Enhancing overall tensile and compressive response of pure Mg using nano-TiB2 particulates

Meenashisundaram, Ganesh Kumar; Seetharaman, Sankaranarayanan

doi:10.1016/j.matchar.2014.05.021

Cited by 91 publications

(36 citation statements)

References 45 publications

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“…TiB 2 particles were distributed within and on the grain boundaries which led to the grain refinement of the composite. Grain refinement was attained due to the creation of heterogeneous nucleation sites [21]. It can be clearly seen from the image, that 4 wt% TiB 2 composites underwent a substantial amount of grain refinement when compare to an unreinforced alloy.…”

Section: Methodsmentioning

confidence: 95%

Investigation on mechanical and tribological behaviour of titanium diboride reinforced martensitic stainless steel

Sadhasivam

Mohan²,

Sankaranarayanan

et al. 2020

Mater. Res. Express

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The role of metal matrix composites (MMCs) has gained huge momentum in various researches as well as in industrial applications due to their high stiffness and higher strength to weight ratio. It helps in achieving enormous weight reduction without compromising the strength of the material. In this study, a novel attempt was made to fabricate MMCs with martensitic stainless steel as matrix and titanium diboride (TiB 2 ) as reinforcement. The AISI 420 matrix with different weight percentages (1%, 2%, and 4%) of TiB 2 reinforcement was fabricated by vacuum induction melting technique (VIM). The aim of this study was to analyze the influence of TiB 2 particle addition on the mechanical and tribological properties of AISI 420 composites. X-ray diffraction studies revealed the presence of TiB 2 phase in the composite along with peak shifting and broadening of the steel matrix due to induced strain. Optical microscopy showed the distribution of TiB 2 particles in the matrix along with a significant amount of grain refinement of the composite due to the addition of TiB 2 . Microhardness results showed that the presence of TiB 2 improved the hardness with AISI 420/4%TiB 2 composite possessing the maximum hardness. Tensile test results indicated a significant improvement in the ultimate tensile and yield strength of the composite with the addition of TiB 2 . The wear tests were carried out on a pin on disc tribometer for various loads at a different sliding distance for steady sliding velocity. The dispersion of TiB 2 particle helped in achieving better wear resistance of the composites. Wear surface morphology was carried out to explore the wear mechanisms. Among the various wear mechanisms, abrasion and oxidation phenomena dominated in the composites. Taguchi optimization technique predicted that wt% of TiB 2 and applied load as influencing factors on the wear rate of the material.

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Section: Methodsmentioning

confidence: 95%

Investigation on mechanical and tribological behaviour of titanium diboride reinforced martensitic stainless steel

Sadhasivam

Mohan²,

Sankaranarayanan

et al. 2020

Mater. Res. Express

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show abstract

“…effective solidification routes to synthesize aluminium and magnesium based alloys [86,87], bulk metallic glass [88], and composites with reinforcements at micron, submicron, and nano-scales [89][90][91][92][93][94][95]. Mg and Al are two lightweight components in order to design a LWHEA for structural applications.…”

Section: Synthesis Of Lwhea Using Disintegration Meld Deposition Techmentioning

confidence: 99%

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

Kumar

Gupta

2016

Metals

Self Cite

144

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High Entropy Alloys (HEAs) are the most recently developed new class of materials, which are known for their unique structural properties. Lightweight materials are currently in excessive demand for transportation and energy saving applications. In this review, efforts have been made to summarize the work done towards the development of HEAs targeting lightweight applications. Some new synthesis techniques are suggested for the fabrication of lightweight HEAs (LWHEAs). The concept of porous structure fabrication, microwave sintering of green compact, casting by disintegration melt deposition and advanced manufacturing using additive manufacturing are discussed as future directions of LWHEAs synthesis. LWHEAs for potential biomedical applications have also been addressed.

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“…In recent years, studies have revealed that the addition of nano-reinforcements such as oxides (Al 2 O 3 [7,8], TiO 2 [9], Y 2 O 3 [10], ZnO [11] and ZrO 2 [12]), carbides (SiC [13], B 4 C [14] and TiC [15]), nitrides (BN [16], AlN [17] and TiN [18]), borides (TiB 2 [19], SiB 6 and ZrB 2 [20]), CNT [21] and graphene [22], helped to simultaneously improve the yield strength and ductility of magnesium. In these studies, a small volume fraction of approximately 1 to 2 volume percent of nano-size reinforcements have been shown to produce results comparable or even superior to that of MMCs containing a much higher volume fraction of micron size reinforcements.…”

Section: Tensile Propertiesmentioning

confidence: 99%

High Performance Lightweight Magnesium Nanocomposites for Engineering and Biomedical Applications

Wong¹,

Gupta²

2016

NanoWorld J

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Magnesium is the lightest structural metal that can be used for engineering applications and its non-toxic nature makes it attractive for use as a biomedical implant. The judicious addition of nanoparticles to magnesium assists in enhancing multiple engineering properties that are critical for its widespread use and are superior to that exhibited by conventional micron-size particles containing composites. The ability to improve mechanical properties with the use of smaller volume fraction of reinforcements while keeping density low makes magnesium nanocomposites an attractive choice for lightweight engineering and bio-resorbable biomedical applications. In view of the exceptional response of magnesium in presence of nano-length scale reinforcements, an attempt is made in this paper to provide a brief review of characteristics of several magnesium nanocomposites illustrating the effects of ceramic and metallic reinforcements to enhance mechanical properties.

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Enhancing overall tensile and compressive response of pure Mg using nano-TiB2 particulates

Cited by 91 publications

References 45 publications

Investigation on mechanical and tribological behaviour of titanium diboride reinforced martensitic stainless steel

Investigation on mechanical and tribological behaviour of titanium diboride reinforced martensitic stainless steel

An Insight into Evolution of Light Weight High Entropy Alloys: A Review

High Performance Lightweight Magnesium Nanocomposites for Engineering and Biomedical Applications

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