Role of magnesium and minor zirconium on the wear behavior of 5xxx series aluminum alloys under different environments

Abstract

The tribological performance of 5xxx series aluminum alloys with ternary zirconium is evaluated at ambient conditions under dry, wet and saline environment. The experiment has been done using a Pin-on-Disk apparatus under an applied load of 20N. The sliding distances varies ranging from 116m-2772m at a sliding velocity of 0.385 ms-1. The results show that presence of Mg and Zr into this alloy helps to increase their strength and wear resistance under dry sliding condition. But they significantly suffer under wet and corrosive environment due to formation of β-phase Al3Mg2, to slip bands and grain boundaries which may lead to and stress-corrosion cracking. The variation of friction coefficient is observed in wet and corrosive environment due to the formation of oxidation film, lubrication, and corrosion action in solution. The SEM fracture surface shows that brittle Al3Mg2 phase initiate the brittle fracture surface for Al-Mg alloy and Zr addition accelerate the brittleness of the alloy owing the fine precipitates of Al3Zr.

Results of Sn/Pb solder affected aluminum under wear study

“…Change of surfaces color also confirm it. The size of the debris and particles is smaller than that of the dry sliding condition, and there are no signs of a crack or plastic deformation [43].…”

“…The worn surface of solder affected along with minor added alloys show the surface morphology of low cracks but higher oxide layer indicating the white color on the surface compare to base metal pure Al. The wear scars and fragments show how abrasive wear, delamination wear, and oxidation wear all contribute to wear [43].…”

The Impact of Temperature Conditions on the Manufacturing Process and Mechanical Behavior of Beverage Can Ends during Operation

“…These aluminum alloys have the highest strength among non-heat treatable alloys. The mechanical properties of non-heat treatable alloys are lost if subsequent heating is performed on the cold worked alloy [ 25 ]. Table 1 provides the chemical composition of the AA5182 base materials used in this study [ 26 ].…”

Wear studies on Al-Si automotive alloy under dry, fresh and used engine oil sliding environments

“…Under these circumstances, the Si particles lose their role of frictional properties. The film produced by the used oil makes the higher coefficient of friction [44,47].…”