Numerical Simulation of Deformation Behavior of TRIP Steels.
Numerical Simulation of Deformation Behavior of TRIP Steels.
复制标题
TRIP 钢变形行为的数值模拟。
DOI：
10.1299/kikaia.60.1652
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
T. Iwamoto
中科院分区：
文献类型：
--
作者：
Y. Tomita;H. Harada;T. Iwamoto
相变诱导塑性（TRIP）钢具有良好的机械性能，如高加工硬化特性、韧性和强度。然而，应变诱发的马氏体转变强烈依赖于施加的温度和应变速率，并且在相当有限的情况下实现机械性能的适当改进。为了获得所需的机械性能，通过采用 Olson 和 Cohen 的应变诱导马氏体转变动力学模型，开发了一种本构模型，该模型可以适当地预测包括各种变形条件下的转变在内的变形行为。然后，考虑马氏体相变引起的潜热，采用热电偶有限元方法模拟了SUS304（18-8）圆柱体在不同环境温度和不同应变率下的变形行为。分别讨论了提高材料的强度、延展性和韧性等机械性能的可能性。
The transformation-induced plasticity (TRIP) steel possesses such favorable mechanical properties as high work-hardening characteristics, tenacity and strength. The strain-induced martensitic transformation, however, strongly depends on the temperature and strain rate imposed, and an appropriate improvement of mechanical properties is realized under quite restricted circumstances. To obtain the required mechanical properties, a constitutive model which can suitably predict the deformation behavior including transformation under a wide range of deformation conditions has been developed by employing Olson and Cohen's model for strain induced martensitic transformation kinetics. Then, deformation behavior of SUS304 (18-8) cylinder has been simulated under different environmental temperature with different strain rates by thermocoupled finite element method accounting for the latent heat induced by martensitic transformation. The possibility of the improvement of such mechanical properties of the material as strength, ductility and toughness has been individually discussed.