EA4T钢消除带状组织和细化晶粒的新工艺探索

Study on New Process of Elimination of Banded Structure and Grain Refinement for EA4T Steel

为了解决EA4T钢存在的带状组织和组织不均匀问题,设计了新的热处理工艺。实验结果表明,经新的热处理工艺处理后,材料中的部分带状组织消除,奥氏体晶粒细化,组织均匀性明显改善,综合力学性能显著提高。

New heat treatment process for the elimination of the banded structure and grain refinement in EA4T steel was studied. The results show that the new heat treatment process is effective to eliminate parts of the banded structure and refine anstenite grain size. Microstmcture uniformity and comprehensive mechanical performance are is improved obviously.