本文用正、倒极图和ODF法研究了低碳钢板在不同冷轧和再结晶退火条件下,磷对再结晶织构的影响。用金相术、扫描电镜和电子探针研究了磷在钢中的分布和显微组织。结果发现,磷促进了与轧向平行的一组〈001〉和与轧面法向平行的一组〈111〉纤维织构的生成;这种作用与预退火温度密切相关,在390和590℃进行预退火就呈现,在490℃就抑制。在促进织构生成的预退火温度时产生晶内磷偏聚的异常显微组织。并认为这种纤维织构的形成与晶内磷偏聚有关。
The present work is to study the effect of phosphorus on the anneal-ing texture of a low carbon steel at different cold rolling and annealing conditionby means of pole-figure, inverse-pole figure and orientation distribution function(ODF) method. The microstructure and distribution of phosphorus in steel sheetare studied by means of metallography, scanning electron microscope (SEM) andelectron probe microanalysis (EPMA). The results show that phosphorus promotethe formation of the fiber texture of <001> parallel to the rolling direction and<111> normal to the sheet surface. The texture was found to be affected mainly bypreannealing temperatures, promoted at 390℃ or 590℃, and retarded at 490℃. Atthe preannealing temperature promoting the formation of texture, phosphorus segre-gation to the interior of grains is observed. It seems that the formation of the fi-ber texture may be associated with the segregation of phosphorus.
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