Heat affected zone in surfacing chromium ledeburitic steel

Tools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG and with micro-plasma procedure. Microstructur...

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Main Authors: M. Tonkovič Prijanovič, L. Kosec
Format: Article
Language:English
Published: Croatian Metallurgical Society 2010-07-01
Series:Metalurgija
Subjects:
Online Access:http://public.carnet.hr/metalurg/Metalurgija/2010_vol_49/No_3/MET_49_3_155_160_Tonkovic.pdf
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author M. Tonkovič Prijanovič
L. Kosec
author_facet M. Tonkovič Prijanovič
L. Kosec
author_sort M. Tonkovič Prijanovič
collection DOAJ
description Tools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG and with micro-plasma procedure. Microstructure of the steel on the repaired tool was analysed by an optical and scanning electron microscope. The tool was made of chromium ledeburitic steel type W.N. 1.2379 and it was repaired by surfacing steel type W.N. 1.4718. Changes in the HAZ also depend on the type of surfacing. Besides microstructural changes, dissolution of carbides, especially primary carbides. This way the concentration of the carbide-forming elements and carbon is increased in the base around the primary carbides in the HAZ so the result is so-called secondary eutectic or secondary ledeburite.
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spelling doaj.art-f9fe0ec96b664b4aac20838ea4684f922022-12-21T20:02:29ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762010-07-01493155160Heat affected zone in surfacing chromium ledeburitic steelM. Tonkovič PrijanovičL. KosecTools get failured during work; wear is a major factor that contributes to failures. Damaged tools are replaced or filed. This paper describes typical changes that occur in the heat affected zone of tool (HAZ), which was repaired by surfacing with a TIG and with micro-plasma procedure. Microstructure of the steel on the repaired tool was analysed by an optical and scanning electron microscope. The tool was made of chromium ledeburitic steel type W.N. 1.2379 and it was repaired by surfacing steel type W.N. 1.4718. Changes in the HAZ also depend on the type of surfacing. Besides microstructural changes, dissolution of carbides, especially primary carbides. This way the concentration of the carbide-forming elements and carbon is increased in the base around the primary carbides in the HAZ so the result is so-called secondary eutectic or secondary ledeburite.http://public.carnet.hr/metalurg/Metalurgija/2010_vol_49/No_3/MET_49_3_155_160_Tonkovic.pdfrepair weldingheat affected zonemicrostructurecarbidesdissolutionsecondary ledeburite
spellingShingle M. Tonkovič Prijanovič
L. Kosec
Heat affected zone in surfacing chromium ledeburitic steel
Metalurgija
repair welding
heat affected zone
microstructure
carbides
dissolution
secondary ledeburite
title Heat affected zone in surfacing chromium ledeburitic steel
title_full Heat affected zone in surfacing chromium ledeburitic steel
title_fullStr Heat affected zone in surfacing chromium ledeburitic steel
title_full_unstemmed Heat affected zone in surfacing chromium ledeburitic steel
title_short Heat affected zone in surfacing chromium ledeburitic steel
title_sort heat affected zone in surfacing chromium ledeburitic steel
topic repair welding
heat affected zone
microstructure
carbides
dissolution
secondary ledeburite
url http://public.carnet.hr/metalurg/Metalurgija/2010_vol_49/No_3/MET_49_3_155_160_Tonkovic.pdf
work_keys_str_mv AT mtonkovicprijanovic heataffectedzoneinsurfacingchromiumledeburiticsteel
AT lkosec heataffectedzoneinsurfacingchromiumledeburiticsteel