丁雨田,高钰璧,豆正义,高鑫,贾智

• 1:兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室

摘要(Abstract)：

通过室温压缩试验、数学模型拟合、金相分析以及洛氏硬度计等手段,研究了冷变形GH3625合金管材中间退火过程中的组织演变规律,并建立了中间退火过程中再结晶晶粒长大方程。研究表明:随着冷变形量的增加,合金组织均匀性逐渐变好,硬度值显著增加,特别是冷变形量0~50%的阶段更为明显;随着退火温度的升高,晶粒长大速率加快;GH3625合金管材在1120℃/15 min/AC下进行退火处理,组织为均匀细小的完全再结晶晶粒,是适宜的中间退火工艺;所建立的晶粒长大模型预测结果与实测值吻合较好。

关键词(KeyWords)： GH3625合金;冷变形;中间退火;晶粒长大;平均晶粒尺寸

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51661019);; 甘肃省重大科技专项项目(145RTSA004)

作者(Author): 丁雨田,高钰璧,豆正义,高鑫,贾智

DOI: 10.13289/j.issn.1009-6264.2017.02.029

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