Enhancing corrosion resistance of Al-Cu/AZ31 composites synthesized by a laser cladding and FSP hybrid method

Liu, Fenjun; Yan, Ji; Sun, Zhiyong; Wang, Guozhang; Bai, Yanxia

doi:10.1080/10426914.2019.1661432

Cited by 23 publications

(13 citation statements)

References 21 publications

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“…Cladding restricts the removal of the as‐sprayed secondary phase layer in the stirring and increases the composite layer thickness. In another method, the second phase particles are coated on the workpiece surface by a suitable coating technique followed by the friction stir processing [29]. SiC and Al 2 O 3 particles were pre‐placed in a uniform layer using spray glue on the AA5083 surface, followed by friction stir processing to produce surface composites [30].…”

Section: Introductionmentioning

confidence: 99%

Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing

Sharma

Patel

Badheka

et al. 2020

Materialwissenschaft Werkst

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Aluminum surface composites have gained huge importance in material processing due to their noble tribological characteristics. The reinforcement of solid lubricant particles with hard ceramics further enriches the tribological characteristics of surface composites. In the current study, friction stir processing was chosen to synthesize hybrid surface composites of aluminum containing B 4 C and MoS 2 particles with anticipated improved tribological behavior. B 4 C and MoS 2 powder particles in 87.5: 12.5 ratio were reinforced into the AA6061 by hole and groove method. Microstructural observations indicated that reinforcement particles are well distributed in the matrix. The hardness and wear resistance of hybrid surface composites improved as compared to the base material, due to well distributed abrasive B 4 C and solid lubricant MoS 2 particles in AA6061. The hybrid surface composites achieved~32 % increased average hardness as compared to the base material. Hole method revealed~13 % better wear resistance compared to the groove method for friction stir processed hybrid surface composite, attributing to an improved homogeneity of particle distribution shown by zigzag hole pattern. Moreover, friction stir processed AA6061 without reinforcement particles exhibited reduced hardness and wear resistance due to loss of strengthening precipitates during multi-pass friction stir processing.

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Section: Introductionmentioning

confidence: 99%

Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing

Sharma

Patel

Badheka

et al. 2020

Materialwissenschaft Werkst

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“…Similar benefits of apatite layer precipitation were also seen in the previous studies. 12,13 The extent of pitting corrosion (shown by red dotted circles) can be clearly seen in digital images ( Figure 10A-O) of immersed samples, after removal of apatite layers through Cr 2 O 3 solution. Degradation rates ( Figure 7A) obtained via immersion studies are correlated with digital images of retrieved samples ( Figure 10).…”

Section: In-vitro Immersion Testingmentioning

confidence: 99%

“…It is due to the major issue related to the high reactivity of Mg metal (standard electrode potential of −2.13 V, as compared to a standard hydrogen electrode) in the physiological environment. 8,12,13 Lower pilling-Bedworth ratio (∼0.79) 14 leads to poor capability of oxide layers toward the corrosion protection. For orthopedic application, as cast Mg metal has shown significant ability to induce the new bone formation; however, the lack of sufficient mechanical property and degradation rate is still a major concern.…”

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confidence: 99%

Effect of multi‐axial hot forging process on mechanical, and corrosion resistance behavior of Mg‐3Zn alloy for temporary orthopedic implants

Jaiswal

Agrawal

Dubey

et al. 2020

Engineering Reports

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Magnesium (Mg) is a load‐bearing biocompatible material which has the ability to reduce stress shielding effect and facilitate osteocompatibility and biodegradation in the presence of body fluids. However, Mg is highly susceptible to corrosion in the physiological environment, hence leading to poor mechanical integrity. In this study, the multi‐axial hot forging (MAHF) process is performed on Mg‐3Zn alloys to study its grain refinement and possible improvement in mechanical, corrosion, and bioactivity behavior. The average grain size of the sample becomes significantly refined after the third cycle of MAHF. The yield and ultimate compressive strength of Mg‐3Zn alloys are found to increase by 70% and 41%, respectively, after the third cycle of MAHF, which is potentially due to the grain size refinement. Accelerated corrosion studies show improvements in the corrosion resistance with the refined grain structure. Additionally, in‐vitro immersion studies in the simulated body fluid for 14 days showed a reduction in the degradation rate after third cycle of MAHF, due to the increased grain boundary area, which offered more nucleation sites for apatite precipitation. This study underscores and lays the foundation for a new branch of severely deformed fine‐grained Mg‐3Zn alloy for temporary orthopedic implants.

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“…Among the alternatives, Cu, Al, Ni, and Fe have recently grabbed the consideration of tribology scientists. Owing to the supreme electrical and thermal conductivities of Cu, they are introduced as a platform of various industries; however, their applications are often suppressed by their low mechanical strength and wear resistance [152,153]. Hence, ceramic nanoparticles are often used to strengthen the Cu-matrix without considerable negative effect on the electrical and thermal conductivities [154].…”

Section: Metal Matrix Composite (Mmc)mentioning

confidence: 99%

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

et al. 2020

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Ever-increasing significance of composite materials with high thermal conductivity, low thermal expansion coefficient and high optical bandgap over the last decade, have proved their indispensable roles in a wide range of applications. Hexagonal boron nitride (h-BN), a layered material having a high thermal conductivity along the planes and the band gap of 5.9 eV, has always been a promising candidate to provide superior heat transfer with minimal phonon scattering through the system. Hence, extensive researches have been devoted to improving the thermal conductivity of different matrices by using h-BN fillers. Apart from that, lubrication property of h-BN has also been extensively researched, demonstrating the effectivity of this layered structure in reduction of friction coefficient, increasing wear resistance and cost-effectivity of the process. Herein, an in-depth discussion of thermal and tribological properties of the reinforced composite by h-BN will be provided, focusing on the recent progress and future trends.

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Enhancing corrosion resistance of Al-Cu/AZ31 composites synthesized by a laser cladding and FSP hybrid method

Cited by 23 publications

References 21 publications

Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing

Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing

Effect of multi‐axial hot forging process on mechanical, and corrosion resistance behavior of Mg‐3Zn alloy for temporary orthopedic implants

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

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Enhancing corrosion resistance of Al-Cu/AZ31 composites synthesized by a laser cladding and FSP hybrid method

Cited by 23 publications

References 21 publications

Different reinforcement strategies of hybrid surface composite AA6061/(B4C+MoS2) produced by friction stir processing

Different reinforcement strategies of hybrid surface composite AA6061/(B4C+MoS2) produced by friction stir processing

Effect of multi‐axial hot forging process on mechanical, and corrosion resistance behavior of Mg‐3Zn alloy for temporary orthopedic implants

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

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Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing

Different reinforcement strategies of hybrid surface composite AA6061/(B₄C+MoS₂) produced by friction stir processing