Print

2010 №08 (02) 2010 №08 (04)

The Paton Welding Journal 2010 #08
TPWJ, 2010, #8, 16-20 pages
 
PROPERTIES OF WELDED JOINTS OF RAIL STEEL IN ELECTRIC ARC WELDING


Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 8, 2010 (August)
Pages                      16-20
 
 
Authors
V.D. POZNYAKOV, V.M. KIRIAKOV, A.A. GAJVORONSKY, A.V. KLAPATYUK and A.S. SHISHKEVICH

E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The results of investigations of effect of thermodeformational cycles of welding on structural changes, strength and ductility properties of HAZ metal of welded joints of rail steel with carbon content of 0.72 % are given. Influence of preheating temperature and value of welding heat input on delayed fracture resistance of HAZ metal and cold crack formation in the joints was studied.
 
 
Keywords: arc welding, railway rails, welded joints, heat-affected zone, delayed fracture, cold cracks
 
 
Received:                ??.??.??
Published:               28.08.10
 
 
References
1. (1974) Technology of fusion electric welding of metals and alloys. Ed. by B.E. Paton. Moscow: Mashinostroenie.
2. Makarov, E.L. (1981) Cold cracks in welding of alloy steels. Moscow: Mashinostroenie.
3. Makara, A.M., Mosendz, N.A. (1971) Welding of highstrength steels. Kiev: Tekhnika.
4. Sergienko, Yu.V., Sagirov, I.V. (2000) Prediction of formation of hardening structures in welding of rail steels. In: Proc. of Sci. Seminar on Current Achievements in Welding, Hardfacing and Related Technologies (Mariupol, November 2000). Mariupol: PriazovGU, 9-12.
5. Grigorovich, K.V., Trushnikova, A.S., Arsenkin, A.M. et al. (2006) Study of structure and metallurgical quality of rail steels from various manufacturers. Metally, 5, 1-16.
6. Genkin, I.Z. (2004) Welding and heat treatment of rail joints. Svarochn. Proizvodstvo, 9, 31-36.
7. Sarzhevsky, V.A., Sazonov, V.Ya. (1981) Unit for simulation of thermal cycles on the base of machine MSR-75. Avtomatich. Svarka, 5, 69-70.
8. Alekseeva, L.E., Sarrak, V.I., Suvorova, S.O. et al. (1975) About two ways of relaxation of residual microstresses in martensite of steel. Metallofizika, Issue 61, 79-84.
9. Sarrak, V.I., Filippov, G.A. (1976) Delayed fracture of steel after quenching. Fiziko-Khimich. Mekhanika Materialov, 12, 44-54.