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首页> 外文期刊>Journal of thermal analysis and calorimetry >Alloying the surface of AISI 2205 duplex stainless steel material by PTA welding method and making its thermomechanical investigation in ANSYS software
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Alloying the surface of AISI 2205 duplex stainless steel material by PTA welding method and making its thermomechanical investigation in ANSYS software

机译：通过PTA焊接方法合金化AISI 2205双相不锈钢材料的表面，并在ANSYS软件中进行热机械调查

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AISI 2205 steel is a duplex stainless steel plate containing 22% Cr, 3% Mo and 5-6% Ni and having the properties like high strength, impact toughness and corrosion resistance. In plasma transfer arc (PTA) welding method, the arc occurs between the tungsten electrode and the workpiece. In this study, the surface of AISI 2205 steel material was alloyed by PTA welding method using different combinations of TiC and B4C powders. The effect of B4C and TiC powders on AISI 2205 steel in coating process performed by PTA welding was investigated. The coating layer was investigated with the help of microhardness, optic microscope, SEM and XRD. As a result of optical microscope, microstructure examinations and microhardness values, it was determined that the coating layer and substrate were bonded to each other metallurgically, there was a significant increase in the hardness values in the presence of B4C and also metal carbide (MC) and metal boride (Me-B) phases formed in the structure. The highest increase in hardness was observed in the sample N4. TiC mixture decreased when B4C rate was 75% increased and the hardness values in the coating region by 330-457 HV. Finally, in the thermomechanical analysis results we found that axes-dependent thermal and residual stresses of the alloying layer increased along the welding. It is clear that the stress distribution along the weld line was the same. At both ends of the weld, there was only a small reduction in the stress size. It was determined that the highest stress concentration existed in the highest cross-sectional area.
机译：AISI 2205钢是一种双工不锈钢板，其含有22％Cr，3％Mo和5-6％Ni，并且具有高强度，冲击韧性和耐腐蚀性等性质。在等离子体转移弧（PTA）焊接方法中，电弧发生在钨电极和工件之间。在该研究中，使用不同组合的TIC和B4C粉末，AISI 2205钢材的表面通过PTA焊接方法合金化。研究了B4C和TIC粉末对通过PTA焊接进行的涂布过程中AISI 2205钢的影响。借助于微硬度，光学显微镜，SEM和XRD研究涂层。由于光学显微镜，微观结构检查和显微硬度值，确定涂层和基材彼此键合冶金，B4C存在的硬度值显着增加，以及金属碳化物（MC）和金属硼化物（ME-B）在结构中形成的相。在样品N4中观察到硬度的最高增加。当B4C速率为75％的增加时，TiC混合物增加，涂层区域的硬度值升高330-457HV。最后，在热机械分析结果中，我们发现合金层的轴依赖性热和残余应力沿着焊接增加。很明显，沿焊接线的应力分布是相同的。在焊缝的两端，应力尺寸的降低只有很小。确定最高的横截面积存在的最高应力浓度。

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