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<p>Armor steels are widely used in both civilian and military applications, and they play an important role in protecting infrastructure due to their capacity for defense against a variety of threats. Welding is a typical method of joining armor steel plates in structures. The welding process affects the mechanical properties and performance of steel. This study aims to research the corrosion and wear behavior of welded armor steels, considering both the pre- and post-fatigue conditions. The effect of weld penetration rate, which varies with welding parameters, on the fatigue, wear, hardness, and corrosion properties of steel is investigated. To determine how fatigue affected corrosion and mechanical properties the specimens were tested before and after the fatigue test. Hardness values ranging from 200 to 500 HV were recorded along distinct hardness lines. Following the fatigue test, corrosion rates increased by 11%, 59%, and 49% for three separate penetration rates, with a maximum of 0.296&#xa0;mm/year. While all samples showed an increase in specific wear rates following the fatigue test, the lowest result was 1.07 × 10<sup>−4</sup>&#xa0;mm<sup>3</sup>N<sup>−1</sup>&#xa0;m<sup>−1</sup> and the highest was 1.84 × 10<sup>−4</sup>&#xa0;mm<sup>3</sup>N<sup>−1</sup>&#xa0;m<sup>−1</sup>.</p>

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Influence of Penetration Rate on Corrosion and Mechanical Characteristics of Welded Armor Steel

  • 期刊论文

  • 发表日期：

    2026年2月19日

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  • Umut Yaşar Uzunali,
  • Hamdullah Çuvalcı,
  • Özlem Canpolat

摘要

Armor steels are widely used in both civilian and military applications, and they play an important role in protecting infrastructure due to their capacity for defense against a variety of threats. Welding is a typical method of joining armor steel plates in structures. The welding process affects the mechanical properties and performance of steel. This study aims to research the corrosion and wear behavior of welded armor steels, considering both the pre- and post-fatigue conditions. The effect of weld penetration rate, which varies with welding parameters, on the fatigue, wear, hardness, and corrosion properties of steel is investigated. To determine how fatigue affected corrosion and mechanical properties the specimens were tested before and after the fatigue test. Hardness values ranging from 200 to 500 HV were recorded along distinct hardness lines. Following the fatigue test, corrosion rates increased by 11%, 59%, and 49% for three separate penetration rates, with a maximum of 0.296 mm/year. While all samples showed an increase in specific wear rates following the fatigue test, the lowest result was 1.07 × 10−4 mm3N−1 m−1 and the highest was 1.84 × 10−4 mm3N−1 m−1.