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Title: Improvement Of Corrosion Resistance Of High-strength Aluminum Alloy By Fine-particle Bombarding Treatment
Author: T. Morita, A. Sakamoto, C. Kagaya, H. Nakaguchi
Source: Conf Proc: ICSP-10 Tokyo, Japan 2008
Publication year 2008
Document number: 2008070
Number of pages: 6
Abstract:
ABSTRACT
This study was conducted to investigate the effect of fine-particle bombarding (FPB) treatment on corrosion resistance of high-strength aluminum alloy. When the FPB
treatment was carried out with fine particles of titanium, zinc or tin, the elements composing those particles were diffused over the surface and residual stress was
introduced. In corrosion test, FPBed bolt-type specimens were immersed into 3 % salt
water maintained at 373 K. During this test, the specimens were fixed by special fixtures to apply high tensile stress. After immersing the specimens in the salt water until
345.6 ks (4 days), 604.8 ks (7 days) and 864 ks (10 days), their corrosion features were observed on the cross-section in detail. The results showed that the corrosion
resistance of the aluminum alloy was greatly improved by the FPB treatment and there was almost no corrosion on each FPBed specimens until 345.6 ks.
KEY WORDS
Fine-Particle Bombarding, Aluminum Alloy, Corrosion Resistance, Salt Water, Residual Stress
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This page last revised: 03/22/2010