates change from water cooling to slow cooling. Analysis of potentiodynamic potential curves indicates that corrosion potential increases and corrosion current density decreases as the cooling rate is increased from slow cooling to water cooling. The variation in the mechanical properties and corrosion behaviors of the Z40T alloy are ascribed to the differences in the crystal structure and grain size of the constituent phase.
topic ZrTiAlV alloy
Cooling rates
Microstructure
Mechanical properties
Corrosion behaviors
url http://www.sciencedirect.com/science/article/pii/S223878541931991X
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spelling doaj-eb599203d8df47e3a40b5164936fdd272020-11-25T01:25:10ZengElsevierJournal of Materials Research and Technology2238-78542020-05-019334713480Evolution of microstructure, mechanical properties and corrosion behaviors using cooling rate regulation in a novel ZrTi-based alloyHuicong Dong0Zhihao Feng1Shunxing Liang2Xinyang Sun3Jianhui Li4Dayong Wu5Ru Su6Xinyu Zhang7Hebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, ChinaHebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; Corresponding authors.College of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, ChinaHebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, ChinaHebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, ChinaHebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, ChinaHebei Key Laboratory of Material Near-net Forming Technology, Hebei Engineering Laboratory of Aviation Lightweight Composite Materials and Processing Technology, School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, ChinaState Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; Corresponding authors.For the development of biological ZrTi alloys with excellent properties, microstructure evolution, mechanical properties and corrosion behaviors of a novel Zr–40Ti–4.5Al–4.5 V (Z40T, wt.%) alloy resulted from different cooling rates have been investigated. Variations in the phase composition and microstructure are observed with X-ray diffraction, metallography, scanning and transmission electron microscopy analyses. The results demonstrate that α'' martensite can be formed through a nondiffusive phase transformation of the β phase during rapid cooling. However, slow cooling rates provide a stable α phase due to atomic diffusion and rearrangement. Furthermore, the grain size of each phase also changes as a result of different cooling rates. Moreover, the mechanical properties and corrosion behaviors are determined with uniaxial tensile testing and potentiodynamic polarization testing in NaCl solution. The mechanical properties and corrosion behaviors of the Z40T alloy are closely related to the phase composition and microstructure. The sample strength and fracture elongation changes obviously as the cooling rates change from water cooling to slow cooling. Analysis of potentiodynamic potential curves indicates that corrosion potential increases and corrosion current density decreases as the cooling rate is increased from slow cooling to water cooling. The variation in the mechanical properties and corrosion behaviors of the Z40T alloy are ascribed to the differences in the crystal structure and grain size of the constituent phase.http://www.sciencedirect.com/science/article/pii/S223878541931991XZrTiAlV alloyCooling ratesMicrostructureMechanical propertiesCorrosion behaviors