A Comparative Analysis on Corrosion Behavior on Precipitation Hardened Stainless Steel Weldments for Car Parts

Q3 Engineering

SAE Technical Papers Pub Date : 2023-11-10 DOI:10.4271/2023-28-0149

Palanisamy D, Gnanarathinam A, Thejasree Pasupuleti, Manikandan Natarajan, Jothi Kiruthika, Vamsinath Polanki

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Abstract

Precipitation Hardened Stainless Steel (PHSS) is one of the martensitic steels that possess exceptional strength and corrosion resistance. Because of its characteristics, this PHSS is exclusively adopted in numerous engineering uses such as nuclear, chemical and marine industries. Welding is one of the important methods of joining that helps to make weldments with better performance characteristics. Corrosion behaviour is one of the important characteristics that contribute hugely to marine and other corrosion-related environments and also this is the most common problem for most of the manufacturing industries. The goal of this study was to analyze the PHSS weldments’ corrosive behavior and compare it with that of the two commonly used welding processes, namely MIG and TIG. The corrosive properties of the weldments were evaluated using various mediums, such as nitric acid, ferric chloride, and Oxalic acid. The weight loss procedure was utilized to calculate the PHSS weldments’ corrosion rate. The results of the study revealed that the corrosion rate has increased with time. Temperature variations were identified as the primary cause of this phenomenon.

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沉淀硬化不锈钢汽车零部件焊接件腐蚀性能对比分析

><div class="section摘要"><div class="htmlview段落">沉淀硬化不锈钢(PHSS)是一种马氏体钢，具有优异的强度和耐腐蚀性。由于其特性，这种PHSS专门用于许多工程用途，如核，化学和海洋工业。焊接是一种重要的连接方法，它有助于使焊接件具有更好的性能特征。腐蚀行为是影响海洋和其他腐蚀相关环境的重要特征之一，也是大多数制造业最常见的问题。本研究的目的是分析PHSS焊接件的腐蚀行为，并将其与两种常用的焊接工艺MIG和TIG进行比较。用硝酸、氯化铁和草酸等不同介质对焊接件的腐蚀性能进行了评价。采用失重法计算了PHSS焊件的腐蚀速率。研究结果表明，腐蚀速率随时间的增加而增加。温度变化被认为是造成这一现象的主要原因。

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来源期刊

SAE Technical Papers Engineering-Industrial and Manufacturing Engineering

CiteScore

1.00

自引率

0.00%

发文量

1487

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