Kinetics of growth of M23C6 intergranular precipitates in 18Cr-12Ni-2.5Mo austenitic stainless steel

Authors
Zahumensky, P Sevc, P Janovec, J
Citation
P. Zahumensky et al., Kinetics of growth of M23C6 intergranular precipitates in 18Cr-12Ni-2.5Mo austenitic stainless steel, KOVOVE MAT, 37(2), 1999, pp. 108-119
Citations number
30
Categorie Soggetti
Material Science & Engineering
Journal title
KOVOVE MATERIALY-METALLIC MATERIALS
ISSN journal
0023432X → ACNP
Volume
37
Issue
2
Year of publication
1999
Pages
108 - 119
Database
ISI
SICI code
0023-432X(1999)37:2<108:KOGOMI>2.0.ZU;2-N
Abstract
In this work, the growth of secondary phase particles on austenite grain bo undaries in 18Cr-12Ni-2.5Mo steel exposed at 650, 700, 800, 900, and 950 de grees C is investigated. The particle sizes measured experimentally are com pared with those calculated using semiempirical Lifsic-Sljozov-Wagner equat ion. The positive correlation between intergranular particle sizes and expo sition temperature and time has been found. The experimentally measured and calculated values have exhibited good concordance, what confirms the suita bility of the Lifsic-Sljozov-Wagner equation for description of intergranul ar M23C6 particle growth in 18Cr-12Ni-2.5Mo steel.