Heat treatment behavior and tensile properties of Cr-W steels
- Oak Ridge National Lab., TN (USA). Metals and Ceramics Div.
The author discusses ferritic steels containing Cr, W, and V being developed for fusion reactor applications. These steels would be alternatives to the Cr-Mo steels that are being considered for structural components. Eight experimental steels were produced. Chromium concentrations of 2.25, 5, 9, and 12 pct were used. Steels with these chromium compositions and with 2 pct W and 0.25 pct V were produced. To determine the effect of tungsten and vanadium, 2.25Cr steels were also produced with 2 pct W and no vanadium, and with 0.25 pct V and zero and 1 pct W. A 9Cr steel containing 2 pct W, 0.25 pct V., and 0.07 pct Ta was also studied. For all alloys, carbon was maintained at 0.11 pct. Tempering behavior of the steels was similar to that of the Cr-Mo steels being considered. Tensile studies indicate that the 2.25Cr-2W-0.25V and 9Cr-2W-0.25V-0.25V-0.07Ta steels had the highest strengths with properties similar to those of the 9Cr-1MoVNb and 12Cr-1MoVW steels, which are the strongest of the Cr-Mo steels of interest.
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5250162
- Journal Information:
- Metallurgical Transactions, (Section) A: Physical Metallurgy and Materials Science; (USA), Vol. 20A:3, Issue 3; ISSN 0360-2133
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microstructure-mechanical properties correlation of irradiated conventional and reduced-activation martensitic steels
Impact behavior of Cr-W steels
Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
FERRITIC STEELS
TENSILE PROPERTIES
THERMONUCLEAR REACTORS
MATERIALS TESTING
CHEMICAL COMPOSITION
CHROMIUM-MOLYBDENUM STEELS
HEAT TREATMENTS
THERMODYNAMICS
TUNGSTEN ALLOYS
USES
VANADIUM ALLOYS
ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
STEELS
TESTING
360103* - Metals & Alloys- Mechanical Properties
700209 - Fusion Power Plant Technology- Component Development & Materials Testing
360104 - Metals & Alloys- Physical Properties