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研究了轧辊用合金白口铸铁的几种材质中不同碳化物形态和不同基体组织对热疲劳抗力的影响,找出了热疲劳裂纹的主要萌生源地和扩展通道.确认了在碳化物和基体中M23C6 和奥氏体的热疲劳抗力最佳
The effects of different carbide shapes and different matrix microstructures on the thermal fatigue resistance of several materials of the alloy white cast iron for roller were studied and the main initiation and propagation channels of thermal fatigue crack were found out.It was confirmed that the carbide and matrix In the M23C6 and austenitic thermal fatigue resistance best