Szczegóły publikacji
Opis bibliograficzny
Microstructure characteristic of TiC-reinforced cast steel after GTAW remelting / S. SOBULA, A. Kwiecień, E. OLEJNIK, P. PAŁKA // Archives of Foundry Engineering / Polish Academy of Sciences. Commission of Foundry Engineering ; ISSN 1897-3310. — Tytuł poprz.: Archiwum Odlewnictwa. — 2017 — vol. 17 iss. 4, s. 151–154. — Bibliogr. s. 154, Abstr. — Publikacja dostępna online od: 2018-01-16
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 112512 |
|---|---|
| Data dodania do BaDAP | 2018-03-06 |
| Tekst źródłowy | URL |
| DOI | 10.1515/afe-2017-0148 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Archives of Foundry Engineering |
Abstract
In this study, low-carbon cast steel was reinforced with TiC by SHS-B method, also known as combustion synthesis during casting method. The composite zone was then subjected to surface remelting by Gas Tungsten Arc Welding (GTAW) method. The remelting operation was realized manually, at 150 A current magnitude. Microstructure, phase composition and hardness of remelted zone were investigated. XRD results reveal that the phases of the composite zone in initial state consist of TiC and Fe alpha. Surface remelting resulted in formation of thick layers containing TiC carbides, Fe alpha and Fe gamma. Microstructural examination has shown strong refinement of titanium carbides in remelted zone and complete dissolution of primary titanium carbides synthetized during casting. The average diameter of carbides was below 2 mu m. The structural changes are induced by fast cooling which affects crystallization rate. The hardness (HV30) of the remelted layer was in the range between 250 HV and 425 HV, and was lower than hardness in initial state.
