Microstructural origin of the skeletal ferrite morphology of austenitic stainless steel welds

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02664809· OSTI ID:6794796

Brooks, J A; Thompson, A W; Williams, J C

Scanning transmission electron microscopy was conducted on welds exhibiting a variety of skeletal or vermicular ferrite morphologies in addition to one lathy ferrite morphology. During cooling, a large fraction of the ferrite transforms to austenite leaving a variety of ferrite morphologies. Comparison of composition profiles and partitioning showed ferrite structures result from a diffusion controlled solid state transformation. However, the overall measured composition profiles are a result of partitioning during both solidification and subsequent transformation.

• Research Organization: Carnegie-Mellon Univ., Pittsburgh, PA
• OSTI ID: 6794796
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 14A:7; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
AUSTENITE
AUSTENITIC STEELS
CARBON ADDITIONS
CHROMIUM ALLOYS
COOLING
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
DIFFUSION
ELECTRON MICROSCOPY
FERRITE
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MICROSCOPY
MICROSTRUCTURE
MORPHOLOGY
PHASE TRANSFORMATIONS
SCANNING ELECTRON MICROSCOPY
SOLIDIFICATION
STAINLESS STEELS
STEELS
TRANSMISSION ELECTRON MICROSCOPY
WELDED JOINTS