杨亮,董建新,何智勇,张麦仓

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

利用光学金相显微镜和扫描电子显微镜研究了690合金一次冷轧管在中间退火过程中的组织演变规律,以及不同固溶处理制度对690合金二次冷轧管(成品尺寸管)的晶粒度和碳化物回溶行为的影响,并建立了退火过程中再结晶晶粒长大方程。试验结果表明:一次冷轧管中间退火最优工艺是1100℃/5 min,所建立的晶粒长大模型预测结果与实验值吻合很好,成品管经1100℃/3 min固溶后,平均晶粒尺寸在23.5μm左右,晶粒组织均匀,碳化物完全溶解。

关键词(KeyWords)： 690合金管;退火;晶粒长大;固溶处理;冷轧

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点资助项目(50831008);; 国家“863”计划项目(2008AA031703)

作者(Author): 杨亮,董建新,何智勇,张麦仓

DOI: 10.13289/j.issn.1009-6264.2011.12.020

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