Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites

For magnesium matrix composites (MMCs), it is crucial to enhance their strength while maintaining plasticity. In this work, Ti particle (TiP) reinforced VW94 composites (TiP/VW94 composites) with varying amounts of Ti particles were prepared using a semi-solid stirring-assisted ultrasonic vibration...

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Main Authors: Dongmei Pu, Xianhua Chen, Jingfeng Wang, Jun Tan, Jianbo Li, Hong Yang, Bo Feng, Kaihong Zheng, Fusheng Pan
Format: Article
Language:English
Published: Elsevier 2023-07-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785423014187
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author Dongmei Pu
Xianhua Chen
Jingfeng Wang
Jun Tan
Jianbo Li
Hong Yang
Bo Feng
Kaihong Zheng
Fusheng Pan
author_facet Dongmei Pu
Xianhua Chen
Jingfeng Wang
Jun Tan
Jianbo Li
Hong Yang
Bo Feng
Kaihong Zheng
Fusheng Pan
author_sort Dongmei Pu
collection DOAJ
description For magnesium matrix composites (MMCs), it is crucial to enhance their strength while maintaining plasticity. In this work, Ti particle (TiP) reinforced VW94 composites (TiP/VW94 composites) with varying amounts of Ti particles were prepared using a semi-solid stirring-assisted ultrasonic vibration method followed by homogenizing treatment. Microstructural analysis revealed that the addition of Ti particles resulted in grain refinement and facilitated the formation of lamellar long period stacking ordered structure (LPSO) during homogenizing treatment due to the increasing dislocation density. In addition, the jagged interfacial product of MnTi phase was generated at the interface between Ti particles and Mg matrix, and a strong interfacial bonding was formed at the Mg/Ti interface. The tensile test results show that the strength and elongation of TiP/VW94 composites all improved than VW94 matrix alloy and the 5%TiP/VW94 composite presents the best tensile properties with yield strength (YS), ultimate tensile strength (UTS), and elongation of 173 MPa, 256 MPa and 5.9%, respectively. The improved tensile properties of TiP/VW94 composites can be attributed to grain refinement, load transfer, dispersion strengthening, dislocation strengthening, and an increase in lamellar LPSO.
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spelling doaj.art-9858738ca73e4f6792ee198accddb9082023-08-11T05:33:47ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012533243336Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 compositesDongmei Pu0Xianhua Chen1Jingfeng Wang2Jun Tan3Jianbo Li4Hong Yang5Bo Feng6Kaihong Zheng7Fusheng Pan8College of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, ChinaCollege of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, China; Corresponding author. College of Materials Science & Engineering, Chongqing University, 400045, China.College of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, ChinaCollege of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, ChinaCollege of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, ChinaCollege of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, ChinaInstitute of New Materials, Guangdong Academy of Sciences, Guangzhou, 510650, ChinaInstitute of New Materials, Guangdong Academy of Sciences, Guangzhou, 510650, ChinaCollege of Materials Science & Engineering, Chongqing University, 400045, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, 400045, China; Corresponding author. College of Materials Science & Engineering, Chongqing University, 400045, China.For magnesium matrix composites (MMCs), it is crucial to enhance their strength while maintaining plasticity. In this work, Ti particle (TiP) reinforced VW94 composites (TiP/VW94 composites) with varying amounts of Ti particles were prepared using a semi-solid stirring-assisted ultrasonic vibration method followed by homogenizing treatment. Microstructural analysis revealed that the addition of Ti particles resulted in grain refinement and facilitated the formation of lamellar long period stacking ordered structure (LPSO) during homogenizing treatment due to the increasing dislocation density. In addition, the jagged interfacial product of MnTi phase was generated at the interface between Ti particles and Mg matrix, and a strong interfacial bonding was formed at the Mg/Ti interface. The tensile test results show that the strength and elongation of TiP/VW94 composites all improved than VW94 matrix alloy and the 5%TiP/VW94 composite presents the best tensile properties with yield strength (YS), ultimate tensile strength (UTS), and elongation of 173 MPa, 256 MPa and 5.9%, respectively. The improved tensile properties of TiP/VW94 composites can be attributed to grain refinement, load transfer, dispersion strengthening, dislocation strengthening, and an increase in lamellar LPSO.http://www.sciencedirect.com/science/article/pii/S2238785423014187Magnesium matrix compositesTi particlesLPSO phaseTensile properties
spellingShingle Dongmei Pu
Xianhua Chen
Jingfeng Wang
Jun Tan
Jianbo Li
Hong Yang
Bo Feng
Kaihong Zheng
Fusheng Pan
Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
Journal of Materials Research and Technology
Magnesium matrix composites
Ti particles
LPSO phase
Tensile properties
title Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
title_full Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
title_fullStr Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
title_full_unstemmed Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
title_short Effect of Ti particles on the LPSO phase and mechanical properties of TiP/VW94 composites
title_sort effect of ti particles on the lpso phase and mechanical properties of tip vw94 composites
topic Magnesium matrix composites
Ti particles
LPSO phase
Tensile properties
url http://www.sciencedirect.com/science/article/pii/S2238785423014187
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