Aging constants for efficient fracture toughness prediction of thermally aged GTAW/SMAW of 316L stainless steel

Young Joon Kim, Gyo Geun Youn, Jin Ha Hwang, Yun Jae Kim, Yasufumi Miura

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This paper presents closed-form expressions of the thermal aging constant to predict fracture toughness of thermally aged SMAW and GTAW 316 L stainless steels. Based on the data thermally aged at 350 °C up to 15,000 h and at 400 °C up to 8,000 h; and tested at room and operating temperatures (288 °C), closed-form approximations are given in terms of the aging time and temperature using an exponential function. Comparison of the predicted toughness with experimental data shows that the thermal aging time and temperature effects on toughness reduction can be predicted, although there exists quite scattering in experimental toughness data of weldment.

Original languageEnglish
Article number104632
JournalInternational Journal of Pressure Vessels and Piping
Volume197
DOIs
Publication statusPublished - 2022 Jun

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

  • Fracture toughness prediction
  • GTAW and SMAW 316L stainless Steel welds
  • Thermal aging constant
  • Thermal embrittlement

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Aging constants for efficient fracture toughness prediction of thermally aged GTAW/SMAW of 316L stainless steel'. Together they form a unique fingerprint.

Cite this