Optimization of upcycling of Ti-6Al-4V swarf

Yuanshen Qi; Ilana B. Timokhina; Alexandra Shekhter; Khan Sharp; Rimma Lapovok

doi:10.1016/j.jmatprotec.2018.01.036

Optimization of upcycling of Ti-6Al-4V swarf

Yuanshen Qi^*, Ilana B. Timokhina, Alexandra Shekhter, Khan Sharp, Rimma Lapovok

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Application of Ti alloys in the aerospace and biomedical industries is on the incline which typically results in more than 80% of Ti alloy in swarf. Hence, developing innovative processes to recycle Ti alloys swarf is becoming an increasingly valuable issue. Equal-channel angular pressing (ECAP) compaction with a series of post-deformation heat treatments were designed and investigated in this study as method to upcycle Ti swarf. After a single ECAP compaction process, the compacts possessed near 99% theoretical density and annealing treatment further increased the density and enhanced the bonding between chips. The microstructural and textural evolution of α and β phases after ECAP and annealing was examined. Upcycling of fine-grained Ti-6Al-4V compacts with minimum crystallographic texture intensity were produced from swarf using economically-viable way.

Original language	English
Pages (from-to)	853-864
Number of pages	12
Journal	Journal of Materials Processing Technology
Volume	255
DOIs	https://doi.org/10.1016/j.jmatprotec.2018.01.036
State	Published - May 2018
Externally published	Yes

Keywords

Annealing
Equal-channel angular pressing
Microstructure-property relationship
Recrystallization
Swarf
Ti-6Al-4V

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10.1016/j.jmatprotec.2018.01.036

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title = "Optimization of upcycling of Ti-6Al-4V swarf",

abstract = "Application of Ti alloys in the aerospace and biomedical industries is on the incline which typically results in more than 80% of Ti alloy in swarf. Hence, developing innovative processes to recycle Ti alloys swarf is becoming an increasingly valuable issue. Equal-channel angular pressing (ECAP) compaction with a series of post-deformation heat treatments were designed and investigated in this study as method to upcycle Ti swarf. After a single ECAP compaction process, the compacts possessed near 99% theoretical density and annealing treatment further increased the density and enhanced the bonding between chips. The microstructural and textural evolution of α and β phases after ECAP and annealing was examined. Upcycling of fine-grained Ti-6Al-4V compacts with minimum crystallographic texture intensity were produced from swarf using economically-viable way.",

keywords = "Annealing, Equal-channel angular pressing, Microstructure-property relationship, Recrystallization, Swarf, Ti-6Al-4V",

author = "Yuanshen Qi and Timokhina, {Ilana B.} and Alexandra Shekhter and Khan Sharp and Rimma Lapovok",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

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doi = "10.1016/j.jmatprotec.2018.01.036",

language = "英语",

volume = "255",

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T1 - Optimization of upcycling of Ti-6Al-4V swarf

AU - Qi, Yuanshen

AU - Timokhina, Ilana B.

AU - Shekhter, Alexandra

AU - Sharp, Khan

AU - Lapovok, Rimma

PY - 2018/5

Y1 - 2018/5

N2 - Application of Ti alloys in the aerospace and biomedical industries is on the incline which typically results in more than 80% of Ti alloy in swarf. Hence, developing innovative processes to recycle Ti alloys swarf is becoming an increasingly valuable issue. Equal-channel angular pressing (ECAP) compaction with a series of post-deformation heat treatments were designed and investigated in this study as method to upcycle Ti swarf. After a single ECAP compaction process, the compacts possessed near 99% theoretical density and annealing treatment further increased the density and enhanced the bonding between chips. The microstructural and textural evolution of α and β phases after ECAP and annealing was examined. Upcycling of fine-grained Ti-6Al-4V compacts with minimum crystallographic texture intensity were produced from swarf using economically-viable way.

AB - Application of Ti alloys in the aerospace and biomedical industries is on the incline which typically results in more than 80% of Ti alloy in swarf. Hence, developing innovative processes to recycle Ti alloys swarf is becoming an increasingly valuable issue. Equal-channel angular pressing (ECAP) compaction with a series of post-deformation heat treatments were designed and investigated in this study as method to upcycle Ti swarf. After a single ECAP compaction process, the compacts possessed near 99% theoretical density and annealing treatment further increased the density and enhanced the bonding between chips. The microstructural and textural evolution of α and β phases after ECAP and annealing was examined. Upcycling of fine-grained Ti-6Al-4V compacts with minimum crystallographic texture intensity were produced from swarf using economically-viable way.

KW - Annealing

KW - Equal-channel angular pressing

KW - Microstructure-property relationship

KW - Recrystallization

KW - Swarf

KW - Ti-6Al-4V

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JF - Journal of Materials Processing Technology

ER -

Optimization of upcycling of Ti-6Al-4V swarf

Abstract

Keywords

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