焊接低碳钢热影响区的热循环模拟

I. Hamdi, Z. Boumerzoug, Oualid Bedjaoui, W. Melik, F. Delaunois
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引用次数: 0

摘要

这项工作的目的是利用热循环模拟研究低碳钢模拟热影响区的微观结构演变,并将其与实际焊接接头中的热影响区进行比较。表征技术包括光学显微镜、显微硬度测量和 X 射线衍射。还测定了模拟热影响区的微观结构和机械性能。热循环模拟技术详细揭示了焊接接头热影响区(HAZ)的不同微观结构。通过热循环模拟技术获得的热影响区与实际焊点中观察到的热影响区有一些相似之处。热循环模拟技术揭示了热影响区微观结构和机械行为的更多细节。热影响区的显微硬度值是焊点中最低的。此外,在 850°C 下模拟的热影响区硬度值最低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermal Cycle Simulation of Heat Affected Zone in the Welded Mild Steel
The aim of this work was to study the microstructure evolution of simulated heat affected zone in mild steel using thermal cycle simulation and it was compared to the heat affected zone in the real welded joint. The optical microscopy, micro-hardness measurements, X-ray diffraction were used as characterization techniques. The microstructures and mechanical properties of the simulated heat affected zone were also determined. The use of the thermal cycle simulation technique revealed in detail the different microstructures in the heat affected zone (HAZ) of the welded joint. Some similarities were observed between the heat affected zone obtained by the thermal cycle simulation technique and the heat affected zone observed in the real welded joint. The thermal cycle simulation technique revealed more details about the microstructure and mechanical behavior of the heat-affected zone. The HAZ microhardness values were lowest hardness in the welded joint. Moreover, the lowest hardness value is obtained for the HAZ simulated at 850°C.
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