Irradiation creep and creep rupture of titanium-modified austenitic stainless steels and their dependence on cold work level

Conference · Fri Nov 01 00:00:00 EST 1991

OSTI ID:10114728

Garner, F A; Hamilton, M L ^[1]; Eiholzer, C R ^[2]; Toloczko, M B ^[3]; Kumar, A S ^[4]

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1. Pacific Northwest Lab., Richland, WA (United States)
2. Westinghouse Hanford Co., Richland, WA (United States)
3. California Univ., Berkeley, CA (United States)
4. Missouri Univ., Rolla, MO (United States)

A titanium-modified austenitic type stainless steel was tested at three cold work levels to determine its creep and creep rupture properties under both thermal aging and neutron irradiation conditions. Both the thermal and irradiation creep behavior exhibit a complex non-monotonic relationship with cold work level that reflects the competition between a number of stress-sensitive and temperature-dependent microstructural processes. Increasing the degree of cold work to 30% from the conventional 20% level was detrimental to its performance, especially for applications above 550{degrees}c. The 20% cold work level is preferable to the 10% level, in terms of both in-reactor creep rupture response and initial strength.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 10114728
• Report Number(s): PNL-SA-19959; CONF-911111-26; ON: DE92006484
• Resource Relation: Conference: ICFRM-5: 5th. international conference on fusion reactor materials,Clearwater, FL (United States),17-22 Nov 1991; Other Information: PBD: Nov 1991
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
36 MATERIALS SCIENCE
AUSTENITIC STEELS
DAMAGING NEUTRON FLUENCE
THERMONUCLEAR REACTOR MATERIALS
PHYSICAL RADIATION EFFECTS
COLD WORKING
MICROSTRUCTURE
TEMPERATURE DEPENDENCE
CREEP
THERMAL STRESSES
RADIATION HARDENING
STRAINS
DEFORMATION
AGING
700480
360106
COMPONENT DEVELOPMENT
MATERIALS STUDIES
RADIATION EFFECTS