Dendrite structure and microhardness of as-cast 4Cr5MoSiV1 steel between different homogenisation processes

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作者
Li, En [1 ]
Li, Changsheng [1 ]
Han, Yahui [1 ]
Ren, Jinyi [1 ]
Gao, Cairu [1 ]
Qiu, Chunlin [1 ]
机构
[1] Li, En
[2] Li, Changsheng
[3] Han, Yahui
[4] Ren, Jinyi
[5] Gao, Cairu
[6] Qiu, Chunlin
来源
Li, Changsheng (lics@ral.neu.edu.cn) | 1600年 / Taylor and Francis Ltd.卷 / 37期
关键词
Segregation (metallography) - Hot working - Cost effectiveness;
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摘要
The dendrite structure and hardness of 4Cr5MoSiV1 ingot at different homogenisation processes were studied in order to identify the most efficient and cost-effective heat treatment for this steel. The microsegregation and microhardness were analysed after different soak-times at 800 or 1200°C for single-stage treatments, and for two-stage treatments of different soaking times at both these temperatures. At the single-stage homogenisation treatment, it would be expected that with the increasing of soaking times, the homogenisation effect becoming better, and the higher temperature soak especially so. However, the two-stage homogenisation treatments could be more effective than single-stage treatment at the higher temperature. The two-stage treatments 800°C/3 h + 1200°C/1 h have better homogenisation effect than 1200°C/4 h. © 2021 Institute of Materials, Minerals and Mining.
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页码:1465 / 1475
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