Control of Structure and Properties of Welded Connections of Alloy Steels by Application Highly Concentrated Pulse Energy Actions

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We appraised welding modes influence on corrosion resistance of welded joints of the alloyed steels in this paper. Influence of frequency characteristics of the current on structure steel welded joints obtained by stationary modes and pulse change of their power parameters is investigated. It is established that at reduction of current frequency the structure is crushed. The conducted researches have shown that at use of pulse welding mode the mechanism of corrosion interaction of welded joints of low-alloy steels in hydrochloric acid changes: instead of intergranular corrosion proper to joints after a stationary mode pitting corrosion occurs.

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261-265

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Kurtepov M.M. About the corrosion of equipment from stainless steels at concentration by evaporation of radioactive waste / Atomic energy, Vol. 19, No. 2, 1965, P. 153-157.

DOI: 10.1007/bf01126422

Google Scholar

[2] Paton B. E, Saraev Yu.N., Lebedev V. A. Development of operating procedures of welding and pad-weld on the basis of the methods of controlled high-energy action on melting and transfer of electrode metal behavior / Proceedings of the International scientific-practical conference with elements of the scientific school for young scientists «Innovative technologies and economics in mechanical engineering». Yurga, Russia, May 20th-21st 2010. – P. 15-22.

Google Scholar

[3] Saraev Yu.N., Bezborodov V.P., Demyanchenko A.A. The management of micro metallurgical processes at the adaptive pulse-arc welding of alloyed steels / Perspective materials. – 2011. – № 13 (special issue). – P. 290-294.

Google Scholar

[4] Saraev Y. Adaptive pulse-arc welding methods for construction and repair of the main pipelines / Proceedings of The 2nd South-East European IIW International Congress «Welding – HIGH-TECH Technology in 21st century». Sofia, Bulgaria, October 21st-24th 2010. – P. 174-177.

Google Scholar

[5] Saraev Yu.N. Rationale of the concept of increasing safety and durability of technical systems operated in Siberia and the Far North based on application of adaptive pulse technologies of welding / Russian Journal of Heavy Machinery, No. 8, 2010, P. 14-19.

Google Scholar

[6] Saraev Yu.N., Bezborodov V.P. The influence of the energy parameters of welding process on the structure and properties of welded joints of low-alloy steels / Welding production. – 2012. – № 8. – P. 3-5.

DOI: 10.1080/09507116.2012.753276

Google Scholar

[7] Saraev Yu.N., Bezborodov V.P., Selivanov Yu.V. The influence of modes of manual arc welding on the nature of corrosion damage in acidic environments of welded joints 12X18H10T / Welding production. – 2008. – № 4. – P. 3-7.

DOI: 10.1080/09507110903210660

Google Scholar

[8] Saraev Y.N., Poletika I.M., Kozlov A.V., Nikonova I.V., Kurdjukova I.A., Ekimov V.S. Control of structure and properties of high-duty welded connections on the basis of application of pulse technological process of welding / Izvestiya VUZ. Chernaya Metallurgiya, No 9, 2003, P. 46-51.

Google Scholar

[9] Saraev Y.N., Poletika I.M., Kozlov A.V., Kirilova, N.V., Nikonova I.V., Perovskaya M.V., Ekimov V.S., Sal'ko A.E. The formation of structure and properties of welded joints at the adaptive pulse-arc welding with coated electrodes of critical structures, working in conditions of low-frequency thermal cycling / Welding production. – 2004. – № 1. – P. 22-27.

DOI: 10.1533/wint.2004.3305

Google Scholar

[10] Saraev Y.N., Poletika I.M., Kozlov A.V., Kirilova, N.V., Nikonova I.V., Sal'ko A.E. The influence of welding conditions on the structure, distribution of hardness and mechanical properties of welded joints of steam / Welding production. – 2002. – № 8. – P. 3-8.

DOI: 10.1533/wint.2003.3079

Google Scholar

[11] Saraev Y.N., Lunev A.G., Selivanov Yu.V. Calculation of the sizes of rollers of the corrosion-resistant coatings at manual arc overlaying modulated current / The technology of mechanical engineering. – 2010. – № 2. – P. 24-27.

Google Scholar

[12] Saraev Yu.N., Bezborodov V.P., Grigorieva A.A. The improvement of technological processes of welding and surfacing on the basis of methods of adaptive pulse high-energy effect on the characteristics of electrode metal transfer and solidification of weld pool / Welding and diagnostics. – 2013. – № 5. – P. 44-47.

Google Scholar

[13] Saraev Yu.N., Bezborodov V.P., Grigorieva A.A., Golikov N.I., Dmitriev V.V., Sannikov I.I. The distribution of residual stresses in welded joints of steel 09Mn2Si by methods of adaptive pulse-arc welding / Welding production. – 2014. – № 2. – P. 3-7.

DOI: 10.1080/09507116.2014.897804

Google Scholar