APPLICATION OF THE HYDROGEN MICROPRINT AND THE MICROAUTORADIOGRAPHY TECHNIQUES TO A DUPLEX STAINLESS-STEEL

Authors
YALCI HK EDMONDS DV
Citation
Hk. Yalci et Dv. Edmonds, APPLICATION OF THE HYDROGEN MICROPRINT AND THE MICROAUTORADIOGRAPHY TECHNIQUES TO A DUPLEX STAINLESS-STEEL, Materials characterization, 34(2), 1995, pp. 97-104
Citations number
24
Categorie Soggetti
Materials Science, Characterization & Testing
Journal title
Materials characterization → ACNP
ISSN journal
10445803
Volume
34
Issue
2
Year of publication
1995
Pages
97 - 104
Database
ISI
SICI code
1044-5803(1995)34:2<97:AOTHMA>2.0.ZU;2-Q
Abstract
Hydrogen microprint (HMT) and microautoradiography (HMAT) techniques h ave been used to study the hydrogen distribution in the microstructure of a duplex stainless steel having a 50/50 austenite/ferrite phase ra tio. Both techniques indicated that the austenite/ferrite interphase b oundaries and the austenite phase could act as effective hydrogen trap s in steel microstructure. The HMT and HMAT results confirm the ideas that the grain boundary diffusivity of hydrogen is concentration-depen dent and that the grain boundaries are not high-diffusivity paths for hydrogen.