Results 71 to 80 of about 808 (186)

MoDTC Tribochemistry in Steel/Steel and Steel/Diamond-Like-Carbon Systems Lubricated With Model Lubricants and Fully Formulated Engine Oils

, 2019
This work focuses on the tribochemistry of molybdenum dithiocarbamate (MoDTC) oil additive to improve friction behavior of diamond-like-carbon (DLC) coated systems lubricated in boundary regime.
Espejo, C, Morina, A, Thiebaut, B, Neville, A, Wang, C, Jarnias, F   +5 more
core   +1 more source

Interplay between microstructural evolution and tribo-chemistry during dry sliding of metals

Friction, 2019
Understanding the microstructural and tribo-chemical processes during tribological loading is of utmost importance to further improve the tribological behavior of metals.
Philipp G. Grützmacher, Sebastian Rammacher, Dominic Rathmann, Christian Motz, Frank Mücklich, Sebastian Suarez   +5 more
doaj   +1 more source

Tribochemistry of phosphorus additives: Experiments and first-principles calculations [PDF]

, 2015
Organophosphorus compounds are common additives included in liquid lubricants for many applications, in particular automotive applications. Typically, organic phosphites function as friction-modifiers whereas phosphates as anti-wear additives.
Bouffet, A., Mambingo Doumbe, S., Martin, J. M., De Barros Bouchet, M. I, Philippon, D., Le Mogne, T., RIGHI, Maria Clelia   +6 more
core   +1 more source

Redefining Lubrication Sustainability: Surface Modification and Coating-Driven Green Tribology Pathways

Lubricants
Tribology is a growing field concerning reductions in the environmental footprint of tribological systems while increasing their operational efficiency by minimizing friction, wear and lubrication in an environmentally conscious manner.
Varatharajulu Muthukrishnan, Muthukannan Duraiselvam   +1 more
doaj   +1 more source

Stress-augmented thermal activation: Tribology feels the force

Friction, 2018
In stress-augmented thermal activation, the activation energy barrier that controls the rate of atomic and molecular processes is reduced by the application of stress, with the result that the rate of these processes increases exponentially with applied ...
Hugh Spikes
doaj   +1 more source

Mechanical and physico-chemical study of sulphur additives effect in milling of high strength steel [PDF]

, 2012
The authors would like to express their appreciation to the TOTAL France Company for the technical and financial contribution to this study and to Béatrice Vacher for TEM images.Most machining operations require the presence of a cutting fluid in order ...
GENET, Nicole, LE MOGNE, Thierry, MINFRAY, Clotilde, Guillaume Fromentin, Jean-Michel Martin, FROMENTIN, Guillaume, Clotilde Minfray, Thierry Le Mogne, Nicole Genet, MARTIN, Jean-Michel, Aleksandra Bierla, BIERLA, Aleksandra   +11 more
core   +1 more source

Inovação para a sustentabilidade

Química Nova, 2013
The transition to sustainable standards of production and consumption within a scenario of decreased availability of natural resources, growing population and climate change is essential to meet current challenges facing mankind. A strategy to meet these
Fernando Galembeck
doaj   +1 more source

Wear Characteristics and Tribofilm Formation Behavior of Carburized Hardened Steel Coated with Manganese Phosphate

Tribology Online
This study investigates the MnPh surface treatment applied to improve the tribological properties of steel and rolling fatigue life of gears, focusing on the wear behavior and tribofilm formation during the initial sliding stage. The MnPh-coated layer is
Ayumu Nagahashi, Masabumi Masuko, Keiji Matsumoto, Yukio Tamura, Hiroshi Yamamoto, Masao Kikuchi, Shinji Tanaka   +6 more
doaj   +1 more source

An investigation of abrasive wear and corrosion behavior of surface repair of gray cast iron by SMAW

Journal of Materials Research and Technology, 2017
In this work, improving the abrasion–corrosion behavior of gray cast iron used in centrifugal pumps was studied. These pumps are usually made of gray cast iron (BS:1452Gr220) and are repaired by Shielded Metal Arc Welding (SMAW).
Alireza Sadeghi, Ahmad Moloodi, Masoud Golestanipour, Meysam Mahdavi Shahri   +3 more
doaj   +1 more source

Molecular dynamics simulations addressing atomic-scale core issues in chemical mechanical polishing and post-CMP cleaning: A concise review

Friction
Chemical mechanical polishing (CMP) and post-CMP cleaning are critical steps in the current semiconductor manufacturing process. These processes require ensuring atomic-scale flatness and complete removal of contaminants.
Lifei Zhang, Ming Ji, Xinchun Lu
doaj   +1 more source