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首页> 外文期刊>International Materials Reviews >'Back-annealIng' of cold rolled steels through recovery and/or partial recrystallisation
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'Back-annealIng' of cold rolled steels through recovery and/or partial recrystallisation

机译：通过回收和/或部分重结晶对冷轧钢进行“回退火”

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摘要

An evaluation of the 'back-annealing' approach for the production of high strength steel sheet is presented. This approach is different from those used in conventional current practice, e.g. for rephosphorised, microalloyed, dual phase, multiphase and transformation induced plasticity steels. The principle is to retain as much as possible of the hardening due to cold rolling while gaining ductility by controlled low temperature heat treatment (back-annealing) through recovery and/or partial recrystallisation. Unlike other processes to achieve high strength, this approach offers the possibility of cost effective high speed production in continuous annealing lines. The important role of 'back-annealing' or recovery annealing in the production of ultrafine grains in steels and in the development of higher strength ultra-thin strip cast products has also been widely recognised. In the present review, the fundamentals of the back-annealing process are discussed in terms of the constituent phenomena of recovery and recrystallisation and their kinetics. The challenges of back-annealing in steels, in terms of the production of sheets of thin gauges, are identified and possible methods to overcome these are suggested. Theoretically model approaches to the back-annealing process are also discussed.
机译：介绍了一种用于生产高强度钢板的“后退火”方法的评估。这种方法不同于传统的当前实践中使用的方法，例如用于再磷化，微合金化，双相，多相和相变诱发塑性钢。原理是尽可能保留由于冷轧引起的硬化，同时通过恢复和/或部分重结晶通过受控的低温热处理（反向退火）获得延展性。与其他获得高强度的工艺不同，这种方法提供了在连续退火生产线上进行经济高效的高速生产的可能性。人们还普遍认识到“回火”或恢复退火在钢中超细晶粒的生产以及高强度超薄带钢铸造产品的开发中的重要作用。在当前的审查中，从恢复和再结晶的组成现象及其动力学方面讨论了退火工艺的基本原理。在薄规格薄板的生产方面，确定了钢中进行反向退火的挑战，并提出了克服这些挑战的可行方法。从理论上讲，该模型还适用于反向退火过程。

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