Machining characteristics, wear and corrosion behavior of AZ91 magnesium alloy ‐ fly ash composites produced by friction stir processing

Patle, Hemendra; Sunil, B. Ratna; Dumpala, Ravikumar

doi:10.1002/mawe.202000101

Cited by 22 publications

(13 citation statements)

References 46 publications

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“…The worn surface morphology of sample tested at room temperature under argon environment was obtained, Figure 6a. Long grooves were observed indicating removal of material by abrasion [38]. As the test is conducted under argon environment, oxidation is prevented as confirmed by the energy dispersive x‐ray spectroscopy analysis of worn surface, Figure 6d.…”

Section: Resultsmentioning

confidence: 77%

“…Abrasive action by hard asperities of steel ball is responsible for ploughing of material and formation of the grooves [37]. Also, the substrate surface tends to oxidize due to frictional heating and oxide layers form on the wear track [38]. Subsequently, these oxide layers fracture into oxide debris because of high contact pressure and sliding movement of the counter surface, contributing to further wear loss.…”

Section: Worn Surface Morphologymentioning

confidence: 99%

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Temperature‐dependent wear characteristics of ZE41 magnesium alloy under air and inert environments

Baral,

Thawre,

Sunil

et al. 2023

Materialwissenschaft Werkst

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Dry sliding wear behaviour of ZE41 magnesium alloy was evaluated under the air and argon environment at room temperature, 125 °C, and 250 °C. The coefficient of friction was increased with increasing the test temperature. At room temperature and 125 °C, the friction coefficient was reduced in the argon environment. However, at 250 °C, the friction coefficient in the argon environment was measured as higher compared to that of the tests conducted in the air environment. The wear rate increased with the increasing temperature. However, a lower wear rate was observed in the case of argon atmosphere than in air for all the test temperatures. Abrasion and delamination were dominant wear mechanisms at room temperature and 125 °C, whereas at 250 °C, thermal softening and shearing were found to be dominant. Furthermore, oxidation wear was observed as the prominent mechanism in the air environment.

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Section: Resultsmentioning

confidence: 77%

Section: Worn Surface Morphologymentioning

confidence: 99%

Temperature‐dependent wear characteristics of ZE41 magnesium alloy under air and inert environments

Baral,

Thawre,

Sunil

et al. 2023

Materialwissenschaft Werkst

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“…Where ΔW is the weight loss of samples (g). The corrosion rate calculated from H 2 volume P H (mm/year) was [33]:

true normalP_{H} = 2.088 normalV_{H}

…”

Section: Materials and Experimental Detailsmentioning

confidence: 99%

“…β a is the anodic Tafel slope, and β c is the cathode Tafel slope. The polarization resistance R p was calculated from the Bulter Volmer equation [33]:…”

Section: Corrosion Behaviormentioning

confidence: 99%

Corrosion behavior of as‐cast magnesium‐4 % zinc alloys in simulated body fluid solution: the influence of minor calcium and manganese addition

Wang

et al. 2022

Materialwissenschaft Werkst

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Biodegradable magnesium alloys have been extensively investigated for medical applications. In order to explore magnesiumg alloys with good degradable resistance, the effects of minor amounts of calcium and manganese elements on the corrosion behaviors of newly designed as‐cast degradable Mg‐4Zn‐xMn‐xCa alloys have been investigated systematically in this study. The microstructural evolution of various magnesium alloys are measured by optical microscopy, x‐ray diffraction, and scanning electronic microscopy. The corrosion properties are studied through immersion tests and electrochemical measurements. The results show that the grains are refined and the distribution of the intermetallic Mg‐4Zn‐xMn‐xCa alloys is rearranged by adding calcium and manganese elements. The lowest corrosion rate of 3.79 mm/y is achieved on the as‐cast Mg‐4Zn alloy with 0.2 wt.% calcium and 1 wt.% manganese addition. Besides, the corrosion potential (Ecorr) shifted to −1.546 VSCE with the addition of 0.2 wt.% calcium and 1 wt.% manganese. This is because the grain size refinement and the formation of Mg2Ca and Ca2Mg6Zn3 phases. The as‐cast Mg‐4Zn‐1Mn‐0.2Ca alloy can be considered an ideal material for biodegradable implant material application.

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“…In previous studies, the strengthening, tribological and corrosion properties of the Mg-hybrid composites with varying reinforcing particles have been investigated. However, in the literature review, the effect of reinforcing particles on the corrosion behavior of AZ91Mg hybrid composites fabricated by two-step stir casting has been rarely investigated [14,15].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of AZ91/TiC/Al2O3 Hybrid Composites

Singh

Mangal

2022

J Bio Tribo Corros

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In the current research, the corrosion behaviors of AZ91 Mg-hybrid composites amalgamated with titanium carbide and alumina reinforcing particles have been investigated. AZ91 Mg-hybrid composites have been developed by using the bottom pouring vacuum-based stir casting process to attain the homogeneous distribution of reinforcing particles in the AZ91-Mg matrix. The corrosion behavior of AZ91-hybrid composites has been evaluated by using corrosion potential (OCP) and potential dynamic polarization scans, as well as friction coe cient, has been deduced to examine the wear behavior of hybrid composites in sodium chloride (3.5%) solution. However, before and after each corrosion and wear test of AZ91-hybrid composites samples, the metallographic structures have been examined by using a scanning microscopic setup. The corrosive results reveal that the corrosion rate of the AZ91-Mg matrix has been greater than AZ91/TiC/Al 2 O 3 composites. The results also con rm that the corrosion resistance increases with an increase in wt. % of TiC and Alumina. The prime reason for to increase in the corrosion rate is due to the increase in the number of matrix/reinforcement interfaces. However, the friction coe cient and wear rate of AZ91 Mg-hybrid composites rose with the increase in TiC wt. %. The type of wear mechanism of AZ91 Mg-hybrid composites has been demonstrated that initially abrasive wear has been observed but later it predominantly transforms to both (i.e. adhesive and abrasive wear) with an increase in TiC wt. %.

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Machining characteristics, wear and corrosion behavior of AZ91 magnesium alloy ‐ fly ash composites produced by friction stir processing

Cited by 22 publications

References 46 publications

Temperature‐dependent wear characteristics of ZE41 magnesium alloy under air and inert environments

Temperature‐dependent wear characteristics of ZE41 magnesium alloy under air and inert environments

Corrosion behavior of as‐cast magnesium‐4 % zinc alloys in simulated body fluid solution: the influence of minor calcium and manganese addition

Corrosion Behavior of AZ91/TiC/Al2O3 Hybrid Composites

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