Tailored rapid annealing to obtain heterostructured ultra-high-strength lightweight Ti-rich medium-entropy alloys

Y. C. Liao; P. S. Chen; P. H. Tsai; J. S.C. Jang; K. C. Hsieh; C. Y. Chen; J. C. Huang; H. J. Wu; I. Y. Tsao

doi:10.1016/j.rinma.2022.100342

Tailored rapid annealing to obtain heterostructured ultra-high-strength lightweight Ti-rich medium-entropy alloys

Y. C. Liao, P. S. Chen, P. H. Tsai, J. S.C. Jang, K. C. Hsieh, C. Y. Chen, J. C. Huang, H. J. Wu, I. Y. Tsao

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

2 引文斯高帕斯（Scopus）

摘要

Thermomechanical treatment (TMT) is a widely used process for effectively enhancing the mechanical properties of conventional metallic materials. This study applied TMT along with rapid annealing to a lightweight (≈5 g/cm³) Ti-rich Ti₆₅(AlCrNb)₃₅ medium-entropy alloy (Ti-65 MEA) to equip it with a heterogeneous structure (heterostructure). After the annealing treatment, the Ti-65 MEA exhibited a heterogenous microstructure comprising nonrecrystallized shear bands and ultrafine recrystallized grains. Remarkably, the heterostructured Ti-65 MEA had extraordinary mechanical properties (tensile strength, 1500 MPa; elongation, 25%) and ultrahigh specific strength (247 MPa cm³/g).

原文	???core.languages.en_GB???
文章編號	100342
期刊	Results in Materials
卷	16
DOIs	https://doi.org/10.1016/j.rinma.2022.100342
出版狀態	已出版 - 12月 2022

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10.1016/j.rinma.2022.100342

中低密度高熵合金之合金設計與其微奈米尺度潛變機制研究(3/3)
Jang, S.-C. (PI)
1/08/20 → 31/07/21
研究計畫: Research

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title = "Tailored rapid annealing to obtain heterostructured ultra-high-strength lightweight Ti-rich medium-entropy alloys",

abstract = "Thermomechanical treatment (TMT) is a widely used process for effectively enhancing the mechanical properties of conventional metallic materials. This study applied TMT along with rapid annealing to a lightweight (≈5 g/cm3) Ti-rich Ti65(AlCrNb)35 medium-entropy alloy (Ti-65 MEA) to equip it with a heterogeneous structure (heterostructure). After the annealing treatment, the Ti-65 MEA exhibited a heterogenous microstructure comprising nonrecrystallized shear bands and ultrafine recrystallized grains. Remarkably, the heterostructured Ti-65 MEA had extraordinary mechanical properties (tensile strength, 1500 MPa; elongation, 25%) and ultrahigh specific strength (247 MPa cm3/g).",

keywords = "Crystal structure, Metals and alloys, Microstructure",

author = "Liao, {Y. C.} and Chen, {P. S.} and Tsai, {P. H.} and Jang, {J. S.C.} and Hsieh, {K. C.} and Chen, {C. Y.} and Huang, {J. C.} and Wu, {H. J.} and Tsao, {I. Y.}",

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doi = "10.1016/j.rinma.2022.100342",

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T1 - Tailored rapid annealing to obtain heterostructured ultra-high-strength lightweight Ti-rich medium-entropy alloys

AU - Liao, Y. C.

AU - Chen, P. S.

AU - Tsai, P. H.

AU - Jang, J. S.C.

AU - Hsieh, K. C.

AU - Chen, C. Y.

AU - Huang, J. C.

AU - Wu, H. J.

AU - Tsao, I. Y.

PY - 2022/12

Y1 - 2022/12

N2 - Thermomechanical treatment (TMT) is a widely used process for effectively enhancing the mechanical properties of conventional metallic materials. This study applied TMT along with rapid annealing to a lightweight (≈5 g/cm3) Ti-rich Ti65(AlCrNb)35 medium-entropy alloy (Ti-65 MEA) to equip it with a heterogeneous structure (heterostructure). After the annealing treatment, the Ti-65 MEA exhibited a heterogenous microstructure comprising nonrecrystallized shear bands and ultrafine recrystallized grains. Remarkably, the heterostructured Ti-65 MEA had extraordinary mechanical properties (tensile strength, 1500 MPa; elongation, 25%) and ultrahigh specific strength (247 MPa cm3/g).

AB - Thermomechanical treatment (TMT) is a widely used process for effectively enhancing the mechanical properties of conventional metallic materials. This study applied TMT along with rapid annealing to a lightweight (≈5 g/cm3) Ti-rich Ti65(AlCrNb)35 medium-entropy alloy (Ti-65 MEA) to equip it with a heterogeneous structure (heterostructure). After the annealing treatment, the Ti-65 MEA exhibited a heterogenous microstructure comprising nonrecrystallized shear bands and ultrafine recrystallized grains. Remarkably, the heterostructured Ti-65 MEA had extraordinary mechanical properties (tensile strength, 1500 MPa; elongation, 25%) and ultrahigh specific strength (247 MPa cm3/g).

KW - Crystal structure

KW - Metals and alloys

KW - Microstructure

UR - http://www.scopus.com/inward/record.url?scp=85140984973&partnerID=8YFLogxK

U2 - 10.1016/j.rinma.2022.100342

DO - 10.1016/j.rinma.2022.100342

M3 - 期刊論文

AN - SCOPUS:85140984973

SN - 2590-048X

VL - 16

JO - Results in Materials

JF - Results in Materials

M1 - 100342

ER -

Tailored rapid annealing to obtain heterostructured ultra-high-strength lightweight Ti-rich medium-entropy alloys

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專案

中低密度高熵合金之合金設計與其微奈米尺度潛變機制研究(3/3)

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