Danilo Rojko (Author), Vladimir Gliha (Author)

Abstract

The influence of a weld's thermal cycle on the microstructures and the impact toughness of the weld metal are experimentally analysed. For this purpose we used the SMITWELD simulator for the thermal cycle. With a simulator for the thermal cycle it is possible to simply reproduce the microstructures of a heat-affected zone and the microstructures of the weld metal. Also, it is possible to simulate the segregation proces as part of the weld's thermal cycle. For this purpose a different thermal cycle with a different peak temperature on a real single-pass weld joint produced by submerged arc welding was used. With this experimental work the simulation of the effect of weld build-up on the weld-metal toughness and the formation of a local brittle zone in laboratory conditions was performed.

Keywords

zvarni spoji;mehanska heterogenosti;termično varilni cikel;udarna žilavost;krhka področja;

Data

Language: Slovenian
Year of publishing:
Typology: 1.04 - Professional Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Inštitut za kovinske materiale in tehnologije Ljubljana
UDC: 621.791.052:539.55
COBISS: 7511574 Link will open in a new window
ISSN: 1580-2949
Parent publication: Materiali in tehnologije
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Other data

Secondary language: English
Secondary title: Effect of multi-pass weld bulid-up on weld-metal toughness
Secondary abstract: The influence of a weld's thermal cycle on the microstructures and the impact toughness of the weld metal are experimentally analysed. For this purpose we used the SMITWELD simulator for the thermal cycle. With a simulator for the thermal cycle it is possible to simply reproduce the microstructures of a heat-affected zone and the microstructures of the weld metal. Also, it is possible to simulate the segregation proces as part of the weld's thermal cycle. For this purpose a different thermal cycle with a different peak temperature on a real single-pass weld joint produced by submerged arc welding was used. With this experimental work the simulation of the effect of weld build-up on the weld-metal toughness and the formation of a local brittle zone in laboratory conditions was performed.
Secondary keywords: welded joints;mechanical heterogeneity;weld thermal cycle;impact toughness;brittle zones;
URN: URN:NBN:SI
Type (COBISS): Scientific work
Pages: str. 255-258
Volume: ǂLetn. ǂ36
Issue: ǂšt. ǂ5
Chronology: 2002
ID: 1746841