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<p><b>Abstract</b>—The impact strength (KCV), dynamic crack resistance and fracture mechanisms of an (α + β) VT23 titanium alloy are investigated in quenched (at 800, 860°C) and aged (at 500, 550°C, 8 h) states. The relationship between the parameters of the descending region of the impact loading curve and the fracture toughness of the alloy is revealed. Quenching at 860°C is shown to provide the highest KCV value (276&#xa0;kJ/m<sup>2</sup>) and predominantly ductile fracture.</p>

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Influence of Heat-Treatment Conditions on the Impact Strength and Fracture Mechanisms of a VT23 Titanium Alloy

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • S. V. Gladkovskii,
  • V. E. Veselova,
  • V. A. Khotinov

摘要

Abstract—The impact strength (KCV), dynamic crack resistance and fracture mechanisms of an (α + β) VT23 titanium alloy are investigated in quenched (at 800, 860°C) and aged (at 500, 550°C, 8 h) states. The relationship between the parameters of the descending region of the impact loading curve and the fracture toughness of the alloy is revealed. Quenching at 860°C is shown to provide the highest KCV value (276 kJ/m2) and predominantly ductile fracture.