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Papers
61,005 resultsShowing papers similar to The effects of oil-quenching and over-tempering heat treatments on the dry sliding wear behaviours of 25CrMo4 steel
ClearDynamic Processes of Substructural Rearrangement under Friction of Carbon Steel
This study examined how heat treatment affects the friction and wear properties of medium carbon steel, linking material microstructure to tribological performance. The research is focused on materials engineering with limited direct relevance to microplastic pollution or human health.
The Influence of Repeated Heat Treatments on The Propagation of Fatigue Cracking of Medium Carburized Steel
Researchers investigated how multiple heat treatment cycles affect fatigue crack propagation in medium carburized steel, testing models subjected to different quenching media and tempering sequences. The model that underwent double quenching in distilled water with intermediate tempering showed the best overall fatigue performance, requiring the fewest cycles to failure and displaying a clear relationship between crack propagation rate and crack length.
Effect of Cryogenic Treatments on Hardness, Fracture Toughness, and Wear Properties of Vanadis 6 Tool Steel
Researchers investigated how different cryogenic and tempering treatments affect the hardness, fracture toughness, and wear properties of Vanadis 6 tool steel. The study found that specific cryogenic treatment protocols can significantly improve the mechanical performance and durability of the steel. While not directly related to microplastics, the findings are relevant to developing longer-lasting industrial tools that generate less wear debris.
Modification of Frictional Surfaces of Bearings by Addition of Nanoparticle Compositions to Lubricants
Researchers studied the effects of nanoparticle additive compositions in lubricating oils on changes to the frictional surface structure and tribological characteristics of a steel-to-steel friction pair, using scanning electron microscopy to analyze surfaces after step-loading fatigue tests.
Effects of Pulsed Magnetic Fields of Different Intensities on Dislocation Density, Residual Stress, and Hardness of Cr4Mo4V Steel
This paper studied how pulsed magnetic fields affect the internal stress and hardness of a bearing steel alloy. While unrelated to microplastics, research on material durability is relevant to reducing wear-generated particles from industrial machinery, which can contribute to microplastic and metal particle pollution.
Pengaruh Media Pendingin terhadap Kekerasan dan Struktur Mikro Hasil Pengelasan SMAW Pegas Daun Mitsubishi PS 120
Researchers examined the effects of different cooling media on the hardness and microstructure of shielded metal arc welded (SMAW) Mitsubishi leaf spring steel, comparing outcomes across water, oil, and air cooling conditions. The study identifies the optimal cooling method to achieve target hardness and microstructural properties for leaf spring applications in heavy-load vehicles.
Numerische und experimentelle Untersuchung zerspanungsbedingter Gefügeumwandlungen und Modellierung des thermo-mechanischen Lastkollektivs beim Bohren von 42CrMo4
This German engineering thesis used numerical simulation and experimental methods to study how the drilling process transforms the microstructure of 42CrMo4 steel near the machined surface. This is a manufacturing engineering study with no relevance to microplastic pollution or environmental health.
Shot Peening Effects on Subsurface Layer Properties and Fatigue Performance of Case‐Hardened 18CrNiMo7‐6 Steel
This engineering study examined how different shot peening treatments affect subsurface material properties and fatigue performance in case-hardened steel. It is a materials engineering paper with no connection to microplastics or environmental health.
Features of Increasing the Wear Resistance of Machine Parts by Treatment with a Concentrated Heat Flow
Researchers investigated how heating metal surfaces with concentrated energy can improve wear resistance of machine parts. While focused on metals, improved material durability is broadly relevant to designing longer-lasting products that generate less plastic waste.
Material Response to Rolling Contact Loading
This materials science study investigates how rolling contact in ball bearings causes microplastic deformation in steel, leading to crystallographic texture changes, residual stresses, and eventual fatigue failure. The term 'microplastic' in this paper refers to small-scale plastic deformation in metals and has no connection to environmental plastic pollution.
Tribo-driven evolution of specific nano-heterostructures to achieve exceptional wear resistance in composites
This materials science study investigated wear behavior in a NiAlTa/cBN composite produced by spark plasma sintering, finding that tribologically driven formation of specific nano-heterostructures in the wear surface produced an extremely low wear rate and reduced friction coefficient.
New Methodology to Evaluate the Rolling Contact Fatigue Performance of Bearing Steels With Surface Dents: Application to 32CrMoV13 (Nitrided) and M50 Steels
This engineering study developed a method to evaluate how surface dents affect rolling contact fatigue in bearing steels, using indentation testing and two-disk fatigue experiments to compare different steel alloys. This is an industrial engineering study with no relevance to environmental microplastics.
Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation
Not relevant to microplastics research; this paper investigates how carbide size and spacing in tool steel microstructures affects fatigue crack growth rate, with no connection to plastic pollution.