Results 21 to 30 of about 437,120 (307)

The influence of laser hardening on wear in the valve and valve seat contact [PDF]

open access: yes, 2009
In internal combustion engines it is important to manage the wear in the valve and valve seat contact in order to minimise emissions and maximise economy.
H. Taylor   +9 more
core   +1 more source

Cast Iron And Mineral Cast Applied For Machine Tool Bed - Dynamic Behavior Analysis

open access: yesArchives of Metallurgy and Materials, 2015
Cast iron and mineral cast are the materials most often used in the machine structural elements design (bodies, housings, machine tools beds etc.). The materials significantly differ in physical and mechanical properties.
Kępczak N.   +2 more
doaj   +1 more source

Study on Microstructure and Hot Deformation Behavior of High Chromium Cast Iron/Low Carbon Steel Laminate [PDF]

open access: yesArchives of Metallurgy and Materials
A hot compression process was developed to study the hot deformation behavior and microstructure of a high chromium cast iron/low carbon steel laminate on a Gleeble 3800 thermal simulation test machine at a temperature of 950-1200℃.
G. Yuan   +5 more
doaj   +1 more source

Optimization of Master Alloy Amount and Gating System Design for Ductile Cast Iron Obtain in Lost Foam Process [PDF]

open access: yes, 2013
The paper presents the optimization of master alloy amount for the high nodular graphite yield (80-90%) in cast iron obtain in lost foam process. The influence of the gating system configuration and the shape of the reaction chamber, the degree of ...
Just P., Kaczorowski R., Pacyniak T.
core   +1 more source

Structural and Phase Analysis of the Ausferritic Ductile Cast Iron Matrix Obtained by Heat Treatment and in the Raw State

open access: yesC
This paper presents a comparative analysis of ausferritic ductile cast iron matrix obtained through heat treatment and in its raw state. Ausferrite without heat treatment was achieved by modifying the chemical composition, while nodular graphite was ...
Leszek Klimek   +4 more
doaj   +1 more source

Tribology and Airborne Particle Emission of Laser-Cladded Fe-Based Coatings versus Non-Asbestos Organic and Low-Metallic Brake Materials

open access: yesMetals, 2021
Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with ...
Yezhe Lyu   +4 more
doaj   +1 more source

Failures of the Cast-Iron Columns of Historic Buildings—Case Studies

open access: yesInfrastructures, 2020
Selected technical problems related to the rehabilitation of cast-iron columns in structures from the turn of the 19th and 20th century are discussed in the paper. Lack of contemporary standard regulations related to the design of cast-iron structures is
Michał Gołdyn, Tadeusz Urban
doaj   +1 more source

Studying properties of chrome cast irons modified with titanium carbide

open access: yesMetalurgija, 2021
The paper presents the results of studying hardness and wear resistance of chrome cast irons. In the study there were considered samples of cast iron of the ChN2H, ChN4H2 grades and ChN2H after treatment with titanium carbide.
A. Z. Issagulov   +4 more
doaj  

Hardness characterisation of grey cast iron and its tribological performance in a contact lubricated with soybean oil [PDF]

open access: yes, 2018
The effect of hardness of grey cast iron flat specimen on its wear and friction on the contact were characterised with the presence of vegetable oil as biolubricant.
Adedayo AV   +11 more
core   +1 more source

A Different Perspective on the Solid Lubrication Performance of Black Phosphorus: Friend or Foe?

open access: yesAdvanced Engineering Materials, EarlyView.
Researchers investigate black phosphorus (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli   +5 more
wiley   +1 more source

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