The cast ingots prepared using sand mould and metal mould were analyzed to investigate the effect of cooling rates on morphologies and characters of M2C eutectic carbides in M2 high speed steel.

• 采用砂型和金属型铸造制备M2高速钢铸锭,研究了冷却速度变化对高速钢M2C共晶碳化物形态及性质的影响,探讨了M2C共晶碳化物形态变化的机理。