Influence of alloy composition on the cryogenic mechanical properties of AISI 200 grade high-manganese austenitic steels

Conference · Sat May 01 00:00:00 EDT 1982

OSTI ID:5710321

Ogawa, R; Morris, Jr, J W

Research on the effect of composition on the cryogenic mechanical properties of high-Mn austenitic steels showed that both the yield strength and change of strength with alloy processing increased significantly with increasing interstitial content. Alloy toughness deteriorated if carbon content was raised to 0.1% or higher or if delta-ferrite was retained in the as-cooled alloy. On the basis of these investigations an alloy of nominal composition 18Mn-5Ni-16Cr-0.024C-0.22 N was made and tested at 4K. Both its strength-toughness characteristic and fatigue crack growth properties compared favorably to those of 304LN and 304N cryogenic steels.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5710321
• Report Number(s): LBL-14178; CONF-820546-17; ON: DE83017518
• Resource Relation: Conference: 9. international cryogenic engineering conference, Kobe, Japan, 10 May 1982
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITIC STEELS
MECHANICAL PROPERTIES
MANGANESE STEELS
CHEMICAL COMPOSITION
FATIGUE
FRACTURE PROPERTIES
INTERSTITIALS
QUANTITY RATIO
ULTRALOW TEMPERATURE
ALLOYS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
POINT DEFECTS
STEELS
360103* - Metals & Alloys- Mechanical Properties