Superior Strength with Enhanced Fracture Resistance of Al-Mg-Sc Alloy Through Two-Step Cryo Cross Rolling

Vigneshwaran, S.; Sivaprasad, K.; Narayanasamy, R.; Venkateswarlu, K.

doi:10.1007/s11661-019-05253-6

Cited by 8 publications

(2 citation statements)

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“…In recent years, various strategies have been developed to improve the properties of Al-Mg alloys with an Mg content lower than 5% (such as the development of Al5083). These strategies include adjusted processing technologies [9][10][11][12][13] and micro-alloying [14][15][16][17][18][19][20][21]. In the case of micro-alloying, Mn, Zr [14], Yb, and Sc [15,16] are believed to improve the mechanical properties of Al-Mg alloys without any deterioration in their corrosion performance.…”

Section: Introductionmentioning

confidence: 99%

“…These strategies include adjusted processing technologies [9][10][11][12][13] and micro-alloying [14][15][16][17][18][19][20][21]. In the case of micro-alloying, Mn, Zr [14], Yb, and Sc [15,16] are believed to improve the mechanical properties of Al-Mg alloys without any deterioration in their corrosion performance. It has been reported that the addition of Zn to Al5083 results in the formation of Mg 32 (Al, Zn) 49 along the grain boundaries [17,18], thus dramatically decreasing the difference in the electrode potential of certain phases [18].…”

Section: Introductionmentioning

confidence: 99%

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Improving strength and corrosion resistance of high Mg alloyed Al–Mg–Mn alloys through Ce addition

Yan

Chen

2020

Corrosion Engineering, Science and Technology

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Micro-alloying is thought to improve the performance of Al-Mg alloys commonly used in transport applications. The effect of Ce addition (not higher than 0.9 wt-%) on the microstructure, corrosion behavior, and mechanical properties of the Al-9.2Mg-0.7Mn alloy was systematically investigated to assess its potential use in engineering applications. Ce addition had a significant effect on pitting corrosion resistance due to its segregation in the Mn-rich phase. In particular, the pitting corrosion rate of the alloy in the sensitization state decreased substantially with Ce addition, and was approximately 48 and 53% lower than that of the alloy matrix with 0.1 and 0.3 wt.% Ce, respectively. In addition, its strength was improved through 0.3 wt.% Ce addition (providing an increase in ultimate tensile strength of approximately 30 MPa) at no expense to intergranular corrosion resistance, indicating that Ce micro-alloying could comprehensively improve the properties of Al-Mg-Mn alloys.

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