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MYŠKA, M. BOŘIL, P. KRUTIŠ, V. KAŇA, V. ZÁDĚRA, A.
Original Title
Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel
Type
journal article in Web of Science
Language
English
Original Abstract
This work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration from 15 minutes to 245 hours, and was also investigated in terms of anisothermal (natural) cooling after casting into the mould. The precipitation starts at grain boundaries with a consistent ferrite transformation. The work is focused on the precipitation of the sigma phase (σ) and the chi phase (χ). Examination of the microstructure was conducted using light and scanning electron microscopy. Their statistical analysis was carried out using the results of the investigations of precipitation processes in the microstructure, both within the grains and at the grain boundaries. To illustrate this impact, the surface area of precipitates was evaluated. The percentage of these intermetallic phases was calculated by measuring their area using a computer image analysis system. Based on their observations, a combined time-temperature transformation (TTT) diagram with continuous cooling transformation (CCT) curves was created.
Keywords
Precipitation, Cast duplex steel, Intermetallics, Sigma phase, Chi phase
Authors
MYŠKA, M.; BOŘIL, P.; KRUTIŠ, V.; KAŇA, V.; ZÁDĚRA, A.
Released
28. 4. 2023
Publisher
POLSKA AKAD NAUK, POLISH ACAD SCIENCES
Location
WARSZAWA
ISBN
2299-2944
Periodical
Archives of Foundry Engineering
Year of study
23
Number
2
State
Republic of Poland
Pages from
29
Pages to
34
Pages count
6
URL
https://journals.pan.pl/dlibra/show-content?id=127009
Full text in the Digital Library
http://hdl.handle.net/11012/213671
BibTex
@article{BUT183972, author="Martin {Myška} and Petr {Bořil} and Vladimír {Krutiš} and Václav {Kaňa} and Antonín {Záděra}", title="Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel", journal="Archives of Foundry Engineering", year="2023", volume="23", number="2", pages="29--34", doi="10.24425/afe.2023.144292", issn="2299-2944", url="https://journals.pan.pl/dlibra/show-content?id=127009" }