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首页> 外文期刊>JFE technical report >Newly-Developed Ultra-High Tensile Strength Steels with Excellent Formability and Weldability
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Newly-Developed Ultra-High Tensile Strength Steels with Excellent Formability and Weldability

机译：新型超高拉伸强度钢，具有出色的成形性和焊接性

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摘要

JFE Steel has developed and commercialized ultra-high tensile strength steel series from TS780 MPa to 1 470 MPa with excellent formability and weldability which reduces weight and increases safety in collision when they are applied to the reinforcement parts around a cabin. Those ultra-high tensile strength steels are developed by applying JFE Steel's own technology, continuous annealing line water-quenching facilities which greatly contribute to reduce alloy elements in the steel. Especially, the TS1180 MPa steel which is expected to expand in application, excels in elongation. It is 1.5 times larger than the conventional one which is the same level with 980 MPa, and strech-flangeability has also been achieved as the same level with TS980 MPa. It is remarkable work-hardenability and bake-hardenability make it possible to replace hot-stamping parts.
机译：JFE Steel开发并商业化了从TS780 MPa到1470 MPa的超高抗拉强度钢系列，该系列产品具有出色的可塑性和可焊接性，可减轻重量并在将其应用于机舱周围的增强部件时提高碰撞安全性。这些超高抗拉强度钢是通过采用JFE Steel自身的技术，连续退火线淬火设备开发的，这些设备极大地减少了钢中的合金元素。尤其是有望在应用中扩展的TS1180 MPa钢，其伸长率极佳。它是在980 MPa相同水平下的传统压力的1.5倍，并且还具有与TS980 MPa相同水平的拉伸凸缘性。出色的加工硬化性和烘烤硬化性使更换热冲压零件成为可能。

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