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首页> 外文会议>International Workshop on Advanced Metallic Materials and Processing Techniques for Aeronautical Applications; 20051118-20; Nanjing(CN) >Spheroidizing mechanism and practice of eutectic carbides in Fe-W-C alloy
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Spheroidizing mechanism and practice of eutectic carbides in Fe-W-C alloy

机译：Fe-W-C合金中共晶碳化物的球化机理及实践

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摘要

The influences of Ce, K and Na on the structures and properties of Fe-W-C alloy were investigated, and the idea estimating spheroidizing effect of carbides using circular degree(C. D) was put forward. The result shows that eutectic carbide turns into sphericity from network after modification, carbide is refined and uniformly distributed and C. D of eutectic carbide increases. The mechanism of carbide spheroidizing was analyzed. The impact toughness and abrasion resistance of Fe-W-C obviously improve with the rise of C. D of carbides. The service life of modified Fe-W-C roll is 30% higher than that of high chromium cast iron roll, while its production cost is reduced by 30%.
机译：研究了Ce，K和Na对Fe-W-C合金组织和性能的影响，提出了用圆度（C. D）估算碳化物球化效果的思路。结果表明：共晶碳化物经改性后由网状转变为球状，细化并均匀分布，共晶碳化物的C.D增加。分析了碳化物球化的机理。 Fe-W-C的冲击韧性和耐磨性随着碳化物C.D的升高而明显提高。改性的Fe-W-C轧辊的使用寿命比高铬铸铁轧辊的使用寿命高30％，而生产成本却降低了30％。

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