Microstructure and Eutectic Carbide Morphology of the High Speed Steel Strips Produced by Twin Roll Strip Casting Process

材料科学技术（英文）, 2003, 19(5): 472-474.

^1, , ^2, , ^3, , ^4,

1.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China

2.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China

3.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China

4.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China

基金项目: the Natural Science Foundation of Liaoning Province under thecontract No(2001101021) This study was financially supported by both the National Nat-ural Science Foundation of China under the contract No(59995440)

Microstructure and Eutectic Carbide Morphology of the High Speed Steel Strips Produced by Twin Roll Strip Casting Process

Keywords： Twin roll strip casting

The M2 high-speed steel strip was produced by using the laboratory scale twin roll strip caster. The microstructureand eutectic carbide morphology of thus produced products were observed and analyzed, and the comparison ofthose with conventional products was carried out. The effects of the processing parameters such as the meltingtemperature, the pouring temperature, rolling speed and separating force on the microstructure and eutectic carbidemorphology and their distribution were analyzed. The spheroidizing process of the strips in the annealing process wasinvestigated. The relations between the growth and spheroidizing of the eutectic carbide and the annealing technologywere obtained, and the mechanism of the twin roll strip casting process improving the eutectic carbide spheroidizingwas discussed. The theoretical instruction for determining the subsequent treatment process was provided.

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Microstructure and Eutectic Carbide Morphology of the High Speed Steel Strips Produced by Twin Roll Strip Casting Process

参考文献