Ridging Control in Transformable Ferritic Stainless Steels
Ridging Control in Transformable Ferritic Stainless Steels
复制标题
DOI：
10.1007/s11661-011-0824-7
复制
发表时间：
2012-01-01
影响因子：
2.8
通讯作者：
de Cooman, Bruno C.
中科院分区：
文献类型：
--
作者：
Mola, Javad;Jung, Ilchan;de Cooman, Bruno C.
介绍了一种改善可变形铁素体不锈钢抗起皱性能的合金设计概念。其基于在铸锭均热温度下实现小的γ相分数。然后，在热轧的早期阶段，γ相分数增加到最大值。铁素体基体中γ相岛的形核增加了转变铁素体的分数。由α-> γ和γ-> I +/-转变产生的晶体学取向的多样性导致铸态织构的显著弱化和增加的抗起脊性。
An alloy design concept leading to an improved ridging resistance in the transformable ferritic stainless steels is introduced. It is based on achieving a small gamma-phase fraction at the ingot soaking temperature. The gamma-phase fraction is then increased to a maximum value during the early stages of hot rolling. The nucleation of gamma-phase islands in the ferritic matrix increases the fraction of transformed ferrite. The multiplicity of crystallographic orientations resulting from the alpha ->gamma and gamma -> I +/- transformations leads to a pronounced weakening of the as-cast texture and an increased ridging resistance.