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首页> 外文期刊>Materials Science and Technology: MST: A publication of the Institute of Metals >Characterisation on Al-bearing hot-rolled TRIP steel produced through isothermal bainite transformation
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Characterisation on Al-bearing hot-rolled TRIP steel produced through isothermal bainite transformation

机译：通过等温贝氏体转化产生的耐轧热轧钢钢的特性

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摘要

In this study, an energy-efficient processing route involving hot rolling and on-line heat treatment was proposed, which is applied to Nb-alloyed and Al-containing hot-rolled TRIP steel. The experiments were carried out involving hot rolling and on-line heat treatment, where the samples were subjected to different bainite hold times. The results shows that during isothermal bainite transformation, film-like and blocky retained austenite were present in microstructures at bainite hold times of 10 and 20 min. The sample subjected to bainite hold time of 20 min exhibited excellent mechanical properties, with tensile strength of 839 MPa, total elongation of 38% and product of strength and elongation of 31.9 GPa%. The instantaneous work hardening exponent increased gradually with true strain at bainite hold time of 20 min.
机译：在本研究中，提出了一种涉及热轧和在线热处理的节能加工途径，其应用于Nb合金化和含Al热轧钢钢。 进行涉及热轧和在线热处理的实验，其中样品经受不同的贝氏体持续时间。 结果表明，在等温贝氏体转化期间，胶片状和嵌段保留的奥氏体存在于贝氏体的微观结构中，在10和20分钟的诱饵中。 经过贝氏体保持时间为20分钟的样品表现出优异的机械性能，拉伸强度为839MPa，总伸长率为38％，产品的产物和伸长率为31.9GPa％。 瞬时工作强化指数在贝氏体保持时间为20分钟，逐渐增加。

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