scholarly journals High temperature mechanical deformation of an additive manufactured nickel based superalloy using small scale test methods

2018 ◽  
Vol 1 (S1) ◽  
pp. 21
Author(s):  
H. Hilal ◽  
R.J. Lancaster ◽  
S.P. Jeffs ◽  
L. Ednie ◽  
J. Boswell ◽  
...  
Keyword(s):  
High Temperature ◽  
Mechanical Deformation ◽  
Test Methods ◽  
Small Scale ◽  
Nickel Based Superalloy ◽  
Scale Test

scholarly journals New laboratory methodologies to analyse the top of rail friction modifier performance across different test scales

2020 ◽  
pp. 095440972091375
Author(s):  
M Harmon ◽  
R Lewis
Keyword(s):  
Test Methods ◽  
Relative Performance ◽  
Test Facility ◽  
Small Scale ◽  
Scaling Effects ◽  
Full Scale Test ◽  
Friction Modifiers ◽  
Friction Modifier ◽  
Test Standards ◽  
Scale Test

Test methodologies originally developed for greases have been adapted to be used for top of rail friction modifiers (TORFMs). This has included: a small-scale benchtop tribometer to measure the tackiness of different TORFMs, attaching an applicator bar to a section of rail and rolling a scaled-wheel through the TORFM applied to the rail head to analyse the effect of different variables on pick-up, and applying TORFM to a full-scale test facility to analyse the scaling effects and the effect of slip, load and speed on pick-up. These methods can be used to measure the relative performance of different TORFMs with respect to how much product is picked up by the wheel. The results have shown that the relative ranking of different TORFMs is the same across the three test scales. This shows that these small-scale test methods that are more suitable for inclusion in test standards could be used to reduce the need for the more time-consuming and expensive larger scale tests, as the relative performance is the same.

Assessment of Flame Retardant Coated Fabric Flammability by Small Scale Test Methods

1987 ◽  
Vol 17 (2) ◽  
pp. 129-134
Author(s):  
H.L. Needles ◽  
Q. Xie ◽  
C. Walker ◽  
K.W. Alger
Keyword(s):  
Flame Retardant ◽  
Test Methods ◽  
Small Scale ◽  
Coated Fabric ◽  
Scale Test

Measurement of Sound Insulation of Automotive Body Components Using Sound Intensity

1992 ◽  
Vol 206 (2) ◽  
pp. 137-141 ◽  
Author(s):  
M K Ling
Keyword(s):  
Noise Reduction ◽  
Sound Intensity ◽  
Test Methods ◽  
Standard Test ◽  
Test Facility ◽  
Sound Insulation ◽  
Small Scale ◽  
Automotive Body ◽  
Airborne Noise ◽  
Scale Test

A small-scale test facility is described which enables manufacturers to assess the sound insulation of noise reduction treatments. Designed to provide a cheap and quick alternative to standard test methods, the technique uses sound intensity to measure the insertion loss of noise reduction treatments when subjected to airborne noise.

Wet-milling of wheat flour: industrial processes and small-scale test methods

LWT ◽  
2004 ◽  
Vol 37 (5) ◽  
pp. 499-515 ◽  
Author(s):  
Abdulvahit Sayaslan
Keyword(s):  
Wheat Flour ◽  
Test Methods ◽  
Industrial Processes ◽  
Small Scale ◽  
Wet Milling ◽  
Scale Test

Study of Multiaspect and Multistatic Sonar Systems Using a Small-Scale Test Bed

2010 ◽  
Author(s):  
Jon La Follett ◽  
John Stroud ◽  
Pat Malvoso ◽  
Joseph Lopes ◽  
Raymond Lim ◽  
...  
Keyword(s):  
Small Scale ◽  
Test Bed ◽  
Sonar Systems ◽  
Scale Test

scholarly journals Aluminide Thermal Barrier Coating for High Temperature Performance of MAR 247 Nickel Based Superalloy

Coatings ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 48
Author(s):  
Mateusz Kopec ◽  
Dominik Kukla ◽  
Xin Yuan ◽  
Wojciech Rejmer ◽  
Zbigniew L. Kowalewski ◽  
...  
Keyword(s):  
High Temperature ◽  
Stress Amplitude ◽  
Aluminide Coating ◽  
Chemical Vapor ◽  
Fatigue Tests ◽  
Protective Atmosphere ◽  
X Ray ◽  
Nickel Based Superalloy ◽  
Barrier Coating ◽  
Aluminide Layer

In this paper, mechanical properties of the as-received and aluminide layer coated MAR 247 nickel based superalloy were examined through creep and fatigue tests. The aluminide layer of 20 µm was obtained through the chemical vapor deposition (CVD) process in the hydrogen protective atmosphere for 8 h at the temperature of 1040 °C and internal pressure of 150 mbar. A microstructure of the layer was characterized using the scanning electron microscopy (SEM) and X-ray Energy Dispersive Spectroscopy (EDS). It was found that aluminide coating improve the high temperature fatigue performance of MAR247 nickel based superalloy at 900 °C significantly. The coated MAR 247 nickel based superalloy was characterized by the stress amplitude response ranging from 350 MPa to 520 MPa, which is twice as large as that for the uncoated alloy.

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