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首页> 外文会议>International Conference on Microalloying for New Steel Processes and Applications; 20050907-09; Basque Country(ES) >TRIP-Assisted Multiphase Steels with Niobium Additions. Microstructures and Properties
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TRIP-Assisted Multiphase Steels with Niobium Additions. Microstructures and Properties

机译：TRIP辅助添加铌的多相钢。显微组织和性能

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摘要

It seems completely clear that the combination within the same microstructure of various steel phases (ferrite, bainite, martensite) and the existence of the TRIP effect (i.e. a mechanically induced martensitic transformation) improves in a large way the properties of strength and ductility of low-alloy steels. TRIP-aided multiphase steels have been studied for several years and arouse a growing industrial interest. This project deals with the influence of a large Nb addition on the microstructure and mechanical properties of TRIP-assisted multiphase steels. It is shown that Nb influences in a large way the different phase transformations as well as the recrystallisation of the ferrite matrix occurring during the heat-treatment of cold-rolled TRIP-aided steels. As a consequence, the mechanical properties also depend on the parameters of the thermomechanical process and on the content and stability of the retained austenite.
机译：似乎完全清楚的是，在各种钢相（铁素体，贝氏体，马氏体）的相同组织中的结合以及TRIP效应（即机械诱导的马氏体相变）的存在在很大程度上改善了低强度钢的性能和延展性。 -合金钢。 TRIP辅助多相钢已经研究了数年，并引起了越来越多的工业兴趣。该项目涉及大量添加的铌对TRIP辅助多相钢的组织和力学性能的影响。结果表明，Nb在很大程度上影响了在TRIP辅助冷轧钢热处理过程中发生的不同相变以及铁素体基体的再结晶。结果，机械性能还取决于热机械过程的参数以及残余奥氏体的含量和稳定性。

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