Analysis of the Thermomechanical Flow Behavior of Carburized Sheet Metal in Hot Stamping
Analysis of the Thermomechanical Flow Behavior of Carburized Sheet Metal in Hot Stamping
复制标题
渗碳金属板材热冲压热机械流动行为分析
DOI：
10.1007/978-3-030-75381-8_65
复制
发表时间：
--
期刊：
影响因子：
--
通讯作者：
Merklein
中科院分区：
文献类型：
--
作者：
Merklein
由于限制二氧化碳排放而减少燃料消耗是汽车工业轻量化设计的主要驱动力之一。在这种情况下，超高强度钢的热冲压已经发展成为制造安全相关部件的最先进工艺。在乘客安全和减轻重量方面，进一步的潜力在于部件的功能优化。先进行局部渗碳再进行热冲压是一种新的工艺变体，可实现定制性能，克服了现有工艺的局限性。由于渗碳后碳含量的变化，板材具有分级的机械性能。在这方面的贡献，温度，应变速率和渗碳对流动行为的影响将进行研究。为此，在Gleeble型物理模拟器中进行高温下的拉伸试验。用修正的Norton-Hoff硬化定律模拟了渗碳复相钢的流变曲线，并通过初始屈服应力分析了渗碳工艺对流变曲线的影响。此外，从拉伸试验的结果与激光超声传感器获得的相变行为。
The reduction of fuel consumption due to restrictions regarding CO2emissions is one of the major driving forces for lightweight design in the automotive industry. In this context, hot stamping of ultra-high-strength steels has developed to a state of the art process for manufacturing safety-relevant components. With regard to passenger safety and weight reduction, further potential lies in the functional optimization of the parts. Prior local carburization followed by hot-stamping is a new process variant for tailored properties, which overcomes the limitations of established processes. Due to the varying carbon content after carburization, the sheets have graded mechanical properties. Within this contribution, the influence of temperature, strain rate and carburization on the flow behavior will be investigated. For this purpose, tensile tests at elevated temperatures are carried out in a physical simulator of type Gleeble. The resulting flow curves of the carburized complex phase steel are modeled with a modified Norton-Hoff hardening law and the influence of the carburization process is analyzed by means of the initial yield stress. Furthermore, the results from tensile tests are correlated with the phase transformation behavior obtained by a laser ultrasonic sensor.
DOI：
10.1016/j.msea.2006.03.056
发表时间：
2006-06-15
影响因子：
6.4
作者：
Kruger, Silvio E.;Damm, Edward B.
通讯作者：
Damm, Edward B.
DOI：
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发表时间：
2007
期刊：
影响因子：
--
作者：
Till Laumann;M. Pfestorf;A. Beil;M. Geiger;M. Merklein
通讯作者：
M. Merklein
DOI：
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发表时间：
2017
期刊：
影响因子：
--
作者：
B. Rolfe;A. Abdollahpoor;Yanan Wang;M. Pereira;H. Kong;D. Fabijanic;K. Hu;R. Han;K. Gao;A. Liu;L. Pan;Y. Bi;Zijian Wang;Yisheng Zhang
通讯作者：
Yisheng Zhang