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2009 №02 (07) 2009 №02 (09)


TPWJ, 2009, #2, 28-30 pages

EFFECT OF CARBON ON PHASE COMPOSITION OF WELD METAL OF WELDED JOINTS IN MARTENSITIC STEEL WITH 9 % Cr

Journal                    The Paton Welding Journal
Publisher                 International Association «Welding»
ISSN                       0957-798X (print)
Issue                       № 2, 2009 (February)
Pages                      28-30
 
 
Authors
V.Yu. SKULSKY and A.R. GAVRIK
E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
 
 
Abstract
The character of variations in phase composition of the 10Kh9MFB type weld metal depending upon its carbon content was analysed. It was found that single-phase martensitic structure of the welds could be provided at their carbon content of not less than 0.085 %. Decreasing the carbon content below the above limit leads to formation of δ-ferrite in structure of the welds.
 
 
Keywords: arc welding, tungsten electrode, filler, martensitic steel with 9 % Cr, weld metal, carbon, phase composition, formation of δ-ferrite
 
 
Received:                03.10.08
Published:               28.02.09
 
 
References
1. Skulsky, V.Yu. (2005) Metal structure in the fusion zone and HAZ of welded joints on high-chromium heat-resistant steels. The Paton Welding J., 5, 10-18.
2. Lanskaya, K.A. (1976) High-chromium heat-resistant steels. Moscow: Metallurgiya.
3. Zaruba, I.I., Kasatkin, B.S., Kakhovsky, N.I. et al. (1960) CO2 welding. Kiev: Gostekhizdat Ukr. SSR.
4. Kakhovsky, N.I., Fartushny, V.G., Yushchenko, K.A. (1975) Electric arc welding of steels. Kiev: Naukova Dumka.
5. Yuferov, V.M. (1968) About technological ductility of stainless and heat-resistant steels. Metallovedenie i Term. Obrab. Metallov, 2, 17-20.
6. Skulsky, V.Yu., Tsaryuk, A.K., Kuran, R.I. (2005) To the problem of adaptability to fabrication of heat-resistant steels with increased chromium content designed for construction of power plants of new generation of thermoelectric stations. In: Proc. of 2nd Sci.-Pract. Seminar on Improving of Welded Joint Reliability in Assembly and Repair of Technological Equipment in Power Engineering (Kiev, 6-8 December, 2005). Kiev: Ekotekhnologiya.
7. Skulsky, V.Yu., Tsaryuk, A.K., Moravetsky, S.I. (2009) Evaluation of susceptibility of welded joints of heat-resistant chromium martensitic steel to cracking at heat treatment. The Paton Welding J., 1, 5-9.
8. Zhang, Z., Farrar, J.S.M., Barnaes, A.M. (2001) Weld metals for P91 - tough enough? IIW Doc. II-A-073-00, II-1428-01.
9. Rosenbrok, L. (2001) A critical overview of the welding of P91 material. Austral. Welding J., 46(2nd Quarter), 5-8.
10. (1978) Welding in machine building: Refer. Book. Ed. by N.A. Olshansky. Moscow: Mashinostroenie.
11. Bergquist, E.-L. (1999) Consumables and welding modified 9Cr-1Mo steel. Svetsaren, 54(1/2), 22-25.
12. Marshall, A.W., Farrar, J.C.M. (2001) Welding of ferritic and martensitic 11-14 % Cr steels. Welding in the World, 45(5/6), 32-55.
13. Heuser, G. (1997) Consumables for welding in power machine building. Avtomatich. Svarka, 9, 40-44, 47.

Suggested Citation

V.Yu. SKULSKY and A.R. GAVRIK (2009) EFFECT OF CARBON ON PHASE COMPOSITION OF WELD METAL OF WELDED JOINTS IN MARTENSITIC STEEL WITH 9 % Cr. The Paton Welding J., 02, 28-30.