Publication detail
Influence of Imposed Strain on Weldability of Dievar Alloy
IZÁK, J. BENČ, M. KUNČICKÁ, L. OPĚLA, P. KOCICH, R.
English title
Influence of Imposed Strain on Weldability of Dievar Alloy
Type
journal article in Web of Science
Language
en
Original abstract
The presented work is focused on the influence of imposed strain on the weldability of Dievar alloy. Two mechanisms affecting the microstructure and thus imparting changes in the mechanical properties were applied-heat treatment (hardening and tempering), and rotary swaging. The processed workpieces were further subjected to welding with various welding currents. In order to characterize the effects of welding on the microstructure, especially in the heat-affected zone, and determine material stability under elevated temperatures, samples for uniaxial hot compression testing at temperatures from 600 to 900 degrees C, optical and scanning electron microscopy, and microhardness testing were taken. The testing revealed that, although the rotary swaged and heat-treated samples featured comparable microhardness, the strength of the swaged material was approximately twice as high as that of the heat-treated one-specifically 1350 MPa. Furthermore, it was found that the rotary swaged sample exhibited favorable welding behavior when compared to the heat-treated one, when the higher welding current was applied.
English abstract
The presented work is focused on the influence of imposed strain on the weldability of Dievar alloy. Two mechanisms affecting the microstructure and thus imparting changes in the mechanical properties were applied-heat treatment (hardening and tempering), and rotary swaging. The processed workpieces were further subjected to welding with various welding currents. In order to characterize the effects of welding on the microstructure, especially in the heat-affected zone, and determine material stability under elevated temperatures, samples for uniaxial hot compression testing at temperatures from 600 to 900 degrees C, optical and scanning electron microscopy, and microhardness testing were taken. The testing revealed that, although the rotary swaged and heat-treated samples featured comparable microhardness, the strength of the swaged material was approximately twice as high as that of the heat-treated one-specifically 1350 MPa. Furthermore, it was found that the rotary swaged sample exhibited favorable welding behavior when compared to the heat-treated one, when the higher welding current was applied.
Keywords in English
rotary swaging; heat treatment; weldability; tool steel; Dievar; microstructure
Released
14.05.2024
Publisher
MDPI
Location
BASEL
ISSN
1996-1944
Volume
17
Number
10
Pages from–to
1–16
Pages count
16
BIBTEX
@article{BUT189283,
author="Josef {Izák} and Marek {Benč} and Lenka {Kunčická} and Petr {Opěla} and Radim {Kocich},
title="Influence of Imposed Strain on Weldability of Dievar Alloy",
year="2024",
volume="17",
number="10",
month="May",
pages="1--16",
publisher="MDPI",
address="BASEL",
issn="1996-1944"
}