Hydrogen-induced brittle fracture of Type 304L austenitic stainless steel

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States)

OSTI ID:6340196

Gilbertson, L N; Zipp, R D ^[1]

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1. eds.

Type 304L stainless steel supersaturated with hydrogen gas fails in tension at 200 to 250/sup 0/K by brittle fracture. Fracture surfaces exhibit isolated facets oriented 0 to 30/sup 0/ to the tensile axis. These facets have many of the characteristics of cleavage fracture. The threefold symmetry of Laue back-reflection photographs and trace analysis of deformation bands on the facets demonstrate that fracture is along (111) planes. The fracture paths were identified as coherent twin boundaries on polished sections through facets and on microcracks across interior grains. Although twin-boundary parting is not commonly observed in alloys with a face-centered cubic (FCC) lattice, these observations for Type 304L stainless steel and similar observations of Nitronic-40 and Tenelon demonstrate that parting is possible in austenitic steels under some circumstances. 8 figures, 1 table.

• Research Organization: E. I. duPont de Nemours and Co., Aiken, SC
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6340196
• Journal Information: Am. Soc. Test. Mater., Spec. Tech. Publ.; (United States), Vol. 733
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
STAINLESS STEEL-304L
FRACTURES
HYDROGEN EMBRITTLEMENT
EXPERIMENTAL DATA
LOW TEMPERATURE
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COHERENT SCATTERING
CORROSION RESISTANT ALLOYS
DATA
DIFFRACTION
EMBRITTLEMENT
FAILURES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
NICKEL ALLOYS
NUMERICAL DATA
SCATTERING
STAINLESS STEELS
STEELS
360103* - Metals & Alloys- Mechanical Properties
360102 - Metals & Alloys- Structure & Phase Studies