Development of heat-treatable Al-5Mg alloy sheets with the addition of Zn

Juhee Yun, Seungwon Kang, Sangjun Lee, DongHyun Bae

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

For a non-heat-treatable Al-5Mg alloy sheet, Zn was selected as an additive for precipitate hardening in the alloys. As the Zn content increases to 5 wt%, for recrystallized sheets, a high elongation to failure, along with the high tensile strength, was observed due to the activities of deformation band formation and grain boundary sliding. After aging treatment at 120 °C, Al-5Mg-5Zn alloy was reinforced by τ-phase (Mg32(Al,Zn)49) precipitates because the phase is formed the addition of 3.54 wt% Zn in Al-5Mg alloy. The precipitates are effective in the alloy, showing a yield strength of 433.4 MPa, the value of which is 4-times higher than that of Al-5Mg alloy. Thus, for a proper selection when adding Zn element to Al-5Mg alloy, a reinforcement of the strengthening mechanism can be induced, leading to much higher strength without a degradation of the elongation to failure.

Original languageEnglish
Pages (from-to)21-27
Number of pages7
JournalMaterials Science and Engineering A
Volume744
DOIs
Publication statusPublished - 2019 Jan 28

Fingerprint

heat
Precipitates
precipitates
elongation
Elongation
Grain boundary sliding
Strengthening (metal)
yield strength
Hot Temperature
reinforcement
high strength
hardening
tensile strength
Yield stress
Hardening
sliding
Reinforcement
Tensile strength
grain boundaries
Aging of materials

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{2a06259a643948c497d7fb66745be7f1,
title = "Development of heat-treatable Al-5Mg alloy sheets with the addition of Zn",
abstract = "For a non-heat-treatable Al-5Mg alloy sheet, Zn was selected as an additive for precipitate hardening in the alloys. As the Zn content increases to 5 wt{\%}, for recrystallized sheets, a high elongation to failure, along with the high tensile strength, was observed due to the activities of deformation band formation and grain boundary sliding. After aging treatment at 120 °C, Al-5Mg-5Zn alloy was reinforced by τ-phase (Mg32(Al,Zn)49) precipitates because the phase is formed the addition of 3.54 wt{\%} Zn in Al-5Mg alloy. The precipitates are effective in the alloy, showing a yield strength of 433.4 MPa, the value of which is 4-times higher than that of Al-5Mg alloy. Thus, for a proper selection when adding Zn element to Al-5Mg alloy, a reinforcement of the strengthening mechanism can be induced, leading to much higher strength without a degradation of the elongation to failure.",
author = "Juhee Yun and Seungwon Kang and Sangjun Lee and DongHyun Bae",
year = "2019",
month = "1",
day = "28",
doi = "10.1016/j.msea.2018.11.145",
language = "English",
volume = "744",
pages = "21--27",
journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
issn = "0921-5093",
publisher = "Elsevier BV",

}

Development of heat-treatable Al-5Mg alloy sheets with the addition of Zn. / Yun, Juhee; Kang, Seungwon; Lee, Sangjun; Bae, DongHyun.

In: Materials Science and Engineering A, Vol. 744, 28.01.2019, p. 21-27.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Development of heat-treatable Al-5Mg alloy sheets with the addition of Zn

AU - Yun, Juhee

AU - Kang, Seungwon

AU - Lee, Sangjun

AU - Bae, DongHyun

PY - 2019/1/28

Y1 - 2019/1/28

N2 - For a non-heat-treatable Al-5Mg alloy sheet, Zn was selected as an additive for precipitate hardening in the alloys. As the Zn content increases to 5 wt%, for recrystallized sheets, a high elongation to failure, along with the high tensile strength, was observed due to the activities of deformation band formation and grain boundary sliding. After aging treatment at 120 °C, Al-5Mg-5Zn alloy was reinforced by τ-phase (Mg32(Al,Zn)49) precipitates because the phase is formed the addition of 3.54 wt% Zn in Al-5Mg alloy. The precipitates are effective in the alloy, showing a yield strength of 433.4 MPa, the value of which is 4-times higher than that of Al-5Mg alloy. Thus, for a proper selection when adding Zn element to Al-5Mg alloy, a reinforcement of the strengthening mechanism can be induced, leading to much higher strength without a degradation of the elongation to failure.

AB - For a non-heat-treatable Al-5Mg alloy sheet, Zn was selected as an additive for precipitate hardening in the alloys. As the Zn content increases to 5 wt%, for recrystallized sheets, a high elongation to failure, along with the high tensile strength, was observed due to the activities of deformation band formation and grain boundary sliding. After aging treatment at 120 °C, Al-5Mg-5Zn alloy was reinforced by τ-phase (Mg32(Al,Zn)49) precipitates because the phase is formed the addition of 3.54 wt% Zn in Al-5Mg alloy. The precipitates are effective in the alloy, showing a yield strength of 433.4 MPa, the value of which is 4-times higher than that of Al-5Mg alloy. Thus, for a proper selection when adding Zn element to Al-5Mg alloy, a reinforcement of the strengthening mechanism can be induced, leading to much higher strength without a degradation of the elongation to failure.

UR - http://www.scopus.com/inward/record.url?scp=85057587162&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057587162&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2018.11.145

DO - 10.1016/j.msea.2018.11.145

M3 - Article

VL - 744

SP - 21

EP - 27

JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

ER -