PlumX Metrics
Embed PlumX Metrics

Tensile and Microstructural Characteristics of Fe-24Mn Steel Welds for Cryogenic Applications

Metals and Materials International, ISSN: 2005-4149, Vol: 26, Issue: 2, Page: 240-247
2020
  • 40
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 2
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    40
    • Citation Indexes
      40
  • Captures
    17
  • Social Media
    2
    • Shares, Likes & Comments
      2
      • Facebook
        2

Article Description

Abstract: Herein, we investigated the weldability and relationship between microstructure and tensile properties in 24 wt% Mn steel welds and, specifically, submerged arc welds (SAWs) were produced using these welds for cryogenic applications. The base metal (BM) and weld metal (WM) exhibited a stacking fault energy (SFE) that maintained a stable austenite phase for 27.1 and 17.0 mJ/m, respectively. Deformation twins were observed after tensile testing of the BM and WM at 298 K. Weld metals using undermatched fillers showed a lower SFE and coarser grain size (~ 86 μm) compared to that of the BM (~ 12 μm). Therefore, the tensile testing at 110 K produced deformation twins and ε-martensite. The formation of ε-martensite with deformation twins antedated necking during tensile testing and elongation decreased at 110 K. However, the SAWs of high Mn steels maintained excellent low-temperature mechanical properties such as elongation, tensile strength, and yield strength with values of 20%, 1150 MPa, and 617 MPa, respectively. Graphic Abstract: [Figure not available: see fulltext.].

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know