Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits

G. Q. Tong; Kang Cheung Chan; T. G. Nieh

Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits

G. Q. Tong, Kang Cheung Chan, T. G. Nieh

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

High strain rate superplastic (HSRS) bulging and cavitation behavior of a cold rolled Al-6Mg-0.3Sc sheet were investigated at the temperature of 798K and at the constant applied flow stress of 6.0MPa. The maximum effective strain of about 2.1 was obtained. The experimental results revealed that the cavity growth was essentially plastic - controlled. HSRS bulging limits of the sheet were further predicted based on the Marchiniak - Kuczynski model and a plastic damage approach. It is able to predict HSRS forming limits of the sheet in a reasonable agreement with the experimental findings even without assuming any initial geometrical defect.

Original language	English
Pages (from-to)	385-389
Number of pages	5
Journal	Materials Science Forum
Volume	471-472
Publication status	Published - 1 Dec 2004
Event	11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology. - Jinan, China Duration: 18 Sept 2004 → 20 Sept 2004

Keywords

Bulging
Cavitation
Forming limits
Superplasticity

ASJC Scopus subject areas

General Materials Science

Cite this

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title = "Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits",

abstract = "High strain rate superplastic (HSRS) bulging and cavitation behavior of a cold rolled Al-6Mg-0.3Sc sheet were investigated at the temperature of 798K and at the constant applied flow stress of 6.0MPa. The maximum effective strain of about 2.1 was obtained. The experimental results revealed that the cavity growth was essentially plastic - controlled. HSRS bulging limits of the sheet were further predicted based on the Marchiniak - Kuczynski model and a plastic damage approach. It is able to predict HSRS forming limits of the sheet in a reasonable agreement with the experimental findings even without assuming any initial geometrical defect.",

keywords = "Bulging, Cavitation, Forming limits, Superplasticity",

author = "Tong, {G. Q.} and Chan, {Kang Cheung} and Nieh, {T. G.}",

year = "2004",

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day = "1",

language = "English",

volume = "471-472",

pages = "385--389",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

note = "11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology. ; Conference date: 18-09-2004 Through 20-09-2004",

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TY - JOUR

T1 - Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits

AU - Tong, G. Q.

AU - Chan, Kang Cheung

AU - Nieh, T. G.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - High strain rate superplastic (HSRS) bulging and cavitation behavior of a cold rolled Al-6Mg-0.3Sc sheet were investigated at the temperature of 798K and at the constant applied flow stress of 6.0MPa. The maximum effective strain of about 2.1 was obtained. The experimental results revealed that the cavity growth was essentially plastic - controlled. HSRS bulging limits of the sheet were further predicted based on the Marchiniak - Kuczynski model and a plastic damage approach. It is able to predict HSRS forming limits of the sheet in a reasonable agreement with the experimental findings even without assuming any initial geometrical defect.

AB - High strain rate superplastic (HSRS) bulging and cavitation behavior of a cold rolled Al-6Mg-0.3Sc sheet were investigated at the temperature of 798K and at the constant applied flow stress of 6.0MPa. The maximum effective strain of about 2.1 was obtained. The experimental results revealed that the cavity growth was essentially plastic - controlled. HSRS bulging limits of the sheet were further predicted based on the Marchiniak - Kuczynski model and a plastic damage approach. It is able to predict HSRS forming limits of the sheet in a reasonable agreement with the experimental findings even without assuming any initial geometrical defect.

KW - Bulging

KW - Cavitation

KW - Forming limits

KW - Superplasticity

UR - http://www.scopus.com/inward/record.url?scp=17044433429&partnerID=8YFLogxK

M3 - Conference article

SN - 0255-5476

VL - 471-472

SP - 385

EP - 389

JO - Materials Science Forum

JF - Materials Science Forum

T2 - 11th International Manufacturing Conference - Advances in Materials Manufacturing Science and Technology.

Y2 - 18 September 2004 through 20 September 2004

ER -

Superplastic bulging of an Al-6Mg-0.3Sc alloy and its forming limits

Abstract

Keywords

ASJC Scopus subject areas

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