MICROSTRUCTURE-MECHANICAL PROPERTY RELATIONSHIPS IN MODIFIED 3 CHROME STEELS.

Judith Todd Copley, S. Yeltekin

Research output: Contribution to journalArticle

Abstract

The heavy section steels required to meet the elevated temperature and/or high pressure hydrogen service requirements for coal conversion vessels are currently being developed from alloy modifications of 2. 25Cr-1Mo pressure vessel steels (1,2). The alloy modifications are based on additions of austenite stabilizing elements (e. g. B, Mn, Ni) for improved hardenability and carbide stabilizing elements (e. g. Cr, Mo, V) for resistance to hydrogen attack and improved creep rupture strength. The results indicate that significant improvements in hydrogen attack resistance and creep rupture properties can be achieved in 3Cr-1Mo-1Ni and 3Cr-1. 5Mo steels by microstructural design based on Larson Miller Parameters.

Original languageEnglish (US)
Pages (from-to)65-70
Number of pages6
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume114
StatePublished - 1986

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Mechanical properties
Hydrogen
Microstructure
Steel
Creep
Steel structures
Austenite
Carbides
Coal
Temperature

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

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title = "MICROSTRUCTURE-MECHANICAL PROPERTY RELATIONSHIPS IN MODIFIED 3 CHROME STEELS.",
abstract = "The heavy section steels required to meet the elevated temperature and/or high pressure hydrogen service requirements for coal conversion vessels are currently being developed from alloy modifications of 2. 25Cr-1Mo pressure vessel steels (1,2). The alloy modifications are based on additions of austenite stabilizing elements (e. g. B, Mn, Ni) for improved hardenability and carbide stabilizing elements (e. g. Cr, Mo, V) for resistance to hydrogen attack and improved creep rupture strength. The results indicate that significant improvements in hydrogen attack resistance and creep rupture properties can be achieved in 3Cr-1Mo-1Ni and 3Cr-1. 5Mo steels by microstructural design based on Larson Miller Parameters.",
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AB - The heavy section steels required to meet the elevated temperature and/or high pressure hydrogen service requirements for coal conversion vessels are currently being developed from alloy modifications of 2. 25Cr-1Mo pressure vessel steels (1,2). The alloy modifications are based on additions of austenite stabilizing elements (e. g. B, Mn, Ni) for improved hardenability and carbide stabilizing elements (e. g. Cr, Mo, V) for resistance to hydrogen attack and improved creep rupture strength. The results indicate that significant improvements in hydrogen attack resistance and creep rupture properties can be achieved in 3Cr-1Mo-1Ni and 3Cr-1. 5Mo steels by microstructural design based on Larson Miller Parameters.

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