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Keywords: Hardness
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Journal Articles
Accepted Manuscript
Publisher: ASME
Article Type: Research Papers
J. Tribol.
Paper No: TRIB-23-1393
Published Online: May 9, 2024
.... The highest wear resistance was found with the LPBF cryo-treated BD sample due to increased hardness from 388 HV to 640 HV. The worn surface of test samples was examined by using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), 3D profilometer, and XRD analysis. Oxidation wear, adhesive wear...
Topics: Lasers, Steel, Wear
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2024, 146(5): 051706.
Paper No: TRIB-23-1301
Published Online: January 29, 2024
...Ankan Das; Pankaj Biswas; Sajan Kapil In this article, friction stir additive manufacturing, a solid-state process for rapid fabrication of large components, is employed to investigate laminated Al–Mg–Si alloy blocks. The study delves into microstructural changes, hardness distribution, and wear...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2024, 146(5): 051703.
Paper No: TRIB-23-1202
Published Online: January 22, 2024
... exhibited a uniform distribution of reinforced particles and grain refinement. Compared to the LM13 base alloy, NDP composite containing 15 wt% reinforcement showed significant improvement in hardness (57%), coefficient of friction (57%), mild-to-severe wear transition temperature, average steady-state wear...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2024, 146(5): 051702.
Paper No: TRIB-23-1230
Published Online: January 22, 2024
... coefficient of friction, hardness, and elastic modulus compared to untreated Ti–35Nb. The crystalline structure of the nanotubes and the oxide interface layer enhanced adhesion, preventing plastic deformation and improving tribocorrosion resistance. 1 Corresponding author. Email: arossettoluz...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. December 2023, 145(12): 121402.
Paper No: TRIB-23-1161
Published Online: September 27, 2023
...% BNNTs. Successful dispersion of nanoparticles within the aluminum matrix was achieved. The hardness of the coatings exhibited significant improvements compared to the pure aluminum coating. Specifically, the Al-BNNT coating showed a hardness increase of 14.1%, the Al-B 4 C-BNNT coating displayed...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. November 2023, 145(11): 114501.
Paper No: TRIB-22-1454
Published Online: June 7, 2023
... and mechanical variation with respect to the addition of TiB 2 onto the AA2024 surface was studied and evaluated. Results proposed an increase in mechanical strength and hardness with respect to TiB 2 addition when compared with the substrate metal. Dry sliding wear characteristics of aluminum surface composites...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. September 2023, 145(9): 091107.
Paper No: TRIB-22-1361
Published Online: May 25, 2023
... Investigation of Cu−Ni−Sn Alloy on Microstructure, Hardness and Wear Parameters Optimization Using DOE ,” Tribol. Ind. , 40 ( 1 ), pp. 156 – 163 . 10.24874/ti.2018.40.01.15 [25] Ravindran , P. , Manisekar , K. , Narayanasamy , P. , Selvakumar , N. , and Narayanasamy , R. , 2012...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. March 2023, 145(3): 031706.
Paper No: TRIB-22-1313
Published Online: November 23, 2022
... input AM-ASS will be less hard than the low heat input AM-ASS. According to Archard's wear equation, wear volume is inversely proportional to the hardness of a particular material [ 34 ]. Figure 9 clearly shows that more plastic deformation takes place at high heat input specimen (643.2 J/mm) due...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. March 2023, 145(3): 031703.
Paper No: TRIB-22-1202
Published Online: November 17, 2022
... heat treatment Hastelloy c22 residual stress wear mechanism abrasion dry friction hardness surface treatments wear mechanisms National Natural Science Foundation of China 10.13039/501100001809 No. 51801167 No. 52174007 No. 52001264 The excellent mechanical properties...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. January 2023, 145(1): 014501.
Paper No: TRIB-22-1090
Published Online: October 12, 2022
.... The microstructures were studied using a optical microscope (OM), electron backscatter diffraction (EBSD), and scanning electron microscope (SEM). Hardness is measured using Vickers’s microhardness tester. The impact of WS 2 on the friction and wear resistance of Mg-AZ91 were evaluated using a pin-on-disc apparatus...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. December 2022, 144(12): 121702.
Paper No: TRIB-22-1173
Published Online: August 18, 2022
... characteristics. The results revealed a better wear resistance and friction coefficient for recycled nanocomposites than pure magnesium. The enhanced wear resistance of recycled nanocomposites is attributed to the increased hardness and strength due to the Fe 3 O 4 nanoparticles and the turning induced...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2022, 144(10): 101708.
Paper No: TRIB-22-1089
Published Online: June 14, 2022
... a uniaxial hydraulic press under 800 MPa pressure, and thus, green compacts in Ø12 × 6 mm dimensions were produced. The green compacts produced were sintered at 1300 °C in a vacuum environment of 10 −6 mbar for 2 h. Sintered composites were characterized by hardness and density measurements...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2022, 144(10): 101703.
Paper No: TRIB-22-1026
Published Online: May 10, 2022
... conditions). Microstructural analysis revealed uniform distribution of ceramic particles in the matrix. Significant reduction in grain size and change in morphology was obtained for LB composites whereas strong interfacial bonding was obtained for LI composites. Higher hardness, lower wear-rate, and higher...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2022, 144(10): 101704.
Paper No: TRIB-22-1066
Published Online: May 10, 2022
... the hardness and wear resistance, whereas the humidity-sensitive alumina phase reduced friction at higher humidity levels. Next, CuO (5 wt%) was added to the Al 2 O 3 -B 2 O 3 composites to form Al 2 O 3 -B 2 O 3 -CuO composites. These composites showed an increase in the percentage relative density by 16–37...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. September 2022, 144(9): 091706.
Paper No: TRIB-21-1540
Published Online: May 3, 2022
... key area being space tribology. Bulk metallic glasses (BMGs) are a class of alloy characterized by their amorphous structure, which results in a material with extremely high strength, corrosion resistance, high hardness, and high elastic limit. BMGs have demonstrated improved wear resistance when...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. August 2022, 144(8): 081701.
Paper No: TRIB-21-1375
Published Online: February 14, 2022
... nanocomposites. After 1 h of mechanical milling of A356 and nano-Al 2 O 3 powders, green compacts were obtained by cold pressing. Green compacts were sintered at 550 °C in a vacuum environment (10 −6 mbar) for 1 h. Samples were characterized by density, hardness measurements, scanning electron microscopy...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2022, 144(7): 071701.
Paper No: TRIB-21-1419
Published Online: January 11, 2022
...) and energy-dispersive spectrometer (EDS). The results show that the introduction of nitrogen improves the hardness and wear resistance of Zr-based metallic glass. Compared with the non-N-doped Zr-based metallic glass, the N-doped Zr-based metallic glasses have higher hardness and lower wear-rate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051502.
Paper No: TRIB-21-1414
Published Online: December 2, 2021
... density of dislocations and short bar-shaped cementite. The bainite exhibited higher hardness and elasticity but lower plasticity than the matrix microstructure. The incongruity of plastic deformation between upper bainite and matrix microstructures will lead to stress concentration at boundary...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. May 2022, 144(5): 051704.
Paper No: TRIB-21-1360
Published Online: December 2, 2021
... to be reproducible. A NanoTest 600 hardness tester (Micro Materials Ltd., Wrexham, UK) was used to measure the coating hardness and elasticity by Oliver and Pharr method. The hardness and elasticity were measured ten times for each loading condition; the obtained values were then averaged. A Micro-Scratch...