... and tribological properties of the fabricated Ti-6Al-4V component by identifying the optimal processing conditions. The fabricated component exhibited a maximum hardness of 395.26 HV and a minimum frictional coefficient of 0.3193 at 195 W laser power, 900 mm/s scanning speed, and 70 μm hatching distance. The wear...

... Figure Inconel 718 L-PBF additive manufacturing fretting wear dry friction hardness sliding wear mechanisms Inconel 718 is commonly and extensively used in vital parts exposed to harsh conditions in gas turbine engines and cryogenic space applications. Traditional methods...

...@bjut.edu.cn Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 01 09 2023 28 06 2024 29 06 2024 20 08 2024 abrasion contact area hardness Accepted Manuscript Not Copyedited Journal of Tribology. Received September 01, 2023...

... hardness measurements of the weld joints are performed. The surface roughness and wear behavior of the coatings are also studied. Nanoscale wear phenomena and consequent phase transformations are studied using molecular dynamics simulations. The results show that 312 and 316 stainless steels are suitable...

.... 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, 3D profilometer, and XRD analysis. Oxidation wear, adhesive wear...

... alloy industrial solid waste solidification rate mold reciprocating wear hardness sliding surface roughness and asperities The alluring characteristics of Al–Si cast alloy, such as excellent fluidity and castability, low thermal expansion, high strength-to-weight ratio, high corrosion...

...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...

... 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...

... 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...

...% 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...

... 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...

... [ 1 ]. When the hard and irregular surface slides over the smooth and delicate surface, abrasion will occur, which results in the loss of material. The severity of wear is particularly evident in auto parts, construction parts, agricultural products, and bulldozers [ 2 ]. To improve the hardness...

... experienced by the metal during the WAAM process. Higher heat input induces low hardness, which in turn causes more plastic deformation than lower heat input. As the load increases, plastic deformation transforms austenite to martensite, reducing ferrite (%) concentration. Under severe loads, worn...

... dislocation motion and displaying high residual stress. The high residual stress would accelerate the formation of microcracks and affect the integrity of the oxide layer under the plastic shear deformation of wear. In addition, there are hard oxide particles on the surface, and the existence of oxide...

.... 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...

... 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...

... 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...

... 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...

... 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...

... 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...