Contents of the Paton Welding Journal
no.3, 2009 |
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Page |
| SCIENTIFIC AND TECHNICAL |
Maksymova S.V. Formation of brazed joints on titanium aluminide | 2 |
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Studied were the features of formation of brazed joints on titanium aluminide, produced by radiation heating in vacuum using brazing filler metals based on the Ti-Zr system and alloyed with other elements. It is noted that utilisation of copper and nickel containing filler metals does not allow producing a homogeneous structure of metal of the brazed seams. Alloying the Ti-Zr system with iron, manganese and other elements provides structure and properties of the brazed seams close to those of the base material. |
Skulsky V.Yu. Thermokinetic peculiarities of formation of cold cracks in welded joints on hardening heat-resistant steels | 8 |
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Crack resistance of welded samples of steels with martensite and martensite-bainite transformations under isothermal conditions at different heating temperatures was studied by using the «Implant» testing machine equipped with the automatic heating and temperature monitoring system. It is shown that the risk of cold cracking of welded joints on martensitic steels is run in cooling after welding, starting from temperatures of 140-120°C. The welded joints on steel with the bainitic-martensitic structure become sensitive to cracking at a temperature below 80 °C. |
Kuchuk-Yatsenko V.S., Shvets V.I., Sakhatsky A.G. and Nakonechny A.A. Features of resistance welding of titanium aluminides using nanolayered aluminium-titanium foils | 11 |
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Peculiarities and prospects of application of resistance welding of titanium aluminides are considered. It is shown that nanolayer foils of the Ti-Al system used as inserts provide uniform heating of the workpiece and improve formation and properties of the joints. |
Shonin V.A., Mashin V.S., Murashov A.P., Zelenin V.I., Demianov I.A., Pashulya M.P. and Teplyuk V.M. Role of protective coating of aluminium alloy welded joints in fatigue resistance | 15 |
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Influence of thermal aluminium coating on mechanical properties of butt joints of AMg6 alloy with a longitudinal weld made by MIG welding and of the modulus of elasticity on the coating fatigue life was studied. |
| INDUSTRIAL |
Titarenko V.I., Tkachenko O.V., Matiko D.Yu., Pilipko V.I., Mudraninets I.F. and Mudraninets I.I. Experience in designing and manufacture of welding-and-surfacing instalations | 18 |
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The experience in work of a small enterprise in design and manufacture of specialized welding-and-surfacing equipment using modular principle and wide cooperation has been considered. The system works of some installations and fields of their application are described. |
Shatan A.F., Andrianov A.A., Sidorets V.N. and Zhernosekov A.M. Efficiency of stabilisation of the alternating-current arc in covered-electrode welding | 21 |
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Efficiency of the optimised modes for stabilisation of the alternating-current arc was studied. It is shown that manual a-c arc welding of 18-10 type steel provides properties of the welded joints similar to those achieved with d-c welding. |
Shalomeev V.A., Tsivirko E.I., Petrik I.A. and Lukinov V.V. Welding repair of surface defects in Ml-10 alloy castings by using scandium-containing material | 23 |
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The effect of scandium content in filler alloy Ml-10 on quality of welding-repaired cast magnesium parts has been studied. It is noted that scandium exerts a modifying effect on mechanical properties and heat resistance of the alloy. Utilisation of the scandium-containing filler metal for welding repair of alloy Ml-10 parts leads to a substantial increase in the level of mechanical properties of weld metal. |
Litvinov A.P. Development of inert-gas welding (Review) | 28 |
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The history of origination and development of inert-gas arc welding is considered. Its appearance was based on application of atomic-hydrogen welding and submerged-arc welding. The first TIG and MIG welding processes were developed at the beginning of the 1940s, and were applied in aluminium structure fabrication. In subsequent years, the methods for controlling metal transfer into the weld pool were developed, and different technologies for welding nonferrous metals and alloys were elaborated. |
| BRIEF INFORMATION |
Onatskaya N.A. and Demidenko L.Yu. Electrohydraulic-pulsed treatment for strengthening the surfaces of 110G13MLS steel frogs | 32 |
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The case of samples of point frogs from austenitic steel 110G13MLS was used to demonstrate the possibility of strengthening the surfaces of wear-resistant steels by jet electrohydraulic-pulsed treatment. It is determined that 1.4 times increase of hardness of the surface of a steel sample is caused by microplastic deformation of the sliding and twinning type developing in it. This results in increase of wear-resistance of the steel surface layer. |
Thesis for a scientific degree | 34 |
News | 35 |
Developed at PWI | 36 |
