Experimental and analytical investigations of mass transport processes of 12Cr-1MoVW steel in thermally-convected lithium systems

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5181410

Bell, G E; Abdou, M A; Tortorelli, P F

Experimental data on corrosion and mass transport in lithium12Cr-1MoVW steel were obtained from two thermal convection loops; one operated from 360 to 505/sup 0/C for 3040 hours and the other from 525 to 655/sup 0/C for 2510 hours. The experimental effort was supported by analytical investigations of mechanisms of corrosion and mass transport. It was found that mass transfer is not a simple function of temperature and alloy component solubility, but that temperature gradient also plays an important role. Above 580/sup 0/C mass transfer appears dominated by temperature gradient. Between 450 and 580/sup 0/C, mass transfer appears related to surface reactions involving nitrogen in lithium with chromium, and carbides on the steel surface. The corrosion rates from this work are significantly lower than those adopted in recent blanket design studies. 16 refs., 5 figs

• Research Organization: California Univ., Los Angeles (USA). Dept. of Mechanical, Aerospace and Nuclear Engineering; Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5181410
• Report Number(s): CONF-880417-3; ON: DE88007139
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201 -- Fusion Power Plant Technology-- Blanket Engineering
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALKALI METALS
ALLOYS
BREEDING BLANKETS
CHEMICAL REACTIONS
CORROSION
ELECTRON MICROSCOPY
ELEMENTS
FERRITIC STEELS
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM
MASS TRANSFER
MATERIALS
MATERIALS TESTING
METALS
MICROSCOPY
REACTOR COMPONENTS
SCANNING ELECTRON MICROSCOPY
STEELS
TEMPERATURE DEPENDENCE
TEMPERATURE GRADIENTS
TESTING
THERMONUCLEAR REACTOR MATERIALS