The Effect of Small Amount of Titanium Addition on the Grain Refinement and Mechanical Properties of ZA48 Alloy

Yan, Shuqing; Wang, Huixian

doi:10.1007/s11665-012-0382-1

Cited by 11 publications

(2 citation statements)

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“…This work summarizes development of sand-cast highaluminum zinc alloys, represented by Zn- (25)(26) wt.% Al, and high-zinc aluminum alloys represented by Al- (27)(28)(29)(30) wt.% Zn. The investigations focused on increasing ductility through structural refinement by inoculation and by partial substitution of Cu with Ti and/or Mn-aiming to improve structural stability while maintaining other properties.…”

Section: Introductionmentioning

confidence: 99%

Main Directions of Recent Works on Al-Zn-Based Alloys for Foundry Engineering

Krajewski

Greer

Krajewski

2019

J. of Materi Eng and Perform

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The composition and structural modification of high-aluminum zinc alloys and high-zinc aluminum alloys influence their wear properties and structural stability. The work described has been aimed at improving properties of the sand-cast Al-Zn-based foundry alloys, particularly their ductility and dimensional stability, by melt inoculation and/or change of chemical composition. In a series of studies, high-aluminum Zn-(25-26) wt.% Al-(1-2.5) wt.% Cu and high-zinc Al-(27-30) wt.% Zn-(1.5-2.5) wt.% Cu alloys have been doped with different levels of added Ti and Mn. The alloysÕ structure and mechanical properties have been studied using scanning electron microscopy (SEM), light microscopy (LM), dilatometry and pin-on-disk wear measurements. A small addition of Ti introduced with Zn-4Ti master alloy leads to significant grain refinement of the high-aluminum zinc alloys. A small addition of Ti introduced with Al-3Ti-0.15C master alloy leads to significant grain refinement of the high-zinc aluminum alloys. In the ternary alloys, partially replacing Cu with Ti and/or Mn allows dimensional changes to be reduced while preserving good wear properties.

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Section: Introductionmentioning

confidence: 99%

Main Directions of Recent Works on Al-Zn-Based Alloys for Foundry Engineering

Krajewski

Greer

Krajewski

2019

J. of Materi Eng and Perform

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show abstract

“…For instance, the addition of TiB 2 to certain Al alloys [9], Zr to Al-free Mg alloys [10] and Al -Ti or Zn -Ti master alloys to hypereutectic Zn -Al alloys [11,12] results in the refinement of as-cast grain size. In the case of pure metals, planar solidification starts at the mold wall and when the melt is thermally undercooled, new spherical crystals may nucleate on potent nucleants in the liquid and grow as equiaxed grains [13].…”

Section: Introductionmentioning

confidence: 99%