Stress Corrosion Cracking Susceptibility of LD10 Aluminum Alloy

Journal of Chinese Society for Corrosion and protection

2013, Vol. 33

Issue (4): 347-350 DOI:

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Stress Corrosion Cracking Susceptibility of LD10 Aluminum Alloy

CHANG Xinlong, LIU Wanlei, LAI Jianwei, ZHANG Xiaojun

The Second Artillery Engineering University of PLA, Xi’an 710025, China

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Abstract The stress corrosion cracking (SCC) of the LD10 alloy with pro-cracked double cantilever beam (DCB) in 3.5%NaCl, N₂O₄, unsymmetric dimethyl hydrazine (UDMH) and H₂O solutions was investigated by the method of stress corrosion tests. The crack growth rate and the threshold stress intensity factors were obtained. The fracture surface of the samples was observed by SEM. The results showed that the corrosion of the LD10 alloy was the most serious in 3.5%NaCl solution, secondary in N₂O₄ solution, and the lightest in UDMH and H₂O solution.

Key words: LD10 alloy stress corrosion corrosion mechanism

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CHANG Xinlong,LIU Wanlei,LAI Jianwei,ZHANG Xiaojun. Stress Corrosion Cracking Susceptibility of LD10 Aluminum Alloy. Journal of Chinese Society for Corrosion and protection, 2013, 33(4): 347-350.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2013/V33/I4/347

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