Precipitate phases in type 316 austenitic stainless steel resulting from long-term high temperature service

J. K L Lai; D. J. Chastell; P. E J Flewitt

doi:10.1016/0025-5416(81)90129-4

Precipitate phases in type 316 austenitic stainless steel resulting from long-term high temperature service

J. K L Lai
, D. J. Chastell
, P. E J Flewitt

Research output: Journal Publications and Reviews › RGC 22 - Publication in policy or professional journal

38 Citations (Scopus)

Abstract

The precipitate phases in a type 316 steel superheater tube which failed by creep were studied by using a newly developed X-ray internal standard technique and scanning transmission electron microscopy. The precipitate phases identified were σ, M₂₃C₆ and η; the η phase was the predominant precipitate in the sample. The major effect of the formation of large amounts of η phase is the removal of molybdenum from solid solution, causing a decline in long-term creep strength. By comparing the precipitate phases of the failed tube with laboratory-tested specimens it was possible to estimate the mean exposure temperature of the failed tube. This was found to be approximately 923 K (650 °C) and was about 80 K above the design temperature. © 1981.

Original language	English
Pages (from-to)	19-29
Journal	Materials Science and Engineering
Volume	49
Issue number	1
DOIs	https://doi.org/10.1016/0025-5416(81)90129-4
Publication status	Published - Jun 1981
Externally published	Yes

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title = "Precipitate phases in type 316 austenitic stainless steel resulting from long-term high temperature service",

abstract = "The precipitate phases in a type 316 steel superheater tube which failed by creep were studied by using a newly developed X-ray internal standard technique and scanning transmission electron microscopy. The precipitate phases identified were σ, M23C6 and η; the η phase was the predominant precipitate in the sample. The major effect of the formation of large amounts of η phase is the removal of molybdenum from solid solution, causing a decline in long-term creep strength. By comparing the precipitate phases of the failed tube with laboratory-tested specimens it was possible to estimate the mean exposure temperature of the failed tube. This was found to be approximately 923 K (650 °C) and was about 80 K above the design temperature. {\textcopyright} 1981.",

author = "Lai, \{J. K L\} and Chastell, \{D. J.\} and Flewitt, \{P. E J\}",

year = "1981",

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doi = "10.1016/0025-5416(81)90129-4",

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T1 - Precipitate phases in type 316 austenitic stainless steel resulting from long-term high temperature service

AU - Lai, J. K L

AU - Chastell, D. J.

AU - Flewitt, P. E J

PY - 1981/6

Y1 - 1981/6

N2 - The precipitate phases in a type 316 steel superheater tube which failed by creep were studied by using a newly developed X-ray internal standard technique and scanning transmission electron microscopy. The precipitate phases identified were σ, M23C6 and η; the η phase was the predominant precipitate in the sample. The major effect of the formation of large amounts of η phase is the removal of molybdenum from solid solution, causing a decline in long-term creep strength. By comparing the precipitate phases of the failed tube with laboratory-tested specimens it was possible to estimate the mean exposure temperature of the failed tube. This was found to be approximately 923 K (650 °C) and was about 80 K above the design temperature. © 1981.

AB - The precipitate phases in a type 316 steel superheater tube which failed by creep were studied by using a newly developed X-ray internal standard technique and scanning transmission electron microscopy. The precipitate phases identified were σ, M23C6 and η; the η phase was the predominant precipitate in the sample. The major effect of the formation of large amounts of η phase is the removal of molybdenum from solid solution, causing a decline in long-term creep strength. By comparing the precipitate phases of the failed tube with laboratory-tested specimens it was possible to estimate the mean exposure temperature of the failed tube. This was found to be approximately 923 K (650 °C) and was about 80 K above the design temperature. © 1981.

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0019573244&origin=recordpage

U2 - 10.1016/0025-5416(81)90129-4

DO - 10.1016/0025-5416(81)90129-4

M3 - RGC 22 - Publication in policy or professional journal

SN - 0025-5416

VL - 49

SP - 19

EP - 29

JO - Materials Science and Engineering

JF - Materials Science and Engineering

IS - 1

ER -

Precipitate phases in type 316 austenitic stainless steel resulting from long-term high temperature service

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