Microstructure and mechanical properties of asextruded Mg–<i>x</i>Al–5Sn–0·3Mn alloys (<i>x</i> = 1, 3, 6 and 9)

She, Jia; Pan, Fu Sheng; Peng, Peng; Tang, Ao; Yu, Zhengwen; Wu, Lei; Pan, Hucheng; Zhao, Chaoying; Gao, Zhengyuan; Luo, Siyi; Rashad, Muhammad

doi:10.1179/1743284714y.0000000540

Cited by 18 publications

(18 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Doernberg [57], the solubility of Sn in the β-phase is insignificant and the β-phase peaks in the XRD pattern were not shifted, which also suggests that the ternary solubility of Sn in the β-phase is reduced. She [58] also identified spherical Mg 2 Sn particles with 180-580 nm diameter in an asextruded Mg-9Al-5Sn-0.3Mn alloy.…”

Section: Discussionmentioning

confidence: 95%

Corrosion of Mg-9Al alloy with minor alloying elements (Mn, Nd, Ca, Y and Sn)

et al. 2017

View full text Add to dashboard Cite

Microstructure and corrosion behaviour of a Mg-9Al alloy with minor alloying additions (Mn, Y, Nd, Ca and Sn) are evaluated. All of the additions form Al-rich intermetallics with varying amounts of Fe, while Ca and Sn are also incorporated into the eutectic β-phase (β-Mg 17 Al 12). Special attention is given to the surface potential values of the microconstituents, which are related to the formation of microgalvanic couples. Scanning Kelvin Probe Force Microscopy (SKPFM) measurements revealed that all the alloying elements, except Sn, reduced the potential difference between the secondary phases and the matrix, which is the main reason for the improvement of the corrosion resistance of Mn-, Y-and Nd-modified alloys. The beneficial effect of Ca is additionally related to the microstructure refinement and an increased area fraction of the β-phase.

show abstract

Section: Discussionmentioning

confidence: 95%

Corrosion of Mg-9Al alloy with minor alloying elements (Mn, Nd, Ca, Y and Sn)

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Thus, a large amount of the Mg 2 Sn phase will precipitate during the aging treatment, and Mg-Sn alloy has therefore received significant attention with regard to the development of new high-strength RE-free Mg extrusion alloys. The mechanical properties of certain Mg-Sn-based extrusion alloys are shown in Table 4 [62][63][64][65][66][67][68][69][70].…”

Section: Mg-sn-based Alloysmentioning

confidence: 99%

“…Mg-Sn binary alloys demonstrate low mechanical properties, for example, extruded Mg-2Sn [62] and Mg-6Sn [63] binary alloys reveal a low TYS of 157 and 191 MPa, respectively. To enhance the strength of extruded Mg-Sn-based alloys, Zn and Al are often added.…”

Section: Mg-sn-based Alloysmentioning

confidence: 99%

“…Accordingly, Sasaki et al [65] developed a new Mg-9.8Sn-1.2Zn-1.0Al extrusion alloy, reaching a TYS of 308 MPa, which results from second-phase hardening of a large number of nanosized Mg 2 Sn precipitates with a spherical shape and grain refinement (~ 2 μm). She et al [63] systematically studied the properties of hot extrusion Mg-xAl-5Sn-0.3Mn alloys (x = 1, 3, 6, and 9), revealing that the UTS of as-extruded alloys increases with an increase in Al content, reaching 370 MPa for 9 wt% Al. However, the increase in Al content in a Mg-9.8Sn-1.2Zn-based alloy [66] did not show a clear enhancement when the YS of the as-extruded Mg-9.8Sn-3Al-1.2Zn (TAZ1031) alloy varies within the range of 214-319 MPa.…”

Section: Mg-sn-based Alloysmentioning

confidence: 99%

“…This extrusion technology was also introduced in the development of Mg-Sn-and Mg-Zn-based alloy. For example, Sasaki et al [63] developed an Mg-9.8Sn-1.2Zn-1.0Al alloy with a TYS of 308 MPa, an UTS of 354 MPa, and an EL of 12% through slow extrusion with the exit speed of 0.12 m/min at a low temperature of 250 °C. In addition, a TYS of over 300 MPa has been achieved in as-extruded Mg-Zn-Ag-Ca-Zr alloy through slow extrusion at a rate of 0.12 m/min [79].…”

Section: Low-temperature and Slow-speed (Ltss) Extrusionmentioning

confidence: 99%

See 2 more Smart Citations

Recent Progress and Development in Extrusion of Rare Earth Free Mg Alloys: A Review

Meng

Fan

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

Mg and its alloys are the lightest structural metals available and are extremely attractive for applications as lightweight components, particularly in the automobile, electronic, and aerospace industries. The global market for wrought Mg alloys has steadily expanded over the past decade. And numerous studies have been carried out to meet this increasing demand of high-performance Mg alloys. However, Mg extrusion alloys have had a very limited usage so far. To overcome existing industrial challenges, one desirable approach is the development of low-cost rare earth (RE) free Mg extrusion alloys with superior mechanical properties. This review will introduce the recent research highlights in the extrusion of Mg alloys, specifically focusing on low-cost RE-free Mg alloy. The results from both the literature and our previous study are summarized and critically reviewed. Several aspects of RE-free Mg extrusion alloys are described in detail: (1) novel alloying designs including Mg-Al-, Mg-Zn-, Mg-Ca-, Mg-Sn-, and Mg-Bi-based alloys, (2) advanced extrusion techniques, and (3) extrusion-related severe plastic deformation (SPD) processing. Accordingly, considering the large gap in mechanical properties between the current RE-free Mg alloys and high-performance aluminum alloys, new alloy design, processing route control, and recommendations for future research on RE-free Mg extrusion alloys are also proposed. We hope this review will not only offer insightful information regarding the extrusion of RE-free Mg alloys but also inspire the development of new Mg extrusion technologies.

show abstract