Theory of designing the gradient microstructured metals for overcoming strength-ductility trade-off

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

15 Scopus Citations
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Author(s)

  • Jitang Fan
  • Linli Zhu
  • Jian Lu
  • Tao Fu
  • Aiying Chen

Detail(s)

Original languageEnglish
Pages (from-to)41-45
Journal / PublicationScripta Materialia
Volume184
Online published15 Apr 2020
Publication statusPublished - 15 Jul 2020

Abstract

Gradient microstructure design has been found to be an effective approach to significantly produce the utmost advanced structural metallic materials, which have a signature in mechanical characteristic of strength-ductility-hardenability combination. In this work, a physical theory and mechanism-based numerical model are developed for sophisticatedly designing the gradient microstructured metals. It considers the gradient distribution of grain size, twin, martensite and austenite in a metallic alloy. The numerical results are validated through experiments. The mechanical performance of high strength, large ductility and considerable hardenability is achieved and their trade-off is successfully overcome.

Research Area(s)

  • Ductility, Metal, Microstructure, Model, Strength