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

5 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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year = "2022",

month = dec,

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 - https://www.scopus.com/pages/publications/85140984973

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)

引用此