Results 41 to 50 of about 2,347 (301)

Residual Stresses in Machining of AISI 52100 Steel under Dry and Cryogenic Conditions: A Brief Summary [PDF]

, 2014
17th Conference on Material Forming (ESAFORM) - FinlandResidual stress is one of the most important surface integrity parameter that can significantly affect the service performance of a mechanical component, such as: contact fatigue, corrosion ...
OUTEIRO, José, BATISTA, A.C., BATISTA, Antonio, UMBRELLO, Domenico, CARUSO, SERAFINO, MARTINS DO OUTEIRO, Jose Carlos   +5 more
core  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Cryogenic and conventional milling of AZ91 magnesium alloy

Journal of Magnesium and Alloys
Use of magnesium is the need of the hour due to its low density as well as its high strength-to-weight and stiffness-to-weight ratio etc. This study focuses on the effectiveness of liquid nitrogen (LN2) assisted cryogenic machining on the surface ...
Vikas Marakini, Srinivasa Pai P, Gururaj Bolar, Bhaskara P Achar   +3 more
doaj   +1 more source

Experimental studies on drilling in cryogenic conditions the industrial plastic parts

MATEC Web of Conferences, 2017
Starting from an identified industrial need, therefore to process plastics in certain accuracy classes with machining time as low as possible, we studies performed in the field of plastic processing in cryogenic conditions.
Ravai-Nagy Sandor, Lobonțiu Mircea, Medan Nicolae, Szigeti Ferenc   +3 more
doaj   +1 more source

Performance of Liquid Nitrogen (LN2) on Machining Pure Titanium (Grade 2): A Comparative Study [PDF]

MATEC Web of Conferences
The biggest challenge for manufacturing industries is machining super alloys due to their properties. Titanium grade 2 also comes under the category of difficult cut material.
Chintalapudi Ravikiran, Burri Srinivasa Reddy, Murugesen Pradeep Kumar, M Ganesh, G Vidya   +4 more
doaj   +1 more source

Tribological Behavior of PVD Hard Coated Cutting Tools under Cryogenic Cooling Conditions [PDF]

, 2017
Cryogenic assistance is used to improve machining performance and to enhance tool life under extreme contact conditions (pressure and temperature). This paper focuses on the influence of cryogenic cooling conditions using liquid nitrogen within the ...
YOUSFI, Mohamed, C. Nouveau, OUTEIRO, José, B. Zouhair, M. Yousfi, ZOUHAIR, Badr, NOUVEAU, Corinne, YOUSFI, Mohammed, B. Marcon, MARCON, Bertrand, MARTINS DO OUTEIRO, Jose Carlos, J.C. Outeiro   +11 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Sustainable cooling/lubrication induced thermo-mechanical effects on ultrasonic vibration helical milling of CFRP/Ti–6Al–4V stacks

International Journal of Lightweight Materials and Manufacture, 2023
Sustainable cooling/lubrication strategies including dry, minimum quantity lubrication (MQL), cryogenic (LN2) and hybrid (MQL and LN2) were used in ultrasonic vibration helical milling (UVHM) machining to improve the performance of hole-making for CFRP ...
Jiale Wang, Jiaying Ge, Guang Chen, Jian Liu, Zhiyi Wang, Chengzu Ren   +5 more
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Cryogenic machining of the aeronautic alloy: Inconel 718

, 2021
Nickel-based alloys are widely used in the manufacture of aerospace engine components due to their excellent high-temperature thermo-mechanical properties and good corrosion resistance. However, machining these materials poses a number of challenges, mainly because they maintain their properties at high temperatures. Additional difficulties result from
openaire   +4 more sources