Metallographic studies of hydrogen-embrittled AISI Type 1018 steel

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:6724651

Wagner, J A; Louthan, III, M R; Louthan, Jr, M R

Metallographic and fractographic studies of AISI Type 1018 steel disks, pressurized to rupture in either hydrogen or oxygen gas showed that the adverse effects of hydrogen were influenced by the inclusion content of the steel. The hydrogen embrittlement processes initiate at surface defects and inclusion stringers. The embrittlement sequence then involves a complicated interaction between these failure initiation sites, the availability of hydrogen and the test strain rate. Final failure can occur by either microvoid coalescence or decohesion type mechanisms.

• Research Organization: Virginia Polytechnic Inst., Blacksburg (USA)
• DOE Contract Number: AS05-78ER06039
• OSTI ID: 6724651
• Report Number(s): DOE/ER/06039-2; CONF-820724-5; ON: DE83001525
• Resource Relation: Conference: 15. annual International Metallographic Society meeting, Orlando, FL, USA, 18 Jul 1982
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HYDROGEN EMBRITTLEMENT
STEELS
FAILURES
MICROSTRUCTURE
TEST FACILITIES
ALLOYS
CRYSTAL STRUCTURE
EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
360103* - Metals & Alloys- Mechanical Properties