Kinetics of fatigue-induced phase transformation in a metastable austenitic 304-L-type steel at low temperatures

Journal Article · Sun Aug 15 00:00:00 EDT 1993 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(93)90158-O· OSTI ID:6209831

Maier, H J; Donth, B ^[1]; Schneeweiss, O ^[2]

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1. Univ. Erlangen-Nuernberg, Erlangen (Germany). Inst. fuer Werkstoffwissenschaften
2. Czech Academy of Sciences, Brno (Czechoslovakia). Inst. of Physical Metallurgy

Austenitic stainless steels are widely used mainly because of their excellent corrosion resistance. For applications where high strength is required, metastable variants of these materials may be used as the strength of these metastable steels can be increased via the formation of martensite. The martensitic transformation can occur spontaneously by quenching the steel below the martensite start temperature (M[sub 3]). Above M[sub 3] the phase transformation can be assisted either by elastic stresses or plastic deformation. Cyclic deformation at low temperatures can strongly enhance the strength of metastable steel with acceptable decrease in ductility and toughness. Investigations based on fatigue tests have shown that the fatigue life depends strongly on the kinetics of the martensite formation. The temperature dependence of the kinetics of the martensitic transformation with and without superimposed external stresses below the yield point and during plastic deformation have been intensely investigated. In this paper, the kinetics of the martensitic transformation are investigated during low-temperature cyclic deformation.

• OSTI ID: 6209831
• Journal Information: Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 29:4; ISSN 0956-716X; ISSN SCRMEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
AUSTENITIC STEELS
CHROMIUM ALLOYS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CRYSTAL-PHASE TRANSFORMATIONS
DEFORMATION
DUCTILITY
FATIGUE
FRACTURE PROPERTIES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
KINETICS
LOW CA
MATERIALS
MECHANICAL PROPERTIES
NICKEL ALLOYS
PHASE TRANSFORMATIONS
QUENCHING
STAINLESS STEEL-304L
STAINLESS STEELS
STEEL-CR19NI10-L
STEELS
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES