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Effect of RE on Granulation of Eutectic Carbide in Ledeburite Steel
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作者 王树奇 姜启川 +1 位作者 崔向红 何镇明 《Journal of Rare Earths》 SCIE EI CAS CSCD 1998年第4期51-55,共5页
The effect of RE on granulation of eutectic carbide in ledeburite steel was studied. The mechanism of RE action was also discussed. The results show that by addition of RE compounds, the austenitic grains and eutectic... The effect of RE on granulation of eutectic carbide in ledeburite steel was studied. The mechanism of RE action was also discussed. The results show that by addition of RE compounds, the austenitic grains and eutectic carbide are fined, and the amount of divorced eutectic increases. Moreover, crystal defects, such as twins in M 7C 3, increase and the segregation of Cr and Mo decreases, which reduces the stability of carbide. Thus RE can accelerate the dynamic processes of eutectic carbide granulation. The satisfactory result of granulation of carbide was obtained in the ledeburite steel modified by RE compounds. 展开更多
关键词 Rare earths Ledeburite steel Eutectic carbide Heat treatment GRANULATION
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