Introduction to Wear Analysis

Parametric study of rubbing velocity, contact pressure and contact temperature influence on Nickel based superalloy material coefficient of friction and wear analysis.

It observes that the common objective of wear analysis is to minimize the weight loss (wear), roughness, and coefficient of friction etc.

Wear Analysis allows us to find problems before they result in major repairs or machine failure.

Dental microwear analysis is a proxy for analysing the diet in extinct and extant vertebrates, especially mammals.

This paper focuses on a fundamental tool wear analysis of uncoated tungsten carbide cutting inserts with different combinations of fibre cutting angles and tool geometries.

We documented and authenticated this artifact using a combined approach of use-wear analysis with SEM microscopy, direct radiocarbon dating, and ancient DNA analysis of the animal bone, thereby setting a new standard for the investigation of runic bones.

We also conducted geochemical sourcing, ochre analyses, and microwear analysis to understand the context of the cache, regardless of its age and cultural affinity.

A series of upper teeth was subjected to mesowear analysis to assess the diet of S.

Post-wear analysis by Raman spectroscopy confirms the retention of GNPs with the enlarged defect over the worn surface.

Dry sliding wear analysis of the composites revealed the decrement in the wear rate of the composites over the base alloy.

The paper presents the results obtained by techno-typological analysis of a lithic assemblage from the Neolithic layers of Grotta San Michele Arcangelo di Saracena (Cosenza) together with the results of micro-wear analysis obtained from a preliminary selection of obsidian artifacts with different provenances distinguished by pXRF analysis.

The wear analysis was based on Taguchi’s L27 orthogonal array and Regression models, at tribo-parameters (load-15, 25, 35 N, slide velocity-1.

Using friction and wear values and wear analysis, the wear mechanisms were determined.

The study of cooking traces, as well as the morphological changes visible on botanical elements, in particular starch grains, have allowed us to establish criteria that can be employed in use-wear analysis.

Objectives Childhood paleodietary reconstruction via dental macrowear analysis is limited in part by available methods to measure dental macrowear.

The samples were tested by ball-on-flat reciprocating dry sliding for friction coefficient and wear analysis.

To explore how its persistence in this area in the Pleistocene could help us understand the ecological adaptation mechanism of the species, we used tooth micro-wear analysis to establish a micro-wear feature matrix for T.

The use-wear analysis of debitage from Maya sites not only assists in identifying the chipped stone artifacts that served as informal, ad hoc or expedient tools, but also reveals how the tools were utilized.

Our use-wear analysis has identified several types of both macro and micro-wear traces on different tools.

Present work based on dry sliding wear analysis of Al7075/6wt.

The wear analysis was performed using the IMAGIKA software.

Product quality specifications have been monitored in terms of microstructure, hardness modification, phase changes, also including tool wear analysis.

This work aims to compare various type of procedures for detection and reduction of some-frequency surface topography measurement errors (noise) and consider its influence on the results of wear analysis.

Current study investigates Al357 alloy is fortified with different percentage of ZrO2 (3%, 5% and 7%) is concocted by the stir casting and studied for a microstructure, mechanical and the statistical modelling of wear analysis.

use-wear analysis demonstrated the use of all archaeological pièces esquillées as tools for processing hard organic materials; 6.

The wear analysis shows that the H2 composite requires minimum frictional force (21.

Results from dental mesowear analysis suggest that all tragulids and pecorans were likely browsers, with only one taxon showing mesowear values that overlap with both browsers and mixed feeders in both the upper and lower molars (Canthumeryx sirtensis).

In order to deeply investigate the characteristics of the technological behaviour of the hunter-gatherers that inhabited the site, the use-wear analysis is a fundamental additional source of information and it is here aimed to understand if there is or not a differential use of the lithic artefacts according to their typology and/or to the knapping method.

Use-wear analysis of bone and lithic materials shows that some specific retouched stone tools were likely used for the production of bone implements.

Ninety-six threads were machined using one single tool, and wear analysis was performed between the first and last threads.

From the wear analysis of the coatings using wear tribometer, it was observed that less weight loss, low coefficient of friction, and less wear rate occurred in the case of 6 wt.

Wear analysis to study the tribological characterization of the hybrid composites were done with the help of a pin on disc wear testing machine.

The results of rail profile wear analysis show that with the increase of iteration times, the wear ranges and wear depths of left and right rails at the corrugation trough/crest position are close.

Keywords Wheel profile design Wheel optimization Wear simulation Reprofile simulation Wheel life estimation Wear analysis.

Present work based on dry sliding wear analysis of Al7075/6wt.

Consequently, the tool wear analysis is usually required to better understand the quality of the manufacturing process, especially when difficult-to-machine materials are involved.

This work focuses on the study of cutting parameters effects on temperatures and tool wear analysis by consideration of individual response and their optimality basing on signal-to-noise ratios.

Based on the basic theory of ferrography wear analysis, combined with computer image processing technology and pattern recognition theory, this paper extracts and analyzes the features of ferrography wear images caused by different oilfield underground mining machines.

Wear analysis carried on weld beads of composites through the pin on disc equipment.

The present investigation considers an experimental study of wear analysis of Al-6061 HMMC with SiCp & Graphitep as a reinforcement & optimization of wear testing parameters based on the Taguchi technique coupled with Linear Regression analysis.

F) and Carbon Fiber (cf) reinforced hybrid composite materials were developed and subjected to wear analysis, Thermo Gravimetric Analysis (T.

In this light, the use-wear analysis of 208 spears and swords of period I of the Early Bronze Age and 15 Late Neolithic halberds has been used to hypothesize how com -bat contributes to change aside from the personal aims of fighters.

This study deals with use-wear analysis of prehistoric grinding stones from a series of Neolithic (7th-4th millennium BC) and Bronze Age (late 4th-2nd millennium BC) sites in mainland Greece focusing in particular on cereal-processing and the action of cereal dehusking.

Wear analysis due to various speed is offenly expressed experimently through charts concerning both wear volume and sliding speed instead of mathematics.

5 ka BP [±170 y BP]) to the recent Holocene (1960s) using dental microwear analysis of carnassial teeth and stable isotope analyses of carbonates (δ13CCO3 and δ18OCO3) and collagen (δ13Ccol and δ15Ncol) from bone.

Wear analysis of the pin and disk was performed with a 3D profilometer.

In this study we move beyond basic morphological classification by combining zooarchaeological analysis, technological assessment, use-wear analysis, and materials science studies to examine an assemblage of bone tools from an ancient Native American site in central Tennessee.

Dental wear analysis through the use of an intraoral scanner is a reality of modern dentistry.

Multifaceted analyses including technological and morphological analysis and use-wear analysis were conducted to clarify the actual nature of lithic technology and tool use in relation to human behavior.

Experimental investigation of wear analysis of the composites was carried out according to the L9 Taguchi method.

Additionally, a detailed tool wear analysis was conducted.

Influence of each parameter was noticed with 3D surface plots and scanning electron microscope observations were used for wear analysis.

A hardness test, microscopic characterization and wear analysis are carried out on the samples.

Post-wear analysis performed by SEM/EDS showed differences in the coating wear track and in the ball wear track of monolithic and composite coatings.

Linear reciprocating wear analysis performed on as-cast, heat-treated alloy and composite, respectively, at varying load (10–40 N) and sliding distance (500–2000 m) confirmed increasing wear rate, with heat-treated composite having superior wear resistance.

These issues or challenges are metallurgical defects (balling, porosity and delamination), microstructural change and evaluation of mechanical properties such as high residual stress, tension and compression behavior, surface roughness and wear analysis.

We used dental microwear texture analysis and dental mesowear analysis of bison and horses (Bison priscus, Equus sp.

The automatic tool first loads the test data of WPA + wheel profile measuring instrument, eliminates the data with large error, gives the index of wheel wear and generates a report; then according to the generated report, it gives the analysis data of wheel wear, and draws the comparison diagram between the measured tread profile and the standard one, and finally gives the wear analysis conclusion.

This chapter is a comprehensive overview about the development in the field of quantitative wear analysis during the last 20 years.

Thorough wear analysis was carried out on all these castings; results show samples of Fe-Cr slag moulds showed better wear resistance than either GBF slag or sand mould samples.

ANOVA analysis revealed that the most influential parameter was in the erosive wear analysis was impact velocity followed by fiber content and impingement angle.

Additionally, the wear analysis showed that the wear resistance of the nanocomposites improved with the increment of nanoparticle content.

Post-wear analysis of the worn coating, worn alumina ball and the wear debris was performed to understand the wear mechanisms and material transfer in the investigated coatings.

An integrated data-driven ROP modelling and optimization software was developed, including functions of mechanical specific energy analysis, bit wear analysis and predict, 2D & 3D ROP sensitivity analysis, offset wells benchmark, ROP prediction, drilling parameters constraints analysis, cost per meter prediction, etc.

Tool wear analysis is done and compared by using experimental and (statistical) predicted model.

Keywords-steel plates; wear; hot rolling; Archard wear analysis.

The methods analyzed are demonstrated to possibly support practitioners along the identification of the mapping relationship between process parameters and the final quality of RSW joints as well as, more specifically, along the priority assignment for off-line testing of welded spots and the welding tool wear analysis.

Drawing on the dense archaeological accumulations at Misliya Cave, Mount Carmel, Israel, the present study seeks to trace EMP daily activities and behavioral patterns through the prism of use-wear analysis.

Low magnification dental microwear analysis is a widespread dietary proxy for palaeoenvironmental analyses.

Whilst recent studies have used microwear analysis to investigate amber beads, there are no known experimental microwear studies examining glass beads.

Use-wear analysis shows that Zhanqi community members were sophisticated creators of ceramic equipment, the ma’an cooking pot, which allowed them to prepare a wide number of dishes with limited fuel.

The identification of the use of stone tools through use-wear analysis was one the major methodological advances in Prehistoric Archaeology during the second half of the 20th century.

The prepared stir-casted materials are tested by wear analysis and microhardness analysis, through Pin-on-Disc wear tester and Vickers hardness tester, respectively.

• In the field of forensics, 3D reconstructions are helpful for the analysis of writing [11], [12], the virtual reconstruction of crime scenes [13], firearm examination proficiency tests [14] and face recognition [15], [16] • In quality control, 3D scanning can be used for production control and tool wear analysis [17]-[20].

Wear analysis is oftenly expressed experimentally through charts concerning both wear volume and sliding speed instead of mathematics.

We report on the use-wear analysis on lithic tools from the Late Pleistocene and Early Holocene.

We integrate epigraphic, iconographic and formal analyses to support this claim, but in order to interrogate the quotidian function of ceramic lekanes, we present the results of use-wear analysis performed on 130 examples.

In finite element ABAQUS®, the cam is modeled, material properties and boundary loads are set, and ALE adaptive mesh technology and Umeshmotion subroutine are also used for wear analysis.

The trasological (use wear analysis) analysis allowed the authors to distinguish and characterize the groups of the tools found in the settlement: puffins, polished astragals of small cattle, prosplitting, and scrapers.

In this study, we present the result of dental mesowear and microwear analysis and post-cranial skeleton biometry on Equus populations located in two regions in the South of France from ten sites, corresponding to twelve assemblages dated from MIS 12 to MIS 5.

Wear analysis of formed composite was evaluated by using Taguchi L16 orthogonal array to minimize the total number of experimental runs.

Load spectrum is the basis of wear analysis and life prediction in journal bearing.

Moreover, the wear analysis indicated the main wear form of the CT80 material was abrasive wear and fatigue wear.

In this work, the results of an use-wear analysis of the flint lithic equipment, recovered at d level, dated in the geometric Mesolithic, are released.