Wyniki wyszukiwania - BazTech

Ograniczanie wyników

3 Archives of Foundry Engineering

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: aluminium cast iron

Sortuj według:

Ogranicz wyniki do:

Analysis of structure and abrasion resistance of the metal composite based on an intermetallic FeAl phase with VC and TiC precipitates

Kopyciński D., Guzik E., Gilewski R., Szczęsny A., Dorula J.

Archives of Foundry Engineering

2013

Vol. 13, iss. 3

51--54

Metal alloys with matrix based on an Fe-Al system are generally considered materials for high-temperature applications. Their main advantages are compact crystallographic structure, long-range ordering and structural stability at high temperatures. These materials are based on an intermetallic phase of FeAl or Fe3Al, which is stable in the range from room temperature up to the melting point of 1240°C. Their application at high temperatures is also beneficial because of the low cost of production, very good resistance to oxidation and corrosion, and high mechanical strength. The casting alloy the structure of which includes the FeAl phase is, among others, high-aluminium cast iron. This study has been devoted to the determination of the effect of vanadium and titanium on the transformation of the high-aluminium cast iron structure into an in-situ FeAl-VC composite.

The structure of high-quality aluminium cast iron

Kopyciński D., Guzik E., Szczęsny A., Gilewski R.

Archives of Foundry Engineering

2012

Vol. 12, iss. 1

53-56

In this study presents the analyse of aluminium iron cast structure (as-cast condition) which are used in high temperature. While producing the casts of aluminium iron major influence has been preserve the structure of technological process parameters. The addition to Fe-C-Al alloy V, Ti, Cr leads to the improvement of functional and mechanical cast qualities. In this study, a method was investigated to eliminate the presence of undesirable Al4C3 phases in a aluminium cast iron structure and thus improve the production process. V and Ti additions in aluminium cast iron allows to development of FeAl - VC or TiC alloys. In particular, V or Ti contents above 5 wt.% were found to totally eliminate the presence of Al4C3. In addition, preliminary work indicates that the alloy with the FeAl - VC or TiC structure reveals high oxidation resistance. The introduction of 5 wt.% chromium to aluminium cast iron strengthened Al4C3 precipitate. Thus, the resultant alloy can be considered an intermetallic FeAl matrix strengthened by VC and TiC or modified Al4C3 reinforcements.

The influence of cerium mixture addition on the structure of cast iron containing about of 5% aluminium

Soiński M. S., Góraj J.

Archives of Foundry Engineering

2009

Vol. 9, iss. 4

215-218

The paper presents the influence of the treatment with cerium mixture and postinoculation with ferrosilicon on the structure of cast iron containing about 5% of aluminium. Rod samples of three different diameters (10 mm, 20 mm, 30 mm) have been examined. The desired test samples have been cast directly after modification, then 5 minutes after, and then 10 minutes after that treatment, to assess the relationship between treatment efficiency and time. It has been found that the introducing about 0.14% of cerium mix into the aluminium cast iron has resulted in occurring the nodular graphite precipitates accompanied by chunky-type graphite in the alloy.