Results 61 to 70 of about 40,760 (208)

Mechanism study of brittle-to-ductile transition temperature in W-0.2 wt% Al2O3 alloy

open access: yesJournal of Materials Research and Technology
W-0.2 wt% Al2O3 alloy plates were fabricated using composite powders prepared by the wet chemical method, followed by cold isostatic pressing, vacuum sintering, and hot-rolling.
Ziwen Zhao   +9 more
doaj   +1 more source

Indentation plasticity and fracture in silicon [PDF]

open access: yes
Measurements of the ductile-brittle transition temperature of heavily doped silicon were carried out using indentation techniques. Diamond pyramid hardness tests were performed on the (100) face of heavily doped N-type and P-type and intrinsic silicon ...
Pirouz, P., Rybicki, George C.
core   +1 more source

The Interpretation of Experimental Observation Data for the Development of Mechanisms based Creep Damage Constitutive Equations for High Chromium Steel [PDF]

open access: yes, 2015
It is very important to design a safe factor or estimating the remain lifetime for electric power plant components of steam pipes which mostly manufacture by high chromium steels and work at high temperature and low stress level.
Lu, Zhongyu, Xu, Qiang, Yang, Xin
core   +1 more source

Effect of the viscosity ratio on the PLA/PA10.10 bioblends morphology and mechanical properties [PDF]

open access: yes, 2018
PLA bio-blends with a predominantly biosourced PA10.10 in the composition range 10-50wt.% were prepared by melt blending in order to overcome the advanced brittleness of PLA.
Abt, Tobias Martin   +6 more
core   +2 more sources

A simplified ductile-brittle transition temperature tester [PDF]

open access: yes
The construction and operation of a versatile, simplified bend tester is described. The tester is usable at temperatures from - 192 to 650 C in air. Features of the tester include a single test chamber for cryogenic or elevated temperatures, specimen ...
Arias, A.
core   +1 more source

Compression Stress Effect on Dislocations Movement and Crack propagation in Cubic Crystal [PDF]

open access: yes, 2011
Fracture material is seriously problem in daily life, and it has connection with mechanical properties itself. The mechanical properties is belief depend on dislocation movement and crack propagation in the crystal.
Aprilia, Ely, Suprijadi, Yusfi, Meiqorry
core   +2 more sources

Normal fault earthquakes or graviquakes [PDF]

open access: yes, 2015
Earthquakes are dissipation of energy throughout elastic waves. Canonically is the elastic energy accumulated during the interseismic period. However, in crustal extensional settings, gravity is the main energy source for hangingwall fault collapsing ...
Carminati, Eugenio Ambrogio Maria   +3 more
core   +1 more source

Ductile-Brittle Transition Temperature testing of tungsten using the three-point bend test [PDF]

open access: yes, 1991
Three-point bend tests were performed to determine the Ductile-Brittle Transition Temperatures (DBTTs) of forged and chemical vapor deposition (CVD) tungsten. Testing was performed under quasi-static conditions at temperatures between 23{degrees}C and 450{degrees}C using a forced-air environmental chamber.
Lassila, D.H., Magness, F., Freeman, D.
openaire   +2 more sources

Application of Surface-Cracking Process to Improve Impact Toughness of High-Strength BCC Steel at Low Temperatures

open access: yesCrystals
At very low temperatures, typically ductile materials, especially body-centered cubic (BCC) steels, often exhibit an abrupt transition to brittle fracture, significantly limiting their applicability in cryogenic and low-temperature environments.
Minha Park   +6 more
doaj   +1 more source

On the exceptional damage-tolerance of gradient metallic materials [PDF]

open access: yes, 2020
An experimental study is described on the fracture toughness and micro-mechanisms associated with the initiation and propagation of cracks in metallic nickel containing marked gradients in grain size, ranging from ∼30 nm to ∼4 μm.
Cao, R   +6 more
core  

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