issn 2300-1674 biuletyn - institute of welding bulletin
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No. 5/2020
BIULETYNINSTYTUTU SPAWALNICTWA
ISSN 2300-1674
IIW International Congress and 62nd International Welding Conference: Cutting-Edge Welding Engineering - Modernity of the Future
BIMONTHLY
BIULETYNINSTITUTE OF WELDING BULLETIN
INSTYTUTU SPAWALNICTWA
CONTENTS
•The Analysis of the Microstructure of Welded Joints in Steel P5 after Service Agata Merda, Grzegorz Golański, Paweł Wieczorek, Kamil Staszałek .................................................. 7
•Deep-Penetration Welding as a Method for Saving Materials and Increasing the Load-Carrying Capacity of Welded Structures Krzysztof Kudła, Kwiryn Wojsyk, Krzysztof Makles, Michał Macherzyński ......................................... 13
•Welding of Joints in New Generation Martensitic Steel THOR 115 Krzysztof Kwieciński, Michał Urzynicok, Antonella Ferrara, Valentina Barsan ................................... 21
•Selected Aspects of Ultrasonic Testing of Advanced Materials Łukasz Rawicki, Jacek Słania ...................................... ........................................................................... 33
•The Use of Arc Welding Processes in the Additive Manufacturing of Metallic Products Krzysztof Pańcikiewicz ............................................... ........................................................................... 43
•The Effect of a Welding Technology on the Abrasive Wear Resistance of Joints in Abrasion-Resistant Plates Michał Szymura, Artur Czupryński ............................ ........................................................................... 49
No. 5
INSTITUTE OF WELDING
The International Institute of Welding and The European Federation for Welding,
Joining and Cutting member
This work is licenced under
Creative Commons Attribution-NonCommercial 3.0 License
BIULETYN INSTYTUTU SPAWALNICTWANo. 5/2020 3
Summaries of the articlesA. Merda, G. Golański, P. Wieczorek, K. Staszałek – The Analysis of the Microstructure of Welded Joints in Steel P5 after Servicedoi: 10.17729/ebis.2020.5/1
The material subjected to the tests discussed in the article was a section of a welded joint made of bainitic steel P5. The joint subjected to analysis was sampled from a pipe section exposed to the effect of elevated temperature for more than 96 000 hours. The metallurgi-cal tests revealed a relatively low degree of the degradation of the test joint. The microstruc-ture contained retained bainite and precipi-tates of various morphology. The identification of precipitates revealed the presence of M23C6 and M2C precipitates in the joint. The M23C6 carbides were observed along the boundaries of former austenite grains. The above-named identification of precipitates also revealed the presence of M2C and M23 C6 carbides within the grains/laths. The insignificant exhaustion of the joint microstructure might be ascribed to the fact that the joint was subjected to relative-ly low temperature for a relatively short time.
K. Kudła, K. Wojsyk, K. Makles, M. Macherzyński – Deep-Penetration Welding as a Method for Saving Materials and Increasing the Load-Carrying Capacity of Welded Structuresdoi: 10.17729/ebis.2020.5/2
The study presents possible savings resulting from the use of deep-penetration welding pro-cesses in the fabrication of welded structures. The study-related tests revealed 80% savings of filler metals and the 50% reduction of welding distortions without compromising the maxi-mum load-carrying capacity of welded joints. The tests involved steel grades S355J2, S460NL, S700MC, S690QL and 450HBW (Hardox)
having thicknesses restricted within the range of 8 mm to 20 mm as well as filler metal grades G4Si1 and G69.
K. Kwieciński, M. Urzynicok, A. Ferrara, V. Barsan –Welding of Joints in New Generation Martensitic Steel THOR 115doi: 10.17729/ebis.2020.5/3
Present development of the materials used in power industry for elements of power boilers operated at supercritical parameters creates new challenges for welding. There are imple-mented new combinations of alloy additives to improve mechanical properties of the steel, including creep resistance and oxidation. It af-fects weldability of the new types of steel. Mar-tensitic steels containing 9% of Cr are indicated as creep-resistant but not resistant to oxida-tion over 600°C, whereas steels containing 12% Cr, i.e. VM12-SHC lub X20CrMoV12-1, are sig-nificantly more resistant to oxidation, but less durable in higher temperature. In 2018 Italian company Tenaris developed new type of steel Thor ™ 115 (Tenaris High Oxidation Resistance) consisting of 12% Cr. The article presents test results of welding steel pipes using different consumables (W CrMo91, S Ni 6082 and EPRI P87). There have been conducted non-destruc-tive (VT, PT, RT) and destructive tests (tension, bending, impact strength, hardness tests), also macroscopic and microscopic metallographic tests to confirm high quality of welded joints.
Ł. Rawicki, J. Słania – Selected Aspects of Ultrasonic Testing of Advanced Materialsdoi: 10.17729/ebis.2020.5/4
Welding is considered as a “Special Process”, which means that its quality cannot be read-ily verified and its successful application re-quires specialist management, personnel and
No. 5/20204 BIULETYN INSTYTUTU SPAWALNICTWA
procedures. It is important to conduct prop-er testing of the welded joints, including volu-metric testing. In this case there are conducted ultrasonic testing, which enable detecting volu-metric discontinuities. Ultrasonic testing meets many problems while testing joints with large anisotropy. The problems are caused by the physical phenomena, e.g. transformation, dis-persion and absorption of the wave. It is con-nected with the structure of the material, which cause different propagation of the ultrasonic beam. The article presents the review of the fac-tors affecting the quality of ultrasonic testing.
K. Pańcikiewicz – The Use of Arc Welding Processes in the Additive Manufacturing of Metallic Productsdoi: 10.17729/ebis.2020.5/5
The article presents examples of additive man-ufactured products obtained using MIG /MAG welding processes (13). The research-related tests revealed that it is possible to make prod-ucts of unalloyed steels having the structure similar to castings subjected to heat treatment.
Products made of maraging steel require ho-mogenising (heat treatment). It is possible to produce bimetallic products, e.g. unalloyed steel-bronze.
M. Szymura, A. Czupryński – The Effect of a Welding Technology on the Abrasive Wear Resistance of Joints in Abrasion-Resistant Platesdoi: 10.17729/ebis.2020.5/6
The article presents results of tests concern-ing the metal-mineral abrasive wear resistance of butt welded joints with abrasion-resistance overlay weld HARDPLATE 100S 5+3 made us-ing a covered electrode with the solid core and the flux core as well as a self-shielded flux-cored wire. The significance of the above-named ef-fect was determined using a completely rand-omized design. The scope of tests also included the analysis of the chemical and phase compo-sitions, hardness measurements as well as the macro and microscopic metallographic tests of welded joints in abrasion-resistant plates.
BIULETYN INSTYTUTU SPAWALNICTWANo. 5/2020 5
Biuletyn Instytutu SpawalnictwaISSN 2300-1674
Publisher:Łukasiewicz - Instytut Spawalnictwa
Editor-in-chief: dr hab. inż. Mirosław Łomozik
Managing editor: Marek DraganLanguage editor: R. Scott Henderson
Address:ul. Bł. Czesława 16-18, 44-100 Gliwice, Polandtel: +48 32 335 82 01(02); fax: +48 32 231 46 52
[email protected]; [email protected]://bulletin.is.gliwice.pl/
Scientific Council:Prof. Luisa Countinho
European Federation for Welding, Joining and Cutting, Lisbon, Portugal
Prof. Andrzej Klimpel Silesian University of Technology,
Welding Department, Gliwice, Poland
Prof. Slobodan Kralj Faculty of Mechanical Engineering and Naval Architecture,
University of Zagreb, Croatia
dr Cécile Mayer International Institute of Welding,Paris, France
dr Mike J. Russell The Welding Institute (TWI), Cambridge, England
Akademik Borys E. Paton Institut Elektrosvarki im. E.O. Patona, Kiev, Ukraine; Nacionalnaia Akademiia Nauk Ukrainy (Chairman)
Prof. Jan Pilarczyk Instytut Spawalnictwa, Gliwice, Poland
Prof. Edmund Tasak AGH University of Science and Technology,
Program Council:External members:
Prof. Andrzej Ambroziak Wrocław University of Technology,
Prof. Andrzej Gruszczyk Silesian University of Technology,
Prof. Andrzej Kolasa Warsaw University of Technology,
Prof. Jerzy Łabanowski Gdańsk University of Technology,
Prof. Zbigniew Mirski Wrocław University of Technology,
Prof. Jerzy Nowacki The West Pomeranian University of Technology,
dr inż. Jan Plewniak Częstochowa University of Technology,
Prof. Jacek Senkara Warsaw University of Technology,
International members:Prof. Peter Bernasovsky
Výskumný ústav zváračský - Priemyselný institút SR, Bratislava, Slovakia
Prof. Alan Cocks University of Oxford, England
dr Luca Costa Istituto Italiano della Saldatura, Genoa, Italy
Prof. Petar Darjanow Technical University of Sofia, Bulgaria
Prof. Dorin Dehelean Romanian Welding Society, Timisoara, Romania
Prof. Hongbiao Dong University of Leicester, England
dr Lars Johansson Swedish Welding Commission, Stockholm, Sweden
Prof. Steffen Keitel Gesellschaft für Schweißtechnik International mbH,
Duisburg, Halle, Germany
Eng. Peter Klamo Výskumný ústav zváračský - Priemyselný institút SR,
Bratislava, Slovakia
Akademik Leonid M. Lobanow Institut Elektrosvarki im. E.O. Patona, Kiev, Ukraine;
Prof. Dr.-Ing. Hardy Mohrbacher NiobelCon bvba, Belgium
Prof. Ian Richardson Delft University of Technology, Netherlands
Mr Michel Rousseau Institut de Soudure, Paris, France
Prof. Aleksander Zhelev Schweisstechnische Lehr- und Versuchsanstalt SLV-
München Bulgarien GmbH, Sofia
Instytut Spawalnictwa members:dr inż. Bogusław Czwórnóg;
dr inż. Zygmunt Mikno, dr inż. Adam Pietras;dr inż. Piotr Sędek prof. I.S.;
Prof. Jacek Słania,dr hab. inż. Eugeniusz Turyk prof. I.S.
