Szczegóły publikacji
Opis bibliograficzny
A coupled thermal/material flow model of friction stir welding applied to Sc-modified aluminium alloys / C. Hamilton, M. KOPYŚCIAŃSKI, O. Senkov, S. DYMEK // W: TMS2013 [Dokument elektroniczny] : 142nd annual meeting & exhibition : 4th International symposium on High-temperature metallurgical processing ; Characterization of minerals, metals, and materials 2013 ; Energy technology 2013 ; EPD congress 2013 ; Friction stir welding and processing VII ; Light metals 2013 ; Magnesium technology 2013 ; Materials processing fundamentals ; Ni-Co 2013 ; REWAS 2013 (CD) : [March 3–March 7, San Antonio, Texas] : suplemental proceedings. — Wersja do Windows. — Dane tekstowe. — [USA] : John Wiley & Sons, [2013]. — Dysk Flash. — W Bazie Scopus konferencja: 142nd Annual Meeting and Exhibition: Linking Science and Technology for Global Solutions oraz ISBN: 978-111860581-3. — e-ISBN: 978-111860578-3. — S. 329–338. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 337–338, Abstr. — Toż w wersji drukowanej. — Referat opublikowany w ramach konferencji: Friction stir welding and processing VII / eds. Rajiv Mishra [et al.]
Autorzy (4)
- Hamilton Carter
- AGHKopyściański Mateusz
- Senkov Oleg
- AGHDymek Stanisław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 76849 |
|---|---|
| Data dodania do BaDAP | 2013-10-17 |
| Rok publikacji | 2013 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Konferencja | Friction Stir Welding and Processing VII - Annual Meeting and Exhibition |
Abstract
A coupled thermal/material flow model of friction stir welding was developed and applied to the joining of Sc-modified aluminum alloy (7042-T6) extrusions. The model reveals that surface material is pulled from the retreating side into the weld zone where it is interleaved with in-situ material. Due to frictional contact with the shoulder, the surface material is hotter than the in-situ material, so that the final weld microstructure is composed of bands of material with different temperature histories. For this alloy and the associated FSW heating rates, secondary phase dissolution/ precipitation temperatures are in proximity to the welding temperatures. Therefore, depending on the surface and in-situ material temperatures in relation to these transformation temperatures, disparate precipitate distributions can develop in the bands of material comprising the weld nugget. Based on the numerical simulation and on thermal analysis data from differential scanning calorimetry, a mechanism for the formation of onion rings within the weld zone is presented.
