The Paton Welding Journal, 2011, #2, 11-19 pages
EXPERIMENTAL EVALUATION OF δ1c-CURVE TEMPERATURE SHIFT AND BRITTLE-TOUGH TRANSITION OF STRUCTURAL STEELS AND WELDED JOINTS BY THE RESULTS OF STANDARD TESTS
V.P. DYADIN and L.Ya. YURKO
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
Abstract
Investigation results are given on fracture toughness based on the deformation criterion for the most common domestic low-alloy structural steels of different thicknesses. An approach to evaluation of the brittle-tough transition temperature depending on the thickness of the investigated rolled metal is suggested. Shift of the basic deformation δ1c-curve depending on the thickness of the rolled metal and its standard strength characteristics was experimentally verified.
Keywords: structural steels, welded joints, impact toughness, Charpy specimen, crack resistance characteristics, plane deformation, metal thickness, temperature shift, brittle-tough transition
Received: ??.??.??
Published: 28.02.11
References
1. Dyadin, V.P. (2010) Evaluation of temperature shift depending upon the specimen thickness by the force and deformation criteria of fracture mechanics. The Paton Welding J., 4, 14-21.
2. Girenko, V.S., Dyadin, V.P. (1990) Correlation of characteristics of crack resistance of materials and welded joints with results of standard mechanical tests. Avtomatich. Svarka, 6, 1-4.
3. Dyadin, V.P. (2004) Comparison of impact toughness values of Charpy and Mesnager specimens at tough fracture. The Paton Welding J., 4, 21-26.
4. Malinin, N.N. (1975) Applied theory of plasticity and creep. Moscow: Mashinostroenie.
5. Kawano, S., Tada, M., Yajima, H. et al. (1987) Thickness effects on brittle fracture toughness of weld metal of high tensile strength steel. Transact. of JWS, 18(1), 68-76.
6. CAN/CSA-S473-92: Canadian standard association. Steel structures. Pt 3: Of the code for the design, construction and installation of fixed offshore structures. 1992.
7. (2006) Rules for classification and construction of floating drilling units and off-shore stationary platforms: Russian Maritime Register of Shipping. St-Petersburg: RMPS.
8. Gorynin, I.V., Illiin, A.V. (2008) Theoretical and experimental investigations of brittle fracture resistance of metal of welded structures for the Arctic shelf. The Paton Welding J., 11, 20-24.
9. Musiyachenko, V.F., Mikhoduj, L.I., Kirian, V.I. et al. (1988) Fracture toughness of weld metal with yield stress of 600 to 800 MPa made in shielding gases. Avtomatich. Svarka, 6, 39-44.
10. Serensen, S.V., Girenko, V.S., Kirian, V.I. et al. (1975) Crack opening displacement in quasi-brittle and brittle fracture. Ibid., 2, 1-6.
Suggested Citation
V.P. DYADIN and L.Ya. YURKO (2011) EXPERIMENTAL EVALUATION OF δ
1c-CURVE TEMPERATURE SHIFT AND BRITTLE-TOUGH TRANSITION OF STRUCTURAL STEELS AND WELDED JOINTS BY THE RESULTS OF STANDARD TESTS.
The Paton Welding J., 02, 11-19.