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首页> 外文期刊>Sodagem & inspecao >Microestrutura de uma Solda Dissimilar entre o A?§o Inoxid??vel Ferr?-tico AISI 410S e o A?§o Inoxid??vel Austen?-tico AISI 304L Soldado pelo Processo FSW
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Microestrutura de uma Solda Dissimilar entre o A?§o Inoxid??vel Ferr?-tico AISI 410S e o A?§o Inoxid??vel Austen?-tico AISI 304L Soldado pelo Processo FSW

机译：FSW工艺焊接的AISI 410S黑色金属不锈钢和AISI 304L奥氏体不锈钢之间的异种焊接组织

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摘要

This study aims to investigate the microstructure formed in dissimilar welding between AISI 410S ferritic stainless steel and AISI 304L austenitic stainless steels plates by friction stir welding process. The welding was performed setting the following parameters: rotation 450 rpm; welding speed of 1.0 mm/s; and axial force 40 kN. The AISI 410S was positioned on the advancing side while the AISI 304L steel was positioned in the retracting side. The analysis consisted of metallographic preparation and microstructural characterization by optical microscopy and scanning electron microscopy. For AISI 410S ferritic stainless steel was found martensite formation in association with ferrite in the stir zone (SZ), thermomechanically affected zone (TMAZ) and heat-affected zone (HAZ). The characteristics of the FSW welding process for the ferritic stainless steel resulted in grain refining, whether in the SZ, TMAZ and HAZ. In the austenitic stainless steel side, the same behavior was not found.
机译：这项研究的目的是通过搅拌摩擦焊接技术研究AISI 410S铁素体不锈钢和AISI 304L奥氏体不锈钢板在异种焊接中形成的显微​​组织。设定以下参数进行焊接：转速450 rpm;焊接速度为1.0 mm / s;和轴向力40 kN。 AISI 410S位于前进侧，而AISI 304L钢位于后退侧。该分析包括金相制备和通过光学显微镜和扫描电子显微镜的显微组织表征。对于AISI 410S，在搅拌区（SZ），热机械影响区（TMAZ）和热影响区（HAZ）中发现了与铁素体相关的马氏体形成。无论是在SZ，TMAZ和HAZ中，铁素体不锈钢的FSW焊接工艺的特点都可以细化晶粒。在奥氏体不锈钢侧，未发现相同的行为。

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