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Abstract A study has been made of the effects of twenty metal additions in small amount on the corrosion resistance in 3% NaCl solution of Al-Zn euteetic fillets on pure aluminum as well as on LY12 (2024) base metals as determined by weight loss and by metallographic technique. It is shown that corrosion resistance effectively increses with the addition of small amounts of alkaline earth and rare earth elements, such as Be, Mg, Sr and La. The addition of heavy metals, such as Bi, Sn, Pb, Cd, Tl, Cu, Ni and Ga causes serious intercrystalline corrosion in the fillets. Less effective are the additions of transition metals and alkali metals.
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Received: 25 April 1982
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Cite this article:
Han Wanshu Lin Qianshan Liu Yusheng and Zhang Qiyun(Beijing University). THE EFFECT OF SMALL-AMOUNT OF METAL ADDITIONS ON THE CORROSION RESISTANCE OF Al-Zn FILETS ON THE ALLUMINUM BASE METALS. J Chin Soc Corr Pro, 1982, 2(2): 59-63.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1982/V2/I2/59
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