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<p>The corrosion wear behavior of the selective laser melting (SLM) and forged TC4 alloys in 3.5&#xa0;wt.% NaCl solution is studied. Results indicate that the current densities of the two TC4 alloys increase with the increase in applied potential, meaning that the corrosion resistance of the alloys decreases. And the main product of the passive film is TiO<sub>2</sub>. What’s more, corrosion wear behavior is more severe due to the presence of corrosion, resulting in greater mass losses and deeper wear scars. To explore the interaction between corrosion and wear for the two TC4 alloys, the change of the mass loss proportions for wear caused by corrosion and corrosion caused by wear with potential is analyzed. The mass loss of wear caused by corrosion cannot be ignored, and it affects SLM TC4 alloy with the unique acicular α′-phase significantly.</p>

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Corrosion wear behavior of selective laser melting TC4 alloy in 3.5 wt.% NaCl solution

  • 期刊论文

  • 发表日期：

    2026年2月13日

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  • Shao-yu Feng,
  • Lan-lan Yang,
  • Jie Li,
  • Jin-long Wang,
  • Yan-bing Tang,
  • Fu-hui Wang

摘要

The corrosion wear behavior of the selective laser melting (SLM) and forged TC4 alloys in 3.5 wt.% NaCl solution is studied. Results indicate that the current densities of the two TC4 alloys increase with the increase in applied potential, meaning that the corrosion resistance of the alloys decreases. And the main product of the passive film is TiO2. What’s more, corrosion wear behavior is more severe due to the presence of corrosion, resulting in greater mass losses and deeper wear scars. To explore the interaction between corrosion and wear for the two TC4 alloys, the change of the mass loss proportions for wear caused by corrosion and corrosion caused by wear with potential is analyzed. The mass loss of wear caused by corrosion cannot be ignored, and it affects SLM TC4 alloy with the unique acicular α′-phase significantly.