Publication detail
The Influence of Lamellar Graphite Cast Iron Annealing on Hardness and Structure
ROUČKA, J. KRUTIŠ, V. KAŇA, V. PROCHÁZKA, J. NEDELOVÁ, K.
English title
The Influence of Lamellar Graphite Cast Iron Annealing on Hardness and Structure
Type
journal article in Web of Science
Language
en
Original abstract
An analysis has been carried out of the influence of annealing time at the preheating temperature of 650 degrees C on the change in hardness and alloy structure of lamellar graphite cast iron in the working as well as in the laboratory conditions. This preheat temperature is common during reclaiming welding of castings with complex shapes. The changes in unalloyed cast iron EN-GM 200 to EN-GM 300 according to ISO 1690 standard and cast iron with low amount of elements such as Sn, Cu, Cr, and Mo and their combinations were assessed. It was found that the cast iron of higher strength grades has better hardness and structural stability. Cast iron alloyed with chromium or its combinations has the highest stability. In unalloyed cast iron, a partial degradation of pearlite occurs; in alloyed cast iron the structural changes are not conclusive.
English abstract
An analysis has been carried out of the influence of annealing time at the preheating temperature of 650 degrees C on the change in hardness and alloy structure of lamellar graphite cast iron in the working as well as in the laboratory conditions. This preheat temperature is common during reclaiming welding of castings with complex shapes. The changes in unalloyed cast iron EN-GM 200 to EN-GM 300 according to ISO 1690 standard and cast iron with low amount of elements such as Sn, Cu, Cr, and Mo and their combinations were assessed. It was found that the cast iron of higher strength grades has better hardness and structural stability. Cast iron alloyed with chromium or its combinations has the highest stability. In unalloyed cast iron, a partial degradation of pearlite occurs; in alloyed cast iron the structural changes are not conclusive.
Keywords in English
Welding cast iron; Annealing; Cast iron hardness; Structure stability
Released
17.09.2019
Publisher
POLSKA AKAD NAUK, POLISH ACAD SCIENCES
Location
WARSZAWA
ISSN
1897-3310
Volume
19
Number
4
Pages from–to
105–112
Pages count
8
BIBTEX
@article{BUT161282,
author="Jaromír {Roučka} and Vladimír {Krutiš} and Václav {Kaňa} and Jan {Procházka} and Kateřina {Nedělová},
title="The Influence of Lamellar Graphite Cast Iron Annealing on Hardness and Structure",
year="2019",
volume="19",
number="4",
month="September",
pages="105--112",
publisher="POLSKA AKAD NAUK, POLISH ACAD SCIENCES",
address="WARSZAWA",
issn="1897-3310"
}