Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: ausferritic cast iron

Sortuj według:

Ogranicz wyniki do:

Effect of the Annealing Temperature on the Microstructure and Properties of Ausferritic Nodular Cast Iron

Gumienny G., Klimek L., Kurowska B.

Archives of Foundry Engineering

2016

Vol. 16, iss. 3

43--48

The paper presents the microstructure and selected properties of ausferritic nodular cast iron annealed at the temperature 520 and 550°C. This choice was dictated by the temperatures used in the practice of nitriding. Nodular graphite in cast iron was obtained with use of Inmold process. Cast iron containing molybdenum and copper ensuring obtaining an ausferrite in the cast iron matrix without the use of heat treatment of castings was tested. The effect of annealing temperature on the microstructure and the kind of fracture of the ausferritic nodular cast iron was presented. The effect of an annealing temperature on hardness, impact strength and the microhardness of ausferritic nodular cast iron matrix was shown too. The lamellar structure of phases in the cast iron matrix after annealing has been ascertained. There has been an increase in hardness of an annealed cast iron and microhardness of its matrix. The reduction in the impact strength of the cast iron annealed at 520 and 550°C was approximately 10-30%. Both an increase in the hardness of cast iron as well as an decrease in its impact strength is probably due to the separation of secondary carbides during the heat treatment.

Nowoczesne odmiany żeliwa o strukturze ausferrytycznej

Kowalski A., Pytel A.

Archiwum Odlewnictwa

2006

R. 6, nr 18/2

83--88

Opisano nowe odmiany żeliwa ausferrytycznego: szarego, wermikularnego, z węglikami, z ferrytem, niskowęglowego, z martenzytem, obrabialnego mechanicznie. Podano charakterystykę, zalety, własności mechaniczne i możliwości zastosowania w/w żeliwa. Przedstawiono wyniki badań własnych wybranych odmian tego żeliwa: technologię, własności mechaniczne i strukturę po hartowaniu izotermicznym.

New variations of cast iron were described, namely cast irons ausferritic, grey, vermicular, with carbides, with proeutectoid ferrite, low-carbon, with martensite, and machinable. A characteristic of these grades of cast iron was given along with their advantages, mechanical properties and application fields. The results of own investigations conducted on some selected grades in the scope of technology, mechanical properties and structural examinations of base and austempered material were presented.