E-viri
Recenzirano
-
Ren, Xuelei; Jiang, Xiaoqing; Yuan, Tao; Zhao, Xiaohu; Chen, Shujun
Journal of materials processing technology, September 2022, 2022-09-00, 20220901, Letnik: 307Journal Article
In this study, Al-Zn-Mg-Cu alloys with high strength and ductility were successfully prepared by wire arc additive manufacturing technology. Innovatively, the effect of composite processing (heterogeneous particles and heat treatment) on the microstructure and mechanical properties of Al-Zn-Mg-Cu alloy arc additive manufacturing deposition was studied. After composite processing, the grain morphology of the deposition was successfully transformed from coarse columnar crystals to dense equiaxed crystals, and the precipitation of nano-precipitated phases was greatly promoted. The influence of microstructure on mechanical properties was deeply investigated. Because of the modification of the microstructure, the tensile strength of the depositions increased from 206.8 ± 14.3 MPa to 503.6 ± 10.1 MPa (horizontal direction) and 256.2 ± 13.1 MPa to 501.2 ± 10.0 MPa (vertical direction), and the elongation increased from 4.1 ± 0.9 % increased to 10.9 ± 1.0 % (horizontal direction) and 6.6 ± 0.3 % to 13.4 ± 0.3 % (vertical direction), and the hardness was also increased from 117.9 HV to 197.9 HV. Finally, investigations revealed that the composite processing not only promotes the simultaneous increase of strength and elongation, but also greatly improves the anisotropy of the deposition. Fine grain strengthening is the main mechanism of increasing elongation. Precipitation strengthening is the main mechanism of strength enhancement. This research can provide theoretical guidance for improving the strength and elongation of Wire Arc Additive Manufacturing Al-Zn-Mg-Cu alloys, thus promoting engineering applications. Display omitted •Al-Zn-Mg-Cu Alloy WAAM depositions were successfully prepared by composite manufacturing.•The composite manufacturing has improved the microstructure of Al-Zn-Mg-Cu Alloy WAAM depositions.•Simultaneously increased strength and elongation of Al-Zn-Mg-Cu alloy depositions.•The effect of each performance enhancement mechanism is discussed in detail.•The properties of Al-Zn-Mg-Cu alloy depositions have reached the standard properties of commercial Al alloys.
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.