Abstract
| Original language | English |
|---|---|
| Place of Publication | Espoo |
| Publisher | VTT Technical Research Centre of Finland |
| Number of pages | 25 |
| ISBN (Print) | 951-38-1315-0 |
| Publication status | Published - 1981 |
| MoE publication type | D4 Published development or research report or study |
Publication series
| Name | Tutkimuksia / Valtion teknillinen tutkimuskeskus |
|---|---|
| Publisher | VTT |
| Volume | 32 |
| ISSN (Print) | 0358-5077 |
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Keywords
- austenitic stainless steels
- grain boundaries
- segregation
- sensitizing
- hot cracking
- intergranular corrosion
Cite this
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Grain boundary segregation in austenitic stainless steels. / Hänninen, Hannu; Minni, Erkki.
Espoo : VTT Technical Research Centre of Finland, 1981. 25 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 32).Research output: Book/Report › Report › Professional
TY - BOOK
T1 - Grain boundary segregation in austenitic stainless steels
AU - Hänninen, Hannu
AU - Minni, Erkki
PY - 1981
Y1 - 1981
N2 - Impurity segregation in austenitic stainless steels has usually been studied by using surface heating experiments in Auger electron spectrometer. Although direct studies of grain boundary segregation would be preferable, there is a difficulty of achieving intergranular fracture in these ductile materials in the Auger electron spectrometer. After hydrogen charging of the specimens the grain boundaries of sensitized austenitic stainless steels can be broken up. The compositions of grain boundaries in two sensitized austenitic stainless steels (AISI 304 and AISI 321) are obtained. Also the depth distribution of segregated species will be given, depicting the layered segregation profiles of phosphorus and sulfur. An example of impurity segregation at the interdendritic fracture surface of a hot crack in an austenitic stainless steel weld is also presented. Segregations of S, Nb and P are observed.
AB - Impurity segregation in austenitic stainless steels has usually been studied by using surface heating experiments in Auger electron spectrometer. Although direct studies of grain boundary segregation would be preferable, there is a difficulty of achieving intergranular fracture in these ductile materials in the Auger electron spectrometer. After hydrogen charging of the specimens the grain boundaries of sensitized austenitic stainless steels can be broken up. The compositions of grain boundaries in two sensitized austenitic stainless steels (AISI 304 and AISI 321) are obtained. Also the depth distribution of segregated species will be given, depicting the layered segregation profiles of phosphorus and sulfur. An example of impurity segregation at the interdendritic fracture surface of a hot crack in an austenitic stainless steel weld is also presented. Segregations of S, Nb and P are observed.
KW - austenitic stainless steels
KW - grain boundaries
KW - segregation
KW - sensitizing
KW - hot cracking
KW - intergranular corrosion
M3 - Report
SN - 951-38-1315-0
T3 - Tutkimuksia / Valtion teknillinen tutkimuskeskus
BT - Grain boundary segregation in austenitic stainless steels
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -