Physics & Astronomy
steels
100%
natural gas
89%
inventions
88%
vehicles
67%
catalysts
63%
residual stress
62%
flames
61%
histories
55%
oxidation
49%
mechanical properties
45%
products
43%
characterization
41%
poisons
32%
manufacturing
22%
engines
22%
temperature
20%
heat affected zone
19%
bainite
18%
heating
17%
microstructure
15%
martensite
13%
electron microscopes
11%
hardness
11%
industries
11%
x rays
10%
cooling
9%
stress measurement
9%
cerium
8%
high strength
7%
phosphorus
7%
sulfur
7%
infrared spectroscopy
6%
zinc
6%
temperature gradients
6%
electron microscopy
6%
photoelectron spectroscopy
6%
penetration
6%
cracks
5%
costs
5%
computer programs
5%
Engineering & Materials Science
Fatigue testing
80%
Gages
66%
Oxidation
59%
Residual stresses
59%
Natural gas
58%
Catalysts
57%
Machine components
40%
Steel
39%
Temperature
27%
Microstructure
22%
Metals
21%
Aging of materials
18%
Heat affected zone
16%
Electron microscopes
14%
Hardness
11%
Cerium
10%
Electron microscopy
9%
Engines
9%
X ray diffraction analysis
9%
Fourier transform infrared spectroscopy
9%
Gas engines
9%
Stress measurement
9%
X ray photoelectron spectroscopy
9%
Phosphorus
9%
Zinc
8%
ABAQUS
7%
Thermal gradients
7%
X ray diffraction
7%
Sulfur
7%
Hot Temperature
7%
Characterization (materials science)
6%
Oxygen
6%
Silicon
5%
Scanning
5%
Cracks
5%
Earth & Environmental Sciences
diesel
64%
catalyst
60%
natural gas
58%
vehicle
53%
oxidation
44%
poison
29%
engine
13%
gas engine
11%
electron
10%
cerium
9%
structural change
7%
electron microscopy
7%
FTIR spectroscopy
7%
X-ray spectroscopy
7%
silicon
6%
penetration
6%
zinc
6%
society
5%
sulfur
5%
phosphorus
5%
effect
5%
