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首页> 外文期刊>JFE technical report >Recent Development in Microstructural Control Technologies.through the Thermo-Mechanical Control Process (TMCP) with JFE Steel's High-Performance Plates
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Recent Development in Microstructural Control Technologies.through the Thermo-Mechanical Control Process (TMCP) with JFE Steel's High-Performance Plates

机译：JFE Steel的高性能钢板通过热机械控制工艺（TMCP）在微结构控制技术方面的最新发展

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摘要

Thermo-mechanical control process (TMCP) is a microstructural control technique combining controlled rolling and cooling. Thermo-mechanical control process is used to obtain excellent properties for steel plates, such as high strength, excellent toughness, and excellent weldability. JFE Steel has been developing TMCP technologies ever since it started operating its accelerated cooling facility, OLAC~(R) (On-Line Accelerated Cooling), in its plate mill at West Japan Works (Fukuyama) in 1980 (the world's first industrial accelerated cooling system ever built). In 1998, JFE Steel developed Super-OLAC, an advanced accelerated cooling system capable of cooling plates homogeneously at high cooling rates close to the theoretical limits. In 2004, the epoch-making on-line induction heating facility, HOP~(R) (Heat-treatment On-line Process), was also installed in the plate mill at West Japan Works (Fukuyama). High-strength steels, a grade of steel usually produced by the quenching and tempering (Q-T) process, can be toughened by refining the component carbides through rapid tempering by HOP. Because Super-OLAC is capable of accurately controlling the stop cooling temperature before tempering, JFE has managed to develop a new set of microstructural control techniques using M-A (martensite-austenite constituent) as the hard phase. These are unique techniques unachievable with the conventional Q-T process or conventional TMCP. These techniques have already been applied to various advanced products. In this paper, the fundamentals of microstructural control by TMCP, and the recent development of TMCP are described. Examples of the advanced high-strength plates produced in JFE Steel are also presented.
机译：热机械控制过程（TMCP）是一种结合了控制轧制和冷却的微结构控制技术。热机械控制过程用于获得钢板的优良性能，例如高强度，优良的韧性和优良的可焊接性。自从1980年JFE Steel在其位于日本西部工厂（福山）的中厚板轧机中开始运营其加速冷却设备OLAC〜（在线加速冷却）以来，一直在开发TMCP技术（世界上第一台工业加速冷却）系统）。 1998年，JFE Steel开发了Super-OLAC，这是一种先进的加速冷却系统，能够以接近理论极限的高冷却速率均匀地冷却板。 2004年，具有划时代意义的在线感应加热设备HOP〜（热处理在线过程）也安装在West Japan Works（福山）的中厚板轧机上。高强度钢是通常通过淬火和回火（Q-T）工艺生产的一种钢种，可以通过通过HOP进行快速回火来精炼成分碳化物来增韧。由于Super-OLAC能够在回火之前精确控制停止冷却温度，因此JFE设法开发了一套新的微结构控制技术，使用M-A（马氏体-奥氏体成分）作为硬相。这些是常规Q-T工艺或常规TMCP无法实现的独特技术。这些技术已经应用于各种先进产品。本文介绍了TMCP进行微结构控制的基础，以及TMCP的最新发展。还介绍了JFE Steel生产的高级高强度板的示例。

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