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Evolutions of texture and grain boundary plane distributions in a ferritic stainless steel
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作者 方晓英 王卫国 +2 位作者 郭红 秦聪祥 周邦新 《Journal of Central South University》 SCIE EI CAS 2012年第12期3363-3368,共6页
The grain size, textures and grain boundary plane distributions in a cold-rolled and annealed ferritic stainless steel were investigated by means of EBSD techniques. The results show that, following cold rolling with ... The grain size, textures and grain boundary plane distributions in a cold-rolled and annealed ferritic stainless steel were investigated by means of EBSD techniques. The results show that, following cold rolling with the thickness reduction of 85%, relatively low temperature (780℃) annealing brings an extremely sluggish grain growth and no grain texture develops when the annealing time varies from 5 min to 480 min. The free energy reduction of the system is mainly caused by the grain boundary plane re-orientation in addition to minor grain growth because the distributions of grain boundary planes are moderately preferred on { 100} according to the five parameter analyses (FPA) concerning the grain boundary plane characteristics. However, in the case of high-temperature (1 000 ℃) annealing, the average grain size does not increase until annealing time is prolonged to 90 min, after which extensive grain growth occurs and strong {100}(hkl) texture emerges whereas nearly random grain boundary plane distributions are observed. The free energy reduction of the system is most likely attributed to the selective growth. 展开更多
关键词 grain texture grain boundary plane EBSD ferritic stainless steel
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