Tailoring of mechanical properties of a side sill part made of martensitic stainless steel by press hardening
Tailoring of mechanical properties of a side sill part made of martensitic stainless steel by press hardening
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通过模压硬化调整马氏体不锈钢制成的侧梁零件的机械性能
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
D. Landgrebe
中科院分区：
文献类型：
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作者：
E. Meza;A. Rautenstrauch;V. Kräusel;D. Landgrebe
对1.4034马氏体不锈钢薄板合金进行了常规压制硬化工艺研究。在前期工作的基础上，采用常规工艺参数下的压制硬化工艺，制造出了具有定制力学性能的侧梁试件。对所生产的零件的显微组织和力学性能进行了表征。机械性能的定制包括在单个部件中开发具有完全不同机械性能的两个部分。为了实现这一点，在结晶化处理期间，用耐火材料将半个坯料隔热。这避免了绝热侧的加热，直到达到软化温度。因此，只有非绝缘侧通过淬火硬化。此外，根据结晶化温度，可以调节所得的机械性能。
The present work deals with a technological study to integrate the 1.4034 martensitic stainless steel sheet alloy in the conventional press hardening process. Based on preliminary work, side sill demonstrators with tailored mechanical properties were manufactured by press hardening under conventional process parameters. The resulting microstructure and mechanical properties of the produced parts were characterized. The tailoring of the mechanical properties consists of the development of two sections with completely different mechanical properties in a single part. To achieve this, a half of the blank was insulated with a refractory during austenitization treatment. This avoided the heating of the insulated side until the austenitization temperature. Therefore, only the non-insulated side was hardened by quenching. Moreover, depending on the austenitization temperature the resulting mechanical properties can be adjusted.