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Abstract <p>Samples of structural aviation steel VNS-5 were implanted with carbon ions using ion-beam implantation. The modified layer was about 200 nm; the carbon content did not exceed 10% in this layer. This study shows that the VNS-5 specimens implanted with carbon ions exhibit high low-cycle fatigue properties. The origin and behavior of fatigue cracks in implanted samples differs from non-implanted material and does not depend on the magnitude of the load at low-cycle fatigue. The high surface residual compressive stress in the implanted material helps to suppress the nucleation and spread of surface cracks, thereby improving the fatigue resistance of steel.</p>

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Effect of Modification of the Surface of VNS-5 Steel Samples by Ion-Plasma Methods on the Fracture Pattern during Fatigue Tests

  • 期刊论文

  • 发表日期：

    2025年12月8日

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  • T. I. Dorofeeva,
  • M. V. Fedorischeva,
  • V. P. Sergeev

摘要

Abstract

Samples of structural aviation steel VNS-5 were implanted with carbon ions using ion-beam implantation. The modified layer was about 200 nm; the carbon content did not exceed 10% in this layer. This study shows that the VNS-5 specimens implanted with carbon ions exhibit high low-cycle fatigue properties. The origin and behavior of fatigue cracks in implanted samples differs from non-implanted material and does not depend on the magnitude of the load at low-cycle fatigue. The high surface residual compressive stress in the implanted material helps to suppress the nucleation and spread of surface cracks, thereby improving the fatigue resistance of steel.