Effect of Annealing Temperature on the Precipitation Behavior and Texture Evolution in a Warm-Rolled P-Containing Interstitial-Free High Strength Steel
Effect of Annealing Temperature on the Precipitation Behavior and Texture Evolution in a Warm-Rolled P-Containing Interstitial-Free High Strength Steel
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DOI：
10.1007/s40195-014-0072-0
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发表时间：
2014-06
期刊：
影响因子：
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通讯作者：
Jiecen Zhang;Yu-hao Cao;Guangwei Jiang;H. Di
中科院分区：
文献类型：
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作者：
Jiecen Zhang;Yu-hao Cao;Guangwei Jiang;H. Di
利用透射电镜和电子背散射衍射技术研究了退火温度对一种温轧无铁素体高强钢的析出行为和织构演变的影响。结果表明，在650 °C退火时，FeTiP析出，且随着退火温度的升高，FeTiP析出数量急剧增加，直至800 °C。TiC和（Ti，Nb）C的析出对FeTiP的形核有一定的影响。基体中几乎不存在FeTiP和大体积分数的TiC和（Ti，Nb）C被认为是导致尖锐的γ纤维织构的主要原因。由于FeTiP引起的边界钉扎效应较弱，且基体中间隙C原子较少。因此，在800 °C下退火导致最高强度的γ纤维织构。
By using transmission electron microscopy and electron back-scattered diffraction, the effect of annealing temperature on the precipitation behavior and texture evolution in a warm-rolled interstitial-free high strength steel was studied. The results indicated that fine FeTiP could precipitate at 650 °C, and the number of those precipitates increased greatly with the increasing annealing temperature until 800 °C. Furthermore, the nucleation of FeTiP was influenced by the precipitation of TiC and (Ti, Nb) C. The near absence of FeTiP and a large volume fraction of TiC and (Ti, Nb) C in matrix are envisaged to be primarily responsible for the sharp γ-fiber texture. As the boundary pinning effect caused by FeTiP is weak and there are less interstitial C atoms in matrix. Thus, annealing at 800 °C leads to the highest intensity ofγ-fiber texture.