The effect of cold work on the precipitation kinetics of an advanced austenitic steel

Judith Todd Copley, Jyh Ching Ren

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The precipitation kinetics of an advanced austenitic steel, modified with stabilizing additions of titanium, niobium and vanadium, has been studied in both the solution-annealed and the solution-annealed plus cold-worked conditions, for times up to 3000 h at 800°C. Matrix phosphide precipitates and a very few MC precipitates evolved in the solution-annealed material. In contrast, stable MC matrix precipitate distributions were observed after only one hour at 800°C and persisted for 3000 h in the samples which were solution annealed and cold worked. Observations using transmission electron microscopy provide an explanation for the significant improvements in creep rupture strength observed in the advanced alloy compared with 316 stainless steel.

Original languageEnglish (US)
Pages (from-to)235-245
Number of pages11
JournalMaterials Science and Engineering A
Volume117
Issue numberC
DOIs
StatePublished - Jan 1 1989

Fingerprint

Austenitic steel
steels
Precipitates
precipitates
Kinetics
kinetics
creep rupture strength
Niobium
Vanadium
phosphides
Stainless Steel
matrices
Titanium
niobium
vanadium
stainless steels
Creep
Stainless steel
titanium
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "The precipitation kinetics of an advanced austenitic steel, modified with stabilizing additions of titanium, niobium and vanadium, has been studied in both the solution-annealed and the solution-annealed plus cold-worked conditions, for times up to 3000 h at 800°C. Matrix phosphide precipitates and a very few MC precipitates evolved in the solution-annealed material. In contrast, stable MC matrix precipitate distributions were observed after only one hour at 800°C and persisted for 3000 h in the samples which were solution annealed and cold worked. Observations using transmission electron microscopy provide an explanation for the significant improvements in creep rupture strength observed in the advanced alloy compared with 316 stainless steel.",
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The effect of cold work on the precipitation kinetics of an advanced austenitic steel. / Todd Copley, Judith; Ren, Jyh Ching.

In: Materials Science and Engineering A, Vol. 117, No. C, 01.01.1989, p. 235-245.

Research output: Contribution to journalArticle

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