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首页> 外文期刊>International Journal of Electrochemical Science >Investigation of Influence of Microstructure on FH32 Steel Corrosion Properties using Gleeble Simulation of Heat-Affected Zone and Electrochemical Methods
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Investigation of Influence of Microstructure on FH32 Steel Corrosion Properties using Gleeble Simulation of Heat-Affected Zone and Electrochemical Methods

机译：用热影响区和电化学方法模拟对FH32钢腐蚀组织的影响

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The corrosion behavior was investigated for each heat-affected zone (HAZ) comprising a FH32 steelimmersed in 3.5% NaCl solutions. To research the corrosion behavior of each HAZ sub-region, HAZthermo-mechanical simulations were performed prior to the electrochemical tests. The results revealedthat the corrosion resistance of the fine-grained HAZ (FGHAZ) comprising the steel is superior to thatof other HAZ sub-regions. Moreover, the coarse-grained HAZ (CGHAZ) exhibited the worst corrosionresistance of the weld joint. The changes in the corrosion resistance of the HAZ sub-regions wereattributed to variations in the microstructural sensitivity to corrosion behavior. Furthermore, the resultsindicated that the number, size, and distribution of martensite/austenite (M/A) constituents, as well asthe grain size of the relevant phase can affect the resistance.
机译：对于每个浸入3.5％NaCl溶液中的FH32的热影响区（HAZ），研究其腐蚀行为。为了研究每个HAZ子区域的腐蚀行为，在进行电化学测试之前先进行了HAZ热力学模拟。结果表明，包含钢的细粒热影响区（FGHAZ）的耐腐蚀性优于其他热影响区子区域。此外，粗晶粒HAZ（CGHAZ）表现出最差的焊接接头耐腐蚀性。 HAZ子区域的耐腐蚀性的变化归因于微观结构对腐蚀行为的敏感性变化。此外，结果表明马氏体/奥氏体（M / A）成分的数量，大小和分布以及相关相的晶粒尺寸会影响电阻。

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