Precipitation behavior of stainless steel weld overlay cladding exposed to a long-term thermal aging

Xinyuan Cao, Ping Zhu, Wei Wang, Tingguang Liu, Yonghao Lu, Tetsuo Shoji

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Thermal aging behavior of stainless steel weld overlay cladding aged at 400 °C for 10,000 h was investigated. The results showed that the precipitates along the dislocation and within ferrite matrix contained the face-centered cubic structural G-phase and silicide phase. Silicide phase, supposed to be (Fe, Mn)3Si phase, preferred to form with G-phase along the dislocations and within ferrite matrix. Silicide phase showed a cube-on-cube relationship with ferrite phase and G-phase. Heterogeneous distribution of elements within Ni-Mn-Si clusters was responsible for silicide phase formation during thermal aging process, and the corresponding precipitation behavior discrepancy at different forming sites (dislocations, ferrite matrix and phase boundary) was discussed.

Original languageEnglish
Pages (from-to)77-83
Number of pages7
JournalMaterials Characterization
Volume137
DOIs
Publication statusPublished - 2018 Mar 1

Keywords

  • G-phase
  • Silicide phase
  • Thermal aging
  • Weld overlay cladding

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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