Relationship between yield strength and grain size for a bimodal structural ultrafine-grained ferrite/cementite steel
Relationship between yield strength and grain size for a bimodal structural ultrafine-grained ferrite/cementite steel
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DOI：
10.1016/j.scriptamat.2007.06.062
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发表时间：
2007-11
影响因子：
6
通讯作者：
Mingchun Zhao;F. Yin;T. Hanamura;K. Nagai;A. Atrens
中科院分区：
文献类型：
--
作者：
Mingchun Zhao;F. Yin;T. Hanamura;K. Nagai;A. Atrens
通过退火，在温轧超细晶铁素体/铁素体钢的显微组织中形成了双峰铁素体晶粒尺寸分布。屈服强度可以通过Hall-Petch关系来说明，其中适当的晶粒尺寸是从大尺寸区域和小尺寸区域中的平均晶粒尺寸的倒数的面积分数确定的平均铁素体晶粒尺寸。
A bimodal ferrite grain size distribution was developed in the microstructure of a warm-rolled ultrafine-grained ferrite/cementite steel by annealing. The yield strength could be illustrated by the Hall–Petch relation, where the appropriate grain size was the average ferrite grain size determined from the area fraction of the inverse of the average grain size in both the large- and small-sized regions.