Scholarlink

<p>The effect of the strain rate in a wide temperature range on hot ductility of a high carbon steel was investigated. The hot ductility behavior of this material has been studied by hot tension tests in the temperature range from 1150 to 600&#xa0;°C at strain rates of 0.001 and 0.1&#xa0;s<sup>−1</sup>. The hot ductility based on Reduction in Area percentage (%RA) of tensile strained specimens was high for temperatures ≥ 750&#xa0;°C. When ductility starts to decrease at lower temperatures from Ae<sub>3</sub> (715&#xa0;°C), no embrittlement mechanism appears and a high ductility remains, in spite of a high cooling rate, low strain rate, coarse grain size and the apparent null effect of dynamic recrystallization. Due to the phase transformation of austenite to pearlite at the minimum ductility value, the increase in strain rate improves ductility only about a 10%RA, preventing the failure by microvoids coalescence around MnS inclusions in the&#xa0;deformation-induced ferrite film.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of strain rate and temperature parameters on the hot ductility behavior of a high carbon steel

  • 期刊论文

  • 发表日期：

    2025年11月26日

查看全文
  • César A. Facusseh-Valerio,
  • Armando Salinas-Rodríguez,
  • Alfredo Flores-Valdés,
  • Gerardo Altamirano-Guerrero,
  • Luis A. Guía-Hernández

摘要

The effect of the strain rate in a wide temperature range on hot ductility of a high carbon steel was investigated. The hot ductility behavior of this material has been studied by hot tension tests in the temperature range from 1150 to 600 °C at strain rates of 0.001 and 0.1 s−1. The hot ductility based on Reduction in Area percentage (%RA) of tensile strained specimens was high for temperatures ≥ 750 °C. When ductility starts to decrease at lower temperatures from Ae3 (715 °C), no embrittlement mechanism appears and a high ductility remains, in spite of a high cooling rate, low strain rate, coarse grain size and the apparent null effect of dynamic recrystallization. Due to the phase transformation of austenite to pearlite at the minimum ductility value, the increase in strain rate improves ductility only about a 10%RA, preventing the failure by microvoids coalescence around MnS inclusions in the deformation-induced ferrite film.

Graphical abstract