Development of Novel Lightweight Dual-Phase Al-Ti-Cr-Mn-V Medium-Entropy Alloys with High Strength and Ductility

Yu-Chin Liao; Po-Sung Chen; Chao-Hsiu Li; Pei-Hua Tsai; Jason S. C. Jang; Ker-Chang Hsieh; Chih-Yen Chen; Ping-Hung Lin; Jacob C. Huang; Hsin-Jay Wu; Yu-Chieh Lo; Chang-Wei Huang; I-Yu Tsao

doi:10.3390/e22010074

Development of Novel Lightweight Dual-Phase Al-Ti-Cr-Mn-V Medium-Entropy Alloys with High Strength and Ductility

Yu-Chin Liao
, Po-Sung Chen
, Chao-Hsiu Li
, Pei-Hua Tsai
, Jason S. C. Jang^*
, Ker-Chang Hsieh
, Chih-Yen Chen
, Ping-Hung Lin
, Jacob C. Huang^*
, Hsin-Jay Wu
, Yu-Chieh Lo
, Chang-Wei Huang
, I-Yu Tsao

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

58 Downloads (CityUHK Scholars)

Abstract

A novel lightweight Al-Ti-Cr-Mn-V medium-entropy alloy (MEA) system was developed using a nonequiatiomic approach and alloys were produced through arc melting and drop casting. These alloys comprised a body-centered cubic (BCC) and face-centered cubic (FCC) dual phase with a density of approximately 4.5 g/cm³. However, the fraction of the BCC phase and morphology of the FCC phase can be controlled by incorporating other elements. The results of compression tests indicated that these Al-Ti-Cr-Mn-V alloys exhibited a prominent compression strength (~1940 MPa) and ductility (~30%). Moreover, homogenized samples maintained a high compression strength of 1900 MPa and similar ductility (30%). Due to the high specific compressive strength (0.433 GPag/cm³) and excellent combination of strength and ductility, the cast lightweight Al-Ti-Cr-Mn-V MEAs are a promising alloy system for application in transportation and energy industries.

Original language	English
Article number	74
Journal	Entropy
Volume	22
Issue number	1
Online published	6 Jan 2020
DOIs	https://doi.org/10.3390/e22010074
Publication status	Published - Jan 2020

Research Keywords

High-entropy alloy
Lightweight alloy
Mechanical property
Medium-entropy alloy

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Development of Novel Lightweight Dual-Phase Al-Ti-Cr-Mn-V Medium-Entropy Alloys with High Strength and Ductility",

abstract = "A novel lightweight Al-Ti-Cr-Mn-V medium-entropy alloy (MEA) system was developed using a nonequiatiomic approach and alloys were produced through arc melting and drop casting. These alloys comprised a body-centered cubic (BCC) and face-centered cubic (FCC) dual phase with a density of approximately 4.5 g/cm3. However, the fraction of the BCC phase and morphology of the FCC phase can be controlled by incorporating other elements. The results of compression tests indicated that these Al-Ti-Cr-Mn-V alloys exhibited a prominent compression strength (\textasciitilde{}1940 MPa) and ductility (\textasciitilde{}30\%). Moreover, homogenized samples maintained a high compression strength of 1900 MPa and similar ductility (30\%). Due to the high specific compressive strength (0.433 GPag/cm3) and excellent combination of strength and ductility, the cast lightweight Al-Ti-Cr-Mn-V MEAs are a promising alloy system for application in transportation and energy industries.",

keywords = "High-entropy alloy, Lightweight alloy, Mechanical property, Medium-entropy alloy",

author = "Yu-Chin Liao and Po-Sung Chen and Chao-Hsiu Li and Pei-Hua Tsai and Jang, \{Jason S. C.\} and Ker-Chang Hsieh and Chih-Yen Chen and Ping-Hung Lin and Huang, \{Jacob C.\} and Hsin-Jay Wu and Yu-Chieh Lo and Chang-Wei Huang and I-Yu Tsao",

year = "2020",

month = jan,

doi = "10.3390/e22010074",

language = "English",

volume = "22",

journal = "Entropy",

issn = "1099-4300",

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T1 - Development of Novel Lightweight Dual-Phase Al-Ti-Cr-Mn-V Medium-Entropy Alloys with High Strength and Ductility

AU - Liao, Yu-Chin

AU - Chen, Po-Sung

AU - Li, Chao-Hsiu

AU - Tsai, Pei-Hua

AU - Jang, Jason S. C.

AU - Hsieh, Ker-Chang

AU - Chen, Chih-Yen

AU - Lin, Ping-Hung

AU - Huang, Jacob C.

AU - Wu, Hsin-Jay

AU - Lo, Yu-Chieh

AU - Huang, Chang-Wei

AU - Tsao, I-Yu

PY - 2020/1

Y1 - 2020/1

N2 - A novel lightweight Al-Ti-Cr-Mn-V medium-entropy alloy (MEA) system was developed using a nonequiatiomic approach and alloys were produced through arc melting and drop casting. These alloys comprised a body-centered cubic (BCC) and face-centered cubic (FCC) dual phase with a density of approximately 4.5 g/cm3. However, the fraction of the BCC phase and morphology of the FCC phase can be controlled by incorporating other elements. The results of compression tests indicated that these Al-Ti-Cr-Mn-V alloys exhibited a prominent compression strength (~1940 MPa) and ductility (~30%). Moreover, homogenized samples maintained a high compression strength of 1900 MPa and similar ductility (30%). Due to the high specific compressive strength (0.433 GPag/cm3) and excellent combination of strength and ductility, the cast lightweight Al-Ti-Cr-Mn-V MEAs are a promising alloy system for application in transportation and energy industries.

AB - A novel lightweight Al-Ti-Cr-Mn-V medium-entropy alloy (MEA) system was developed using a nonequiatiomic approach and alloys were produced through arc melting and drop casting. These alloys comprised a body-centered cubic (BCC) and face-centered cubic (FCC) dual phase with a density of approximately 4.5 g/cm3. However, the fraction of the BCC phase and morphology of the FCC phase can be controlled by incorporating other elements. The results of compression tests indicated that these Al-Ti-Cr-Mn-V alloys exhibited a prominent compression strength (~1940 MPa) and ductility (~30%). Moreover, homogenized samples maintained a high compression strength of 1900 MPa and similar ductility (30%). Due to the high specific compressive strength (0.433 GPag/cm3) and excellent combination of strength and ductility, the cast lightweight Al-Ti-Cr-Mn-V MEAs are a promising alloy system for application in transportation and energy industries.

KW - High-entropy alloy

KW - Lightweight alloy

KW - Mechanical property

KW - Medium-entropy alloy

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U2 - 10.3390/e22010074

DO - 10.3390/e22010074

M3 - RGC 21 - Publication in refereed journal

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SN - 1099-4300

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JO - Entropy

JF - Entropy

IS - 1

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ER -

Development of Novel Lightweight Dual-Phase Al-Ti-Cr-Mn-V Medium-Entropy Alloys with High Strength and Ductility

Abstract

Research Keywords

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