Medium-Alloy Manganese-Rich Transformation-Induced Plasticity Steels
Medium-Alloy Manganese-Rich Transformation-Induced Plasticity Steels
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DOI：
10.1007/s11661-012-1402-3
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发表时间：
2013-01-01
影响因子：
2.8
通讯作者：
Bhadeshia, H. K. D. H.
中科院分区：
文献类型：
--
作者：
Suh, Dong Woo;Ryu, Joo Hyun;Bhadeshia, H. K. D. H.
依赖于相变诱发塑性的钢的锰浓度通常小于2wt%。最近的工作突出了含有约6wt%的锰的强韧性合金的潜力，但添加铝以允许适于快速生产的热处理。然而，高浓度的铝在连续铸造期间也引起困难。合金设计计算已经进行，以努力平衡这些相互冲突的要求，同时保持残余奥氏体的量和转变动力学。结果表明，可以通过调节碳和锰浓度来降低铝浓度，而不损害机械性能或转变动力学。残余奥氏体的变形诱导的转变定量解释，对于一系列合金，在考虑到残余奥氏体的非常精细的状态的驱动力方面。DOI：10.1007/s11661-012-1402-3（C）The Minerals，Metals & Materials Society and ASM International
The manganese concentration of steels which rely on transformation-induced plasticity is generally less than 2 wt pct. Recent work has highlighted the potential for strong and ductile alloys containing some 6 wt pct of manganese, but with aluminum additions in order to permit heat treatments which are amenable to rapid production. However, large concentrations of aluminum also cause difficulties during continuous casting. Alloy design calculations have been carried out in an effort to balance these conflicting requirements, while maintaining the amount of retained austenite and transformation kinetics. The results indicate that it is possible by adjusting the carbon and manganese concentrations to reduce the aluminum concentration, without compromising the mechanical properties or transformation kinetics. The deformation-induced transformation of retained austenite is explained quantitatively, for a range of alloys, in terms of a driving force which takes into account the very fine state of the retained austenite. DOI: 10.1007/s11661-012-1402-3 (C) The Minerals, Metals & Materials Society and ASM International 2012