... surface of the Si 3 N 4 counterpart is shown in Fig. 11 . The chemical compositions (at%) of selected area A2 and A4 are Co 20.47 Cr 9.26 Ni 4.36 W 1.77 O 41.16 Si 8.23 N 14.74 and Co 25.83 Cr 12.04 Ni 5.09 W 1.97 O 42.27 Si 1.49 N 11.31 , respectively. The microstructures of the glaze layer...

...Nthabiseng Ntholeng; Nthape Percyval Mphasha; Itshepeng Mogaleadi Christinah Bopape; Enoch Nifise Ogunmuyiwa; Mxolisi Brendon Shongwe The influence of annealing on the microstructure, mechanical and sliding wear characteristics of Ni-based alloys produced by spark plasma sintering (SPS...

... ournal of T ribology . 30 05 2022 15 08 2022 20 08 2022 26 09 2022 electroless coatings microstructure micro-scratching friction coefficient wear mechanism Performance and cost are two important criterion material candidates are expected to excel in to be able...

...X. H. Wang; S. S. Liu; G. L. Zhao; M. Zhang In situ TiN ceramic particle reinforced FeCoNiCrMnTi high entropy alloy coating was fabricated by laser cladding processing at high purity nitrogen gas atmosphere on the AISI 304 stainless steel substrate. The effect of Ti addition on the microstructure...

... of the as-deposited sample, which are key factors for the microstructure. Since the microstructure has a periodic change with the molten pool moving, a simplified model simulating a single-track scanning can be used to explain the evolution of the microstructure, as shown in Fig. 2 . The detailed physical...

... property data under controlled conditions that may not map to the entire range of geometries over a part. Described here is the development of a modeling tool enabling prediction of the performance of parts built with AM, with rigorous consideration of the microstructural properties governing...

...% CuLa (marked by mbabbitt-2). First, bare Babbitt was modified with different contents of CuLa. The microstructure, microhardness, and wettability of Babbitt were tested and studied. Then, the tribological properties of bare Babbitt, mBabbitt-1, and mBabbitt-2 were conducted by the reciprocating mode...

... and subsurface layers. This work addresses the influence of selected deep rolling parameters (pressure, speed, feed, and number of passes) on the surface integrity (roughness, surface and subsurface microhardness, and microstructure) of AISI 1020, AISI 1065, and AISI 1080 carbon steels. Deep rolling...

...Bhupinder Singh; Sunny Zafar Metal matrix composite (MMC) clads were developed through microwave cladding technique on CA6NM substrate using different microwave power levels. The influence of microwave power was investigated on the microstructure, phase evolution, mechanical properties, and erosion...

...Y. Yang; Y. Zhu; H. Yang Selective laser melting (SLM) is a rapidly developing metal additive manufacturing technology. SLM process parameters have a direct impact on the microstructure of parts, which further affect wear behaviors. Increasing the wear resistance by tailoring process parameters...

... min. Phase analysis of processed composites revealed the formation of some hard-intermetallic compounds such as nickel silicides (NiSi, Ni 2 Si, and Ni 3 Si 2 ) and carbides (Cr 3 C 2 and Cr 7 C 3 ). Microstructure analysis confirms the favorable growth of equiaxed grains with uniform dispersion...

..., in which mild and severe wear regions were indicated. The differences in microstructure as well as microhardness in subsurfaces were compared between samples worn in the two different regions. The dynamic recrystallization (DRX) softening of the surface material was found to be responsible for mild-severe...

...Prosanta Biswas; Manas Kumar Mondal; Durbadal Mandal The microstructural morphology and wear behavior of as-cast Al–X wt% Mg 2 Si (X = 0.0, 5.0, 10.0, 15.0, and 20.0) composites were investigated through optical microscopy (OM), energy dispersive X-ray (EDX) spectrometry, scanning electron...

... microwave hybrid heating (MHH) technique. The developed composite clads showed the refined microstructure with the existence of randomly dispersed reinforcement particles inside the Ni based matrix. The phase analysis study results of the clad region revealed the formation of various hard phases of Co 3 W 3...

... volumetric wear cobalt chromium molybdenum (CoCrMo) alloy bovine calf serum lubricant microstructure According to the Arthritis Foundation, more than 46 million Americans have arthritis [ 1 ]. The Centers for Disease Control estimate that the annual burden from arthritis in the U.S. includes...

...Nick Weinzapfel; Farshid Sadeghi; Vasilios Bakolas; Alexander Liebel Rolling contact fatigue of rolling element bearings is a statistical phenomenon that is strongly affected by the heterogeneous nature of the material microstructure. Heterogeneity in the microstructure is accompanied by randomly...

... the influence of the random microstructure topology on subsurface stress distributions in Hertzian contacts. In this paper, a finite element model for analyzing subsurface stresses in an elastic half-space subjected to a general Hertzian contact load with explicit consideration of the material microstructure...

...C.-H. Goh; D. L. McDowell; R. W. Neu The role of microstructure is quite significant in fretting because the scale of plastic strain localization near the surface is on the order of key microstructure features. A dual-phase Ti-6Al-4V alloy that tends to be susceptible to fretting is considered...

...Dana R. Swalla, Graduate Research Assistant; Richard W. Neu, Associate Professor; David L. McDowell, Regent’s Professor This study is focused on characterization of microstructural changes linked to deformation and crack formation mechanisms in duplex Ti-6Al-4V specimens used in displacement...

...B. Podgornik; M. Kalin; J. Vizˇintin; F. Vodopivec, Professor In fretting wear, the microstructure and the mechanical properties of the surface and subsurface layer depend significantly on the temperature field produced in the fretting zone. Information reported in the literature indicate...