Results 31 to 40 of about 143,077 (312)

Effect of weld metal composition on impact toughness properties of shielded metal arc welded ultra-high hard armor steel joints

open access: yesJournal of the Mechanical Behavior of Materials, 2020
Nowadays, ultra-high hard armor (UHA) steels are employed in armor tracked vehicle (ATV) construction because of their high hardness, high strength to weight ratio, and excellent toughness.
Balaguru V.   +2 more
doaj   +1 more source

Impact modification of poly(caprolactam) by copolymerization with a low molecular weight polybutadiene [PDF]

open access: yes, 1988
Caprolactam and a reactive, low molecular weight polybutadiene were polymerized in an autoclave, followed by post-condensation in the solid state. The rubber concentration was varied (0–30 wt%).
Borggreve, R.J.M., Gaymans, R.J.
core   +4 more sources

Vpliv podhlajevanja na lomno žilavost martenzitnega nerjavečega jekla AISI 420 [PDF]

open access: yes, 2017
Cryogenic treatments have been employed over the last three decades in both tool and high-alloy steels to improve wear resistance, mainly through the transformation of retained austenite and the precipitation of fine carbides.
Perez Ipiña, Juan Elias   +2 more
core   +1 more source

Evaluation of Toughness of High Strength Low Alloy (HSLA) Steels as a Function of Carbon Content [PDF]

open access: yes, 2019
The influence of carbon content on the microstructure and toughness of HSLA steel at room temperature was investigated based on experimental work and literature.
Naher, S., Qaban, A.
core  

Influence of boron content on the fracture toughness and fatigue crack propagation kinetics of bainitic steels [PDF]

open access: yes, 2016
The relatively good combination of high strength and ductility makes bainitic steels a candidate to replace many other steels in industrial applications. However, in service, ductility and strength are not up to standard requirements.
Cabrera Marrero, José M.   +4 more
core   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Influence of carbon content on microstructure and mechanical properties of Mn13Cr2 and Mn18Cr2 cast steels [PDF]

open access: yesChina Foundry, 2014
In this paper, a comparison study was carried out to investigate the influence of carbon content on the microstructure, hardness, and impact toughness of water-quenched Mn13Cr2 and Mn18Cr2 cast steels.
Lu Dingshan, Liu Zhongyi, Li Wei
doaj  

The effect of temperature changes on to quasi-static tensile and flexural performance of glass fibre reinforced PA66 composites [PDF]

open access: yes, 2013
A significant method of reducing CO2 emissions in road vehicles is to reduce the vehicle mass. One means in which this can be achieved is to adopt lightweight materials such as thermoplastic composites.
Abhyankar, Hrushikesh   +5 more
core  

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick   +19 more
wiley   +1 more source

Investigation of improving wear performance of hypereutectic 15%Cr-2%Mo white irons [PDF]

open access: yesChina Foundry, 2010
This study aimed at optimizing impact toughness and abrasion wear resistance of 15%Cr-2%Mo hypereutectic abrasion-resistant white irons. The effects of dynamic solidification, niobium addition, combined action of them and heat treatment have been ...
R. Reda, A. Nofal, Kh. Ibrahim
doaj  

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