Results 61 to 70 of about 125,587 (313)

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

LABORATORY SYSTEM FOR INVESTIGATION OF FATIGUE DEGRADATION IN FERROMAGNETIC MATERIALS AND EXAMPLES OF ITS IMPLEMENTATION

open access: yesПриборы и методы измерений, 2015
Shows the block diagram of the laboratory system for investigation of fatigue degradation in ferromagnetic materials by method of magnetic noise. Describes the principle operation of the system, given the practical results its using in assessment of the ...
V. N. Busko, D. A. Vintov
doaj  

Effects of Shaft Misalignment on the Stresses Distribution on teeth of Spur Gears [PDF]

open access: yesPort Said Engineering Research Journal, 2014
Shaft misalignment is a common problem in most rotating machines. It leads to generate vibration and extra dynamic loading on power transmitting elements, such as gears.
Anwar Kandil   +2 more
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

On composite shell models with a piecewise linear warping function [PDF]

open access: yes, 2003
A multilayered shell model accounting for a piecewise linear (i.e. zig-zag) distribution of displacements through the laminate thickness is discussed.
Brank, Boštjan
core  

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

Safety Evaluation Method for Casing Running in Deep Shale Gas Horizontal Wells

open access: yesShiyou jixie
To address issues such as passability and pre-fracturing casing deformation during casing running operation in deep shale gas wells, the beam-column infinitesimal method was used to build a mechanical model for trajectory of casing running in crooked ...
Zeng Bo   +6 more
doaj   +3 more sources

Bending Fretting Fatigue Characteristics of 18CrNiMo7-6 Alloy Steel

open access: yesCailiao gongcheng, 2017
A series of bending fretting fatigue tests of 18CrNiMo7-6 alloy steel were carried out, the bending fretting fatigue S-N curve was built up, and an analysis was made on the test results.
SHEN Yan-tuan   +5 more
doaj   +1 more source

Bending Collapse Of Rectangular Section Tubes In Relation To The Bus Roll Over Problem [PDF]

open access: yes, 1979
The thesis is concerned with the theoretical determination of the overall and local effects on the collapse behaviour of bus structures in a roll over situation.
Kecman, Dušan
core  

Stress concentration factors of multi-planar tubular XT-joints subjected to out-of-plane bending moments

open access: yes, 2020
The majority of tubular joints commonly found in offshore jacket structures are multi-planar. Investigating the effect of loaded out-of-plane braces on the values of the stress concentration factor (SCF) in offshore tubular joints has been the objective ...
Kouhi, Ahmad   +3 more
core   +1 more source

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