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首页> 外文期刊>ISIJ international >Influence of TIN particle precipitation state on static recrystallisation in structural steels
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Influence of TIN particle precipitation state on static recrystallisation in structural steels

机译：TIN颗粒沉淀状态对结构钢静态再结晶的影响

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This paper studies the influence of different Ti and N contents, which give rise to different precipitation states at the reheating temperatures, on the static recrystallisation of austenite in structural steels. The influence of the precipitation state has been quantified by the changes in the activation energy value (Q_x), which measures the greater or lesser facility for grain boundary self-diffusion, the mechanism that is responsible for recrystallisation. A maximum has been obtained for the activation energy which corresponds to the finest precipitate distribution and a Ti/N ratio close to unity, although the excess Ti content in solution also contributes to a considerable increase in Q_x. The values obtained for the driving forces of recrystallisation have always been greater than the pinning forces, allowing static recrystallisation to take place irrespective of the chemical composition of the steel and the strain applied.
机译：本文研究了不同含量的Ti和N，它们在再加热温度下会导致不同的析出状态，对结构钢中奥氏体的静态再结晶。沉淀状态的影响已通过活化能值（Q_x）的变化进行了量化，该值测量或多或少地促进了晶界自扩散，而晶界自扩散是造成再结晶的机制。尽管溶液中过量的Ti含量也导致Q_x的显着增加，但活化能已获得最大值，该最大值对应于最细的沉淀物分布和接近于1的Ti / N比。所获得的用于重结晶驱动力的值始终大于钉扎力，从而允许进行静态重结晶，而与钢的化学成分和施加的应变无关。

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