Szczegóły publikacji
Opis bibliograficzny
Structure, mechanical properties and wear resistance of high-vanadium cast iron / Magdalena KAWALEC, Edward FRAŚ // ISIJ International ; ISSN 0915-1559 . — 2008 — vol. 48 no. 4, s. 518–524. — Bibliogr. s. 524
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Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 52468 |
|---|---|
| Data dodania do BaDAP | 2010-07-12 |
| Tekst źródłowy | URL |
| DOI | 10.2355/isijinternational.48.518 |
| Rok publikacji | 2008 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | ISIJ International |
Abstract
A series of melts with carbon content 1.38-4.16 % and that of vanadium 5.25-15.50 % was made. The Xray diffraction of the examined alloys revealed the presence of three phases, i.e. ferrite, alloyed cementite, and VCx carbide. The relationships between the content of carbon and vanadium corresponding to eutectic structure (the eutectic line) as well as the degree of eutectic saturation S-c were determined. Besides eutectics, the high-vanadium cast iron holds the following constituents in its matrix: alloyed ferrite, granular pearlite, and lamellar pearlite as well as a mixture of alloyed ferrite+granular pearlite, granular pearlite+lamellar pearlite. The results show that passing from ferritic matrix through granular pearlitic and to lamellar pearlitic matrix, hardness HB, tensile strength R-m, and yield strength R-0.2, increases while plastic properties of alloys represented by elongation A, decreases. The wear behaviour of alloys was tested in two different modes "specimen-abrasive paper" test (PI) and "specimen-counterspecimen" test (P2). The results obtained in test P1 are following: a) alloys with ferritic matrix and of the lowest hardness (182-189HB) are characterised by the lowest abrasion wear resistance (s=3.14-3.93 mg/m), b) in alloys with a pearlitic matrix and hardness in the range of 387-416 HB the abrasion wear resistance is comparable to that of Hadfield cast steel (about s=2 mg/m) and c) cast iron with lamellar pearlite+granular pearlite matrix and hardness 322 to 401 HB gives the highest abrasion wear resistance of s=0.24-0.62 mg/m. In general, it can be stated that the abrasion wear in test P2 is higher than in test P1.
