Weldability Assessment of Various Steels by Hard-Facing

Materials

Robert Ulewicz¹  Djordje Ivković²  Vukić Lazić²  Božidar Krstić²  Dušan Arsić²  Norbert Sczygiol³  Filip Pastorek⁴  Branislav Hadzima⁴  Ružica R. Nikolić⁴ 

[1] Department of Production Engineering and Safety, Czestochowa University of Technology, 42201 Czestochowa, Poland;Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Serbia;Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, 42201 Czestochowa, Poland;Research Centre, University of Žilina, Univerzitna 8215/1, 010 26 Žilina, Slovakia;

关键词: weldability;    carbon steel;    alloyed steel;    hardness;    microstructure;    preheating;   

DOI  :  10.3390/ma15093082

来源: DOAJ

【 摘 要 】

Two aspects of various steels’ weldability are considered in this article. The theoretical part presents general concepts related to steel’s weldability and the application of the most important methods for its determination. In the experimental section, results of the hard-facing application to several samples are presented, and consist of hardness measurements in the different zones of the welded samples, with the evaluation of those zones’ microstructures. The tested materials included two carbon steels and two alloyed steels, with hard-facing layers deposited by various filler metals. Experimental results were compared to results obtained by calculations; using both, authors were able to conclude which combination of filler metal, welding procedure and, if necessary, heat treatment, would achieve the optimal improvement of weldability in welding/hard-facing of each of the tested base metals.

【 授权许可】

Unknown