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OALib Journal期刊
ISSN: 2333-9721
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超快速退火对nb+ti--if钢组织和织构的影响
Keywords: 金属材料,nb+ti-if钢,超快速退火,晶粒尺寸,织构
Abstract:
？研究了超快速退火对一种冷轧变形量为94.2%的nb+ti--if钢的微观组织和织构的影响。结果表明:超快速退火(升温速度为300℃/s)提高了钢的再结晶完成温度,整个再结晶退火可在短至0.41s内完成。与普通退火(升温速度为20℃/s)后钢的再结晶组织相比,超快速退火处理后晶粒平均尺寸由12.98？μm细化到10.12？μm,晶粒长大速度由~3？μm/s提高到~23？μm/s,且再结晶晶粒内存在大量缠结位错。在极短时间内,超快速退火再结晶织构仍以均匀、锋锐的{111}//nd有利深冲性能的γ织构为主,且避免了其它α织构的生成,有利于使退火板具有良好的成形性能。
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