摘要
采用热模拟方法,模拟不同形态的针状铁素体,板条状铁素体,边界状铁素体。根据四点弯曲缺口试样应力场的有限元计算以及测定不同形态铁素体的解理断裂应力及断裂吸收能量E。结果表明,试样的σf/σy随铁素体形态的变化趋势和能量E相一致,而且σf/σy和材料的韧性具有较好的相关性。
In thermal Simulated way,Simulating specimens of needle ferrite,lath ferrite,boundary ferrite of all kind of morphology. Based on the result of a FEM analysis of pure bending notched specimen,cleavage frauture stress ,fracture absorbed energy E of all kind of morphology was measured. The result indicated that the varying tren-dency of with morphology of ferrite is consisted with the varying trendency of energy E with morphology and size of ferrite,and is interrelated materials toughness.
