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Strain rate sensitivity of stress corrosion cracking in aluminum-5% copper and aluminum-5% zinc alloys containing titanium

Bhat, MV and Vasu, KI (1983) Strain rate sensitivity of stress corrosion cracking in aluminum-5% copper and aluminum-5% zinc alloys containing titanium. In: Transactions of the Indian Institute of Metals, 36 (2). pp. 101-105.

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Abstract

Stress corrosion cracking of Al-4.58Zn-0.24Ti [84722-30-5] and Al-4.84Cu-0.28%Ti [84722-28-1] was investigated at constant strain rate $0.5 x 10^{-3}$ 2.5x$10^{-5}/s$ in 1 M NaCl solution at room temp. From the decrease in tensile strength and ductility due to the exposure, the alloys exhibited a critical strain rate of apprx. $10^{-4}/s$, below which failure occurred predominantly by stress corrosion cracking and above which failure occurred mainly by mech. fracture. The alloys were more resistant in the cold-worked than in the annealed or aged conditions. The Ti addition to the Al-Cu alloy increased the stress corrosion resistance, but was detrimental to the Al-Zn alloy.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to The Indian Institute of Metals
Keywords: stress corrosion resistance;strain rate
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 10 Apr 2008
Last Modified: 27 Aug 2008 13:18
URI: http://eprints.iisc.ernet.in/id/eprint/13611

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