Verification of a microstructurally-based equation for elevated-temperature transient isotropic hardening

Conference · Mon Feb 01 04:00:00 EST 1982

OSTI ID:5323046

Kassner, M E; Rubin, K A; Miller, A K

A recent investigation quantified, by a root-mean-square equation, the separate effects of forest dislocations and subgrain boundaries on elevated (750/sup 0/C) temperature strength of type 304 stainless steel. This was accomplished by producing structures in which the subgrain size and forest dislocation density were not related by the usual one-to-one correspondence. Such structures were produced by combinations of warm and cold working. In the present investigation the equation is evaluated against data on transient structures produced exclusively at elevated temperatures (750 to 1065/sup 0/C). It is shown that the equation reliably predicts, over this elevated temperature range, the strength of structures in which the prominent microstructural features are subgrains and forest dislocations.

• Research Organization: Lawrence Livermore National Lab., CA (USA); Stanford Univ., CA (USA). Dept. of Materials Science and Engineering
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5323046
• Report Number(s): UCRL-87337; CONF-820808-1; ON: DE82008994
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
CREEP
CRYSTAL STRUCTURE
HARDENING
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL ALLOYS
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
STRESSES
TEMPERATURE GRADIENTS
THERMAL STRESSES