Scholarlink

<p>In this study, the development of ultrafine-grained and gradient microstructures in cold-rolled AISI 1010 steel processed via surface thermomechanical processing (STMP) is investigated with emphasis on the influence of tool rotational speed. The results demonstrate that STMP is capable of generating a pronounced surface grain refinement driven primarily by dynamic recrystallization, whereas the subsurface retains a gradient structure governed by static recrystallization. This gradient microstructural architecture leads to a systematic transition in hardness and mechanical response from the surface to the bulk. Moreover, increasing rotational speed alters the balance between refinement and recovery mechanisms, resulting in reduced strength but improved ductility and toughness. Overall, the study highlights the potential of STMP as an effective approach for tailoring surface-dominated gradient structures and optimizing the strength–ductility synergy in low-carbon steels.</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

Harnessing Surface Thermomechanical Processing and Cold Rolling to Engineer Gradient Microstructures in AISI 1010 Steel

  • 期刊论文

  • 发表日期：

    2026年2月23日

查看全文
  • Daryoush Mohammad-Nejad,
  • Hamed Jamshidi Aval,
  • Roohollah Jamaati

摘要

In this study, the development of ultrafine-grained and gradient microstructures in cold-rolled AISI 1010 steel processed via surface thermomechanical processing (STMP) is investigated with emphasis on the influence of tool rotational speed. The results demonstrate that STMP is capable of generating a pronounced surface grain refinement driven primarily by dynamic recrystallization, whereas the subsurface retains a gradient structure governed by static recrystallization. This gradient microstructural architecture leads to a systematic transition in hardness and mechanical response from the surface to the bulk. Moreover, increasing rotational speed alters the balance between refinement and recovery mechanisms, resulting in reduced strength but improved ductility and toughness. Overall, the study highlights the potential of STMP as an effective approach for tailoring surface-dominated gradient structures and optimizing the strength–ductility synergy in low-carbon steels.