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首页> 外文会议>International Conference on New Developments in Advanced High-Strength Sheet Steels >Microstructure and Tensile Properties of TRIP-aided CR Sheet Steels: TRIP Dual and QP
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Microstructure and Tensile Properties of TRIP-aided CR Sheet Steels: TRIP Dual and QP

机译：跳闸辅助CR板钢的微观结构和拉伸性能：跳闸双和Q＆P.

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摘要

Increasing automobile safety requirements have resulted in the demand for sheet steels with tensile strength above 1000-1200 MPa having sufficient formability. In recent years new metallugrical routes have been developed such as TRIP dual and Q&P (Quenching and Partitioning). TRIP dual is produced by the direct isothermal holding in bainite or martensite regions from fully austenitized condition. Q&P utilizes isothermal holding at low temperature after partial martensite transformation. Both TRIP dual and Q&P processes have similar microstructures of retained austenite in the martensitic/bainitic matrix. However, there is a lack of systematic comparison of microstructure and mechanical properties between these two processes. This study presents microstructural features as well as the balance of tensile properties (elongation and yield ratio), stretch flangeability and bendability of TRIP dual and Q&P steels in comparison with conventional AHSS sheets such as TRIP and DP steels of the same strength.
机译：增大汽车的安全要求已经导致对薄钢板具有抗拉强度具有充分的加工性的需求以上1000-1200兆帕。近年来新metallugrical路线已经被开发，如TRIP双和Q＆P（淬火和分配）。 TRIP双重通过在贝氏体或马氏体区域直接等温保持从完全奥氏体化条件制备。 Q＆P利用在部分马氏体转变之后的低温等温保持。既TRIP双和Q＆P工艺具有在马氏体/贝氏体基体的残余奥氏体的类似的微结构。但是，存在缺乏微结构的系统的比较和这两个过程之间的机械性质。这项研究提出微观结构特征以及拉伸性能（伸长率和屈服比）的平衡，与常规的AHSS片材如TRIP和相同强度DP钢比较延伸凸缘性和TRIP的弯曲性双重和Q＆P钢。

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