Effect of Sliding Distance, Applied Load, and Weight Percentage of Reinforcement on the Abrasive Wear Properties of In Situ Synthesized Al–12%Si/TiC Composites

2013 ◽  
Vol 56 (4) ◽  
pp. 546-554 ◽  
Author(s):  
Belete Sirahbizu Yigezu ◽  
P. K. Jha ◽  
M. M. Mahapatra
Keyword(s):  
Abrasive Wear ◽  
Applied Load ◽  
Wear Properties ◽  
Weight Percentage ◽  
Sliding Distance

Effect of wear parameters on dry abrasive wear of RZ5-TiC in situ composite

2018 ◽  
Vol 70 (2) ◽  
pp. 256-263 ◽  
Author(s):  
Deepak Mehra ◽  
Manas Mohan Mahapatra ◽  
Suraj Prakash Harsha
Keyword(s):  
Weight Loss ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Coefficient Of Friction ◽  
Applied Load ◽  
Mg Alloy ◽  
Ceramic Particles ◽  
Content Type ◽  
Sliding Distance

Purpose The purpose of this study is to increase the wear resistance of Mg alloy by adding hard ceramic particles to it. The inclusion of hard ceramic particles further strengthen the Mg alloy, resulting in higher wear resistance. Mg alloys containing Zn, rare earth and Zr exhibit high specific strength and excellent creep resistance, making them suitable for aerospace components such as aircraft gearboxes and generator housings. Design/methodology/approach In the present study, composites have been produced in situ by using RZ5 mg alloy as matrix and TiC as reinforcement by self-propagating high-temperature synthesis technique. The abrasive wear behavior of RZ5 Mg alloy matrix reinforced with TiC particulates has also been examined. The pin-on-disc apparatus has been used for the tests. The abrasive paper is used as a counter body, and the results are obtained by changing sliding distance and applied load. Findings A notable enhancement in the wear resistance and mechanical properties of tested composite has been observed as compared to the RZ5 Mg alloy as a matrix. There is a uniform increment in the change in weight loss of RZ5-TiC composite with increasing sliding distance and applied load, but it decreases with increasing TiC content. The coefficient of friction (µ) also decreases uniformly with an increase in the reinforcement of TiC, but it decreases with an increase in applied load and sliding distance. The investigation of the worn composite, which determines dominant wear mechanisms as abrasion and plowing grooves on tested samples, has been done using field emission scanning electron microscopy. Originality/value The current manuscript provides a detailed abrasive wear analysis of RZ5-TiC composite by using different wear parameters. Specifically, extensive experimental data have been provided for RZ5-TiC composite. The effects of parameters such as applied load, sliding distance and Wt.% of TiC on the weight loss and coefficient of friction of the composites have been analyzed and discussed thoroughly.

Development in Wear Resistance of Fe-0.7Cr-0.8Mn Milling Balls through In Situ Reinforcing with Low Weight Percent TiC

2011 ◽  
Vol 413 ◽  
pp. 262-269 ◽  
Author(s):  
Hossein Beygi ◽  
M. Shaterian ◽  
E. Tohidlou ◽  
M.R. Rahimipour
Keyword(s):  
Wear Resistance ◽  
Applied Load ◽  
Wear Behavior ◽  
Cold Work ◽  
Weight Percent ◽  
Image Analyzer ◽  
Weight Percentage ◽  
Low Weight ◽  
Sliding Distance

In order to increase wear resistance of Fe-0.7Cr-0.8Mn cold work tool steels, low weight percentage of Ti incorporated to the alloy and subsequently, because of high affinity between additive titanium and carbon content in this alloy, low weight percentage of TiC in situ formed in matrix. These composites can be used as the milling balls in mining and cement industries because of their improved wear resistance. Formation, shape, size and distribution of TiC particles within the matrix were studied by optical microscopy equipped with image analyzer, optical emission spectroscopy, scanning electron microscopy and energy dispersive spectroscopy. Also microhardness and density of the samples measured. Abrasion wear tests were carried out using a pin on disc type machine. An experimental design based on Taguchi method was applied to investigate the effect of TiC content, applied load, sliding distance and roughness of SiC abrasive paper on wear behavior of samples. The results show that by reinforcing the Fe-0.7Cr-0.8Mn steels with low weight percentage of TiC, wear resistance of these kind of milling balls significantly increases. Sliding distance has the most influence on wear rate of samples, also weight loss of samples decreases as sliding distance, applied load and roughness of grinding decreases.

Effect of Varying Wt% of TiC on Mechanical and Wear Properties of RZ5-TiC In-Situ Composite

2018 ◽  
Vol 8 (2) ◽  
pp. 45-56 ◽  
Author(s):  
Deepak Mehra ◽  
M.M. Mahapatra ◽  
S. P. Harsha
Keyword(s):  
Wear Resistance ◽  
Wear Behavior ◽  
Wear Test ◽  
X Ray Diffraction ◽  
Wear Properties ◽  
X Ray ◽  
Tic Particle ◽  
Mechanical And Microstructural Properties ◽  
Sliding Distance

The purpose of this article is to enhance the mechanical properties and wear resistance of the RZ5 alloy used in the aerospace application by adding TiC particles. The present study discusses processing of in-situ RZ5-TiC composite fabricated by self-propagating high temperature (S.H.S.) method and its wear behavior. The effects of TiC particle on mechanical and microstructural properties of the composite are studied. The wear test is performed by varying the sliding distance and applied load. The composite is characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The results exhibited the properties like strength and hardness of RZ5-10wt%TiC composite has been increased considerably, while grain size is decreased as compared to the RZ5 alloy. The fractography indicated mixed mode (quasi-cleavage and ductile feature) failure of the composites. The wear results showed improvement in wear resistance of the composite. The FESEM showed dominate wear mechanisms are abrasion, ploughing grooves.

scholarly journals Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 610 ◽  
Author(s):  
Yu-Yang Gao ◽  
Feng Qiu ◽  
Tian-Shu Liu ◽  
Jian-Ge Chu ◽  
Qing-Long Zhao ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Wear Resistance ◽  
Carbon Source ◽  
Abrasive Wear ◽  
Carbon Sources ◽  
Abrasive Wear Resistance ◽  
Wear Properties ◽  
In Situ Tic ◽  
Hybrid Carbon

The in situ TiC/Al-Cu nanocomposites were fabricated in the Al-Ti-C reaction systems with various carbon sources by the combined method of combustion synthesis, hot pressing, and hot extrusion. The carbon sources used in this paper were the pure C black, hybrid carbon source (50 wt.% C black + 50 wt.% CNTs) and pure CNTs. The average sizes of nano-TiC particles range from 67 nm to 239 nm. The TiC/Al-Cu nanocomposites fabricated by the hybrid carbon source showed more homogenously distributed nano-TiC particles, higher tensile strength and hardness, and better abrasive wear resistance than those of the nanocomposites fabricated by pure C black and pure CNTs. As the nano-TiC particles content increased, the tensile strength, hardness, and the abrasive wear resistance of the nanocomposites increased. The 30 vol.% TiC/Al-Cu nanocomposite fabricated by the hybrid carbon source showed the highest yield strength (531 MPa), tensile strength (656 MPa), hardness (331.2 HV), and the best abrasive wear resistance.

Sliding Wear Properties of near β Titanium Alloy as a Function of β Solution Treatment Temperature

2013 ◽  
Vol 315 ◽  
pp. 567-571
Author(s):  
Srinivasu Gangi Setti ◽  
R.N. Rao ◽  
T.K. Nandy
Keyword(s):  
Weight Loss ◽  
Titanium Alloy ◽  
Sliding Wear ◽  
Applied Load ◽  
Solution Treatment ◽  
Treatment Temperature ◽  
Solution Treatment Temperature ◽  
Wear Properties ◽  
Pin On Disc ◽  
Sliding Distance

The present paper describes the effect of β solution treatment temperature on the sliding wear properties of near β titanium alloy (Ti-10V-4.5Fe-3Al) was examined under three different temperatures 800, 900 and 1000 °C, varying applied load 3, 6 and 9 kgf at a fixed rotational speed of 500 rpm for 16 minutes duration. The track diameter is varied 40, 80 and 120 mm in order to vary the sliding distance or sliding velocity. The sliding wear beahviour was studied using pin-on-disc apparatus against steel counter surface giving emphasis on the parameters such as weight loss as a function of sliding distance and applied load. It was observed from the results that the % weight loss is increases with increase in sliding distance and the load. It is also observed that the % weight loss increases with decreasing the β solution treatment temperature. Form the ANOVA analysis, it revealed that the β solution treatment temperature is not influencing that much on % weight loss as compared to that of load and sliding distance.

Abrasive wear analysis of RZ5/TiC in-situ composites: a statistical approach

2019 ◽  
Vol 71 (9) ◽  
pp. 1029-1037
Author(s):  
Deepak Mehra ◽  
Manas Mohan Mahapatra ◽  
Suraj Prakash Harsha
Keyword(s):  
Weight Loss ◽  
Statistical Analysis ◽  
Abrasive Wear ◽  
Coefficient Of Friction ◽  
Control Parameters ◽  
Content Type ◽  
Wear Analysis ◽  
Full Factorial ◽  
Sliding Distance

Purpose The RZ5 mg alloy is used in automotive and aerospace applications including helicopter gearboxes and aircraft components. These components are prone to the wear as per the demands. The present work is the study of the significance of hard particle/ceramic, i.e. titanium carbide (TiC) in RZ5 mg alloy to protect the machine components from wear. Design/methodology/approach The abrasive wear analysis of in-situ RZ5-TiC magnesium matrix composite is considered for the study. The primary focus of the present work is to analyze the effects of varying control parameters, i.e. Wt.% of TiC, sliding distance and applied load on the responses, i.e. weight loss and coefficient of friction. Full factorial design of the experiment based on statistical analysis is used. Findings It is observed that the individually Wt.% of TiC and sliding distance show the comparatively significant effect on both responses. Similarly, the interaction between sliding distance and Wt.% of TiC indicated the considerable impact on weight loss. The regression equations are developed and validated for estimating responses. It is observed that the percentage errors are not appearing more than 10 per cent of responses. Therefore, the close agreement between measured and predicted values shows the adequacy of the model. The control factor is optimized using multi-response optimization. The variations of the order of 2.47 and 2.35 per cent in target value of the coefficient of friction and weight loss are achieved. Originality/value The current manuscript provides a detailed abrasive wear statistical analysis of RZ5-TiC composite. The influence of control parameters on the responses using the full factorial design, the main effect plots and interaction effects are presented.

Microstructure and Wear Behavior of Ti-Matrix Functional Gradient Layer

2011 ◽  
Vol 311-313 ◽  
pp. 2093-2098 ◽  
Author(s):  
Fang You Hu ◽  
Ai Yong Cui ◽  
Bin Hu ◽  
Peng Fei Fu ◽  
Pei Zhong Zhao ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Alloy Powder ◽  
Wear Behavior ◽  
Wear Loss ◽  
Wear Properties ◽  
Weight Percentage ◽  
Average Hardness ◽  
Equiaxial Crystal ◽  
Rapidly Solidified

To improve the wear-resistance of Ti600, and alleviate thermal stress as well under hyperthermal and excessive temperature difference condition, experiments of Ti-matrix FGM on Ti600 substrate by pulsed Nd:YAG had been carried out. The microstructures, microhardness and phase composition of FGM were investigated. And the friction wear properties of FGM, N-FGM and Ti600 substrate were examined in atmosphere. It was found that a rapidly solidified microstructure consisting of in situ synthesized TiC reinforced phase distributed on FGM substance evenly and dispersely in the form of globular grains had three main different shapes:bulky or imperfect arborescent crystal, fine or approximately equiaxial crystal and chopped fibriform crystal. With the increasing of original Cr3C2content, the number and size of arborescent crystal increased obviously. The distribution of main alloy components was gradient and continuous, presenting the same composition and regularity to the originally preset alloy powder. FGM and N-FGM had an average hardness of approximately 1450, 4.5-5 times of Ti600 substrate, attributed to TiC primary dendrites. With the reducing of weight percentage of TiC, microhardness decreased gradiently and continuously. Meanwhile, the wear resistance of FGM and N-FGM was improved obviously. Friction coefficient, wear loss and wear rate decreased significantly, 0.3-0.5 times of Ti600 substrate.

scholarly journals Effects of Cr and Zr Addition on Microstructures, Compressive Properties, and Abrasive Wear Behaviors of In Situ TiB2/Cu Cermets

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1464 ◽  
Author(s):  
Feng Qiu ◽  
Xiangzheng Duan ◽  
Baixin Dong ◽  
Hongyu Yang ◽  
Jianbang Lu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Compressive Strength ◽  
Yield Strength ◽  
Abrasive Wear ◽  
Pure Copper ◽  
Abrasive Particle ◽  
Wear Volume ◽  
Wear Properties

: In situ micro-TiB2/Cu cermets with a different TiB2 content (40, 50, and 60 vol %) were successfully fabricated by combustion synthesis (CS) and hot press consolidation in Cu-Ti-B systems. In addition, different contents of Cr and Zr were added to the Cu-Ti-B systems. The microstructure, mechanical properties, and abrasive wear properties of the TiB2/Cu cermets were investigated. As the ceramic content increased, the yield strength and compressive strength of the cermets were found to increase, while the strain decreased. An increase in load and abrasive particle size caused the wear volume loss of the TiB2/Cu cermets to increase. When the ceramic content was 60 vol %, the wear resistance of the TiB2/Cu cermets was 3.3 times higher than that of pure copper. The addition of the alloying elements Zr and Cr had a significant effect on the mechanical properties of the cermets. When the Cr content was 5 wt %, the yield strength, ultimate compressive strength, and microhardness of the cermets reached a maximum of 997 MPa, 1183 MPa, and 491 Hv, respectively. Correspondingly, when the Zr content was 5 wt %, those three values reached 1764 MPa, 1967 MPa, and 655 Hv, respectively, which are 871 MPa, 919 MPa, and 223 Hv higher than those of the unalloyed cermets. The wear mechanism of the in-situ TiB2/Cu cermets, and the mechanisms by which the strength and wear resistance were enhanced by the addition of Zr, were preliminarily revealed.

Microstructural characterization and experimental investigations into two body abrasive wear behavior of Al-7079/TiC in-situ metal matrix composites

2019 ◽  
Vol 234 (4) ◽  
pp. 588-607 ◽  
Author(s):  
SV Sujith ◽  
Manas M Mahapatra ◽  
Rahul S Mulik
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Applied Load ◽  
Wear Behavior ◽  
Aluminum Matrix ◽  
Microstructural Characterization ◽  
Experimental Investigations ◽  
Matrix Composites ◽  
Sliding Distance

High strength Al-7079 aluminum metal-matrix composites with 5, 7 and 9 wt.% of TiC particulate reinforcement were procured by in-situ melt reaction method. Scanning electron microscopy (SEM) and XRD analysis were conducted in order to confirm the presence of titanium carbide (TiC) particles and homogeneity inside the aluminum matrix. The parameters like applied load (9.8–29.4 N), sliding distance (1000–2000 m), sliding velocity (1.5 m/s) and SiC-P-600 grit paper (25 µm) were used in this study. The influence of sliding distance, applied load and wt.% of (TiC) reinforcement on in-situ Al-7079 under two body abrasion was investigated. Further, the obtained results were compared with the base Al-7079 alloy. It was examined that, the in-situ reinforced composites exhibited significantly greater wear resistance of 20–60% compared to conventional as cast Al-7079 base matrix. Experimental results confirmed that the wt.% of TiC and sliding distance had higher influence on coefficient of friction and the weight loss was highly affected by the applied load. Further the wear mechanisms involved in the worn surfaces were demonstrated through atomic force microscopy and SEM analysis throughout the surfaces.

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