Brittleness temperature range of Fe-Al alloy

• Autorzy: Adamiec, J. , Kalka, M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of this paper was to experimentally determine the brittleness temperature range of an alloy based on the intermetallic FeAl phase matrix. This was done in order to evaluate the applicability of the said alloy for bonding using welding methods, and specifically, whether the character of the brittleness temperature range of the material indicates susceptibility to hot cracking. Design/methodology/approach: The research was executed using a Gleeble 3800 type simulating device. A simulation of the heating process at a set rate of 20ºC/s was conducted in order to determine the NST and then NDT temperatures during the heating stage, followed by the determination of DRT temperature during the cooling stage. This allowed to evaluate the brittleness temperature range. Findings: The executed tests allowed to determine the brittleness temperature range for the examined FeAl alloy which was found to be situated between 1320°C and the liquidus temperature for the heating stage, and down to 1330°C for the cooling stage. The index of hot cracking resistance was found to be 0.05. Research limitations/implications: The method of simulating the flow of a welding process using the Gleeble 3800 simulator allows to simply and effectively determine the characteristic temperatures of the process and the susceptibility of a given alloy to hot cracking. Originality/value: Using a Gleeble 3800 type simulator for the examination of an FeAl alloy in a semi-solid state enables one to evaluate the material’s suitability for permanent bonding, eg. welding. Such data is indispensable for a technologist or a constructor designing components made of an alloy based on the FeAl phase.

Słowa kluczowe

PL

stop metali; faza międzymetaliczna FeAl; zakres kruchości wysokotemperaturowej; pękanie na gorąco

EN

metallic alloys; FeAl intermetallics; brittleness temperature range; hot cracking

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 43--46
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Adamiec, J.

• Department of Materials Science, Silesian University of Technology, ul. Krasińskiego 8b, Katowice 40-019, Poland,

autor

Kalka, M.

• Department of Materials Science, Silesian University of Technology, ul. Krasińskiego 8b, Katowice 40-019, Poland

Bibliografia

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