A parameter for characterizing thermal aging effect on fracture toughness of GTAW of 316L stainless steel

Gyo Geun Youn, Yun Jae Kim, Yasufumi Miura

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, the authors propose a model based on the thermal aging constant to predict the fracture toughness of aged gas-tungsten-arc-welded 316L stainless steel (referred to as GTAW hereinafter). The constant can be determined simply from the tensile data of aged GTAW, and a closed-form expression for this is given. The fracture toughness of aged GTAW can be predicted based on the product of the thermal aging constant with the toughness of unaged GTAW. The predicted toughness agrees well with the experimental data of aged GTAW.

Original languageEnglish
Article number107318
JournalEngineering Fracture Mechanics
Volume239
DOIs
Publication statusPublished - 2020 Nov

Keywords

  • Fracture toughness prediction
  • GTAW 316L stainless steel
  • Multi-axial fracture strain model
  • Thermal aging constant
  • Thermal aging effect

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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