摘要
用浸水快冷模拟轧后快冷 ,研究了快冷工艺参数对GCr15钢最终组织和碳化物的影响。结果表明 ,控制终冷温度在 70 0～ 5 0 0℃范围内 ,能够改善淬火后碳化物的大小及分布 ,碳化物颗粒细小 ,分布均匀 ,碳化物网状级别由 2 .0级下降到 1.0级 ,球化级别由 1.0级提高到 2 .0～ 2 .5级。在相同的热处理工艺下 。
By submerging GCr15 steel rod in water to simulate rapid cooldown after rolling, the influence of cooling parameters on the ultimate structure and carbide of the steel is investigated. The results suggest that providing the cooling temperature is in a range of 700～500℃, the size and distribution of carbide after quenching are improved as the level of carbide network decreased from 2.0 to 1.0, the level of spheroidite increased from 1.0 to 2.0～2.5. The quenching hardness of sphoroidized samples after rapid cooldown by submerging in water is higher than that of annealing ones after rolling though through the same heat treatment.
出处
《材料开发与应用》
CAS
2002年第4期24-28,共5页
Development and Application of Materials
