Metallographic and Fractographic Contributions to Understanding Environmentally Assisted Cracking

Environmentally Assisted Cracking Behavior of Low Alloy Steels in Simulated BWR Coolant Conditions

Environmentally Assisted Cracking in Silicon Nitride Barrier Films on Poly(ethylene terephthalate) Substrates.

A singular critical onset strain value has been used to characterize the strain limits of barrier films used in flexible electronics. However, such metrics do not account for time-dependent or environmentally assisted cracking, which can be critical in determining the overall reliability of these thin-film coatings. In this work, the time-dependent channel crack growth behavior of silicon nitri...

Slow Strain Rate Testing to Evaluate the Susceptibility of Welded Low Alloy Steel to Environmentally Assisted Cracking

Libya is an important oil country particularly to European countries. The combustion products of fossil fuels are causing great damage through pollution, acid rains and the greenhouse effect. Hydrogen can be stored in three different ways, as a gas, as liquid, as a material and metal hydrides. Low alloy steels have been widely used in different scale welded structures. The mechanical properties...

Understanding environmentally significant consumption.

Consumer choices can have major impacts on the environment. For example, the United States could reduce its total greenhouse gas emissions by 7% through modest policies to encourage more efficient household energy consumption (1). This “behavioral wedge” would make a substantial and low-cost contribution to climate-change mitigation (2, 3). Shifts in water and food consumption would also be env...

Cortical motor contributions to language understanding*

Here we review evidence from cognitive neuroscience for a tight relation between language and action in the brain. We focus on two types of relation between language and action. First, we investigate whether the perception of speech and speech sounds leads to activation of parts of the cortical motor system also involved in speech production. Second, we evaluate whether understanding action-rel...