IMPROVEMENT OF ADHESION OF THE SCALE FORMED ON Co-40Cr(wt%) ALLOY BY YTTRIUM IMPLANTATION

J Chin Soc Corr Pro

1999, Vol. 19

Issue (1): 50-54 DOI:

Research Report

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IMPROVEMENT OF ADHESION OF THE SCALE FORMED ON Co-40Cr(wt%) ALLOY BY YTTRIUM IMPLANTATION

Huiming Jin;;;

中科院金属所;金属腐蚀与防护国家重点实验室

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Abstract Acoustic emission (AE)and SEM/EDXS were used to study the cracking and spalling behavior of the scale formed on Co-40Cr aloy after 20h isothermal oxidation in air at 1000℃.By comparing the cracking and spalling behavior of scale formed on 3×10 16Y+/cm2 and 3×10 17Y+/cm2 implanted and non-implanted Co-40Cr alloys, it was found that yttruim implantation greatly improved the anti-cracking and anti-spalling properties of the scale.AE was used to study the distribution of pre-existing defects at the scale/ alloy interface.The improvement of adhesion of the scale formed on yttrium-implanted aloy was attributed to the decrease in the size and number of pre-existing defects at the scale/ alloy interface

Key words: Co-40Cr alloy acoustic emission ion implantation rare earth effect(REE) conglutinate

Received: 18 July 2005

Corresponding Authors: Huiming Jin

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Cite this article:

Huiming Jin. IMPROVEMENT OF ADHESION OF THE SCALE FORMED ON Co-40Cr(wt%) ALLOY BY YTTRIUM IMPLANTATION. J Chin Soc Corr Pro, 1999, 19(1): 50-54 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1999/V19/I1/50

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