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首页> 外文期刊>Journal of Materials Engineering and Performance >Investigation of the Hot Stamping Process for TRIP Steel with High Strength and High Ductility
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Investigation of the Hot Stamping Process for TRIP Steel with High Strength and High Ductility

机译：高强度和高延展性跳闸钢热冲压工艺的研究

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摘要

In order to obtain the products with high strength and ductility, the hot stamping technology of TRIP steel has been getting more attention in recent years. In this study, the effects of cooling rate on the mechanical properties of a typical TRIP780 steel used in hot stamping process were investigated with tensile tests, bending tests and impact tests. It was found that even though a lower cooling rate for the quenching of TRIP780 steel led to the formation of the bainite and ferrite mixture phases, the mechanical properties of the material containing these phases were similar to those of the material containing martensite only. TRIP780 steel exhibited twice the elongation with a similarly high strength as compared with the conventional boron steel, and its mechanical properties are insensitive to cooling rate, which was approved by the hot stamping experiment of a U-cap part.
机译：为了获得具有高强度和延展性的产品，近年来，旅行钢的热冲压技术一直受到更多关注。 在这项研究中，用拉伸试验，弯曲试验和冲击试验研究了冷却率对典型的速度冲压过程中使用的典型Trip780钢的力学性能的影响。 发现即使淬火TRIP780钢的淬火导致贝氏体和铁氧体混合相的淬火较低的冷却速率，含有这些相的材料的机械性能与仅含有马氏体的材料的机械性能类似。 与传统的硼钢相比，Trip780钢的伸长率与类似的高强度相比，其机械性能对冷却速率不敏感，这是由U形帽部分的热冲压实验批准的冷却速度。

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