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Microstructural and mechanical evaluation of submerged arc welded HSLA 4135 steel by modeled and manufactured granular Cr-Mo bonded active basic flux
Journal of Materials Processing Technology ( IF 6.3 ) Pub Date : 2021-04-01 , DOI: 10.1016/j.jmatprotec.2020.116890
Mahdi Alishavandi , Mahdi Mohammadmirzaei , Mahnam Ebadi , Amir Hossein Kokabi

Abstract Bead-on-plate submerged arc welding was performed on the AISI 4135 heat-treatable low-alloy (HTLA) steel using S2 welding wire and granular Cr-Mo basic flux. The Cr-Mo active flux was produced by the bonded -unfused method. The alloying elements were introduced into the weld metal by active flux. Two methods were introduced for calculating the recovery rate (η) of the alloying elements. Moreover, by defining the slag factor (α) of the process and η of the alloying elements, the amount of a specific element transferred from flux into WM was calculated by the proposed equation. Likewise, microstructure evolutions, inclusions characteristics, longitudinal tensile, indentation, and CVN impact tests were performed and thoroughly investigated; fracture mechanisms of all WMs were also identified.

中文翻译:

用模拟和制造的粒状 Cr-Mo 结合活性碱性焊剂对埋弧焊 HSLA 4135 钢进行显微组织和力学评估

摘要 使用S2焊丝和粒状Cr-Mo碱性焊剂对AISI 4135可热处理低合金(HTLA)钢进行了板珠埋弧焊。Cr-Mo活性助焊剂采用键合未熔法生产。通过活性焊剂将合金元素引入焊缝金属中。介绍了两种计算合金元素回收率 (η) 的方法。此外,通过定义过程的熔渣因子 (α) 和合金元素的 η,通过建议的方程计算从熔剂转移到 WM 的特定元素的量。同样,对微观结构演变、夹杂物特征、纵向拉伸、压痕和 CVN 冲击试验进行了深入研究;还确定了所有 WM 的断裂机制。
更新日期:2021-04-01
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