Effect of Electron-Beam Welding Speed on Weld Metal Mechanical Properties of 5V Titanium Alloy

E. V. Terentyev, D. A. Zhgut, K. T. Borodavkina

Abstract


The results of metallographic studies of 5V titanium alloy welds obtained with the range of electron-beam welding speeds from 20 to 120 m/h are presented. It was established that at all welding speeds some identical microstructure of a weld metal is formed, which can differ only in sizes and shapes of the primary crystals. The results of Vickers hardness, ultimate tensile stress and yield stress estimation by sample-free indentation methods are shown. The weld metal hardness distribution in the transverse direction is homogeneous while from the top to the root an increase in hardness values at all welding speed modes is occurred. It was also revealed that both the hardness and strength of the weld metal grow with the rising welding speed, herewith the increase in these properties in the top of the weld is more significant than in the root. According to the analysis of the interrelation between structure and mechanical properties it was concluded that the main reason of mechanical properties fluctuations is a change in the weld metal chemical composition as a result of the volatile components evaporation during welding

Full Text:

PDF

References


Ivanova L.А., Kozlova I.R., Kudryavtsev A.S., Chudakov E.V. Research of high-temperature strength of welded titanium alloys of 5b and 37 grades with reference to products of energy-machine building [Issledovanie zharoprochnosti svarivaemykh titanovykh splavov marok 5V i 37 primenitel'no k izdeliyam energomashinostroeniya], Inorganic Materials: Applied Research, 2009, no. 3 (59), pp. 152-161. (in Russ.)

Gorynin I.V., Leonov V.P., Kudryavtsev A.S. et al. Titanic alloys in steam turbine construction [Titanovye splavy v paroturbinostroenii], Inorganic Materials: Applied Research, 2014, no. 2 (78), pp. 48-62. (in Russ.)

Kudryavtsev A.S., Panotsky D.A. Influence of heat treatm ent for the removal of residual stresses on the performance characteristics of the base metal of titanium alloy 5V [Vliyanie termicheskoy obrabotki dlya snyatiya ostatochnykh napryazheniy na kharakteristiki rabotosposobnosti osnovnogo metalla titanovogo splava 5V], Inorganic Materials: Applied Research, 2009, no. 3 (59), pp. 344-350. (in Russ.)

Leonov V.P., Mikhailov V.I., Sakharov I.Yu., Kuznetsov S.V. Welding of high-strength titanium alloys of large thicknesses for use in marine environments, Inorganic Materials: Applied Research, 2015, no.7, pp. 877-883. DOI: 10.1134/S2075113316060083

Khanzhin A.V., Fedorov A.M., Sakharov I.Yu. Development of non-standard welded joint and choice of regimes of welding at manufacturing of units from titanium alloys [Razrabotka nestandartnogo svarnogo soedineniya i vybor rezhimov svarki pri izgotovlenii uzlov iz titanovykh splavov], Inorganic Materials: Applied Research, 2011, no.2 (66), pp. 117-122. (in Russ.)

Yolkin V.N., Makarov S.V., Panfilov A.P. et al. Experience of electron-beam welding of large-sized products from titanium alloys [Opyt elektronno-luchevoy svarki krupnogabaritnykh izdeliy iz titanovykh splavov], Mezhdunarodnaya konferentsiya elektronno-luchevaya svarka i smezhnye tekhnologii: sbornik materialov i dokladov [International conference on electron beam welding and related technologies: collection of materials and reports], Moscow, 2015, pp. 450-458. (in Russ.)

Ivanova L.A., Ilyin A.V., Leonov V.P. et al.Estimation of the level and distribution of residual welding stresses in joints made of titanium alloy 5B of large thicknesses [Raschetnaya otsenka urovnya i raspredeleniya ostatochnykh svarochnykh napryazheniy v soedineniyakh iz titanovogo splava 5V bol'shikh tolshchin], Inorganic Materials: Applied Research, 2008, no.4 (56), pp. 37-53. (in Russ.)

Ivanova L.А., Kuznetsov S.V., Mikhailov V.I. et al. Weldability of high-strength titanium pseudo-α-alloys [Svarivaemost' vysokoprochnykh titanovykh psevdo-α-splavov], Inorganic Materials: Applied Research, 2009, no.3 (59), pp. 387-396. (in Russ.)

Isaev S.L. Weld formation at electron beam welding of heat-resisting alloy 20cr67ni5w4mo3ti1al of 6 mm thickness [Formirovanie svarnogo shva pri elektronno-luchevoy svarke zharoprochnogo splava KhN67VMTYu-VD tolshchinoy 6 mm], Vestnik Samarskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya: Tekhnicheskie nauki. [Bulletin of the Samara State Technical University. Series: Engineering Sciences], 2014, no.3 (43), pp. 81-84. (in Russ.)

Terentyev E.V., Dragunov V.K., Plum A.P., Shcherbakov A.V. Influence of welding speed on weld formation at EBW with through penetration [Vliyanie skorosti svarki na formirovanie shva pri ELS so skvoznym proplavleniem], Svarochnoe proizvodstvo [Welding production], 2014, no.2, pp. 25-29. (in Russ.)

Dragunov V.К., Terentyev E.V., Plum A.P. et al. Determination of the welding speed at EBW of large thicknesses with through penetration [Opredelenie skorosti svarki pri ELS bol'shikh tolshchin so skvoznym proplavleniem], Svarochnoe proizvodstvo [Welding production], 2016, no.4, pp. 20-25. (in Russ.)

Trukhanov K.Yu., Tsarkov A.V. Investigation of the influence of the weld pool shape on the danger of hot cracks [Issledovanie vliyaniya formy svarochnoy vanny na opasnost' vozniknoveniya goryachikh treshchin], Svarka i diagnostika [Welding and Diagnostics], 2014, no.1, pp. 27-31. (in Russ.)

Krivonosova E.A., Shchitsyn Yu.D., Akulova S.N. et al. Reduction of the defects of heat-resistant nickels alloys in surfacing technologies [Snizhenie defektnosti zharoprochnykh nikelevykh splavov v tekhnologiyakh naplavki], Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Mashinostroenie, materialovedenie [Bulletin of the Perm National Research Polytechnic University. Mechanical engineering, materials science], 2018, vol.20, no. 2, pp. 12-19. (in Russ.)

Terentyev E.V. Povyshenie kachestva formirovaniya svarnykh soedineniy pri elektronno-luchevoy svarke nepovorotnykh stykov so skvoznym proplavleniem: dis. … kand. tekhn. nauk [Improving the quality of formation of welded joints in electron beam welding of fixed joints with through penetration: Ph.D. thesis. tech. sciences], Moscow, 2014. (in Russ.)

Amara E.H. Humping modeling in deep penetration laser welding, Lasers in Engineering, 2011, vol. 22, is 5-6, pp. 299-308.

Ovchinnikov V.V., Egorov R.V. Porosity of seams in electron-beam welding of aluminum alloys doped with lithium [oristost' shvov pri elektronno-luchevoy svarke alyuminievykh splavov, legirovannykh litiem], Vestnik Ivanovskogo gosudarstvennogo energeticheskogo universiteta [Bulletin of the Ivanovo State Power Engineering University], 2006, no. 4. (in Russ.)

Dragunov V.K., Terentyev E.V., Goncharov A.L. et al. Influence of EBW speed on composition, structure and properties of welded joints of alloy D16 [Vliyanie skorosti ELS na sostav, strukturu i svoystva svarnykh soedineniy splava D16], Mezhdunarodnaya konferentsiya elektronno-luchevaya svarka i smezhnye tekhnologii: sbornik materialov i dokladov [International conference on electron beam welding and related technologies: collection of materials and reports], Moscow, 2015, pp. 347-360. (in Russ.)

Dragunov V.K., Terentyev E.V., Goncharov A.L., Marchenkov A.Yu. The effect of the electron beam welding speed on the chemical composition, structure and properties of welded joints in D16 aluminium alloy, Welding International. – 2016, vol. 30, pp. 948-952. DOI: 10.1080/09507116.2016.1157335

Nesterenkov V.M., Kravchuk L.A., Arkhangelsk Yu.A. Mechanical properties of joints of heat-resistant steels of grades 10Kh12M, 10Kh9MFBA, made by electron beam welding [Mekhanicheskie svoystva soedineniy zharoprochnykh staley marok 10Kh12M, 10Kh9MFBA, vypolnennykh elektronno-luchevoy svarkoy], Avtomaticheskaya svarka [Automatic welding], 2013, no. 9 (725), pp. 39-42. (in Russ.)

Shiganov I.N., Shakhov S.V., Tarasenko L.V., Plokhikh A.I. Influence of laser welding speed on the structure and properties of aluminum alloys doped with lithium and scandium [Vliyanie skorosti lazernoy svarki na strukturu i svoystva alyuminievykh splavov, legirovannykh litiem i skandiem], Tekhnologiya mashinostroeniya [Technology of mechanical engineering], 2005, no. 10, pp. 23-28. (in Russ.)

Gureeva, O.E. Grushko, V.V. Ovchinnikov, I.N. Shiganov Mechanical properties of structures of welded joints of v-1341 aluminium alloy depending on laser welding conditions [Mekhanicheskie svoystva i struktura svarnykh soedineniy alyuminievogo splava V-1341 v zavisimosti ot rezhimov lazernoy svarki], Tekhnologiya metallov [Metal Technology], 2008, no. 3, pp. 11-19. (in Russ.)

Demidov A.N., Karimbekov M.A., Marchenkov A.Yu. Investigation of the distribution of macro- and microhardness in welded joints of titanium alloy 5B, obtained by electron beam welding [Исследование распределения макро- и микротвердости], Mezhdunarodnaya konferentsiya elektronno-luchevaya svarka i smezhnye tekhnologii: sbornik materialov i dokladov [International conference on electron beam welding and related technologies: collection of materials and reports], Moscow, 2015, pp. 181-186. (in Russ.)




DOI: http://dx.doi.org/10.24892/RIJIE/20200207

Refbacks

  • There are currently no refbacks.


Copyright (c) 2021 E. V. Terentyev, D. A. Zhgut, K. T. Borodavkina

© Russian Internet Journal of Industrial Engineering. ISSN 2310-0818

E-mail: indust.engineering.ru@gmail.com

Another version of the web site: http://indust-engineering.ru