One of the most important properties microalloyed steels is different microstructures which are obtained by changing thermomechanical processing parameters and steel composition. The control microstructure such as grain size, precipitates, dislocation structure inclusions highly effective to determine mechanical steels. strengthening can be done processesing due increase nucleation sides via ma...

Extensive spatial and temporal surveys, over 15 years, have been conducted in soil in urban parks and street dusts in one of the most polluted cities in western Europe, Avilés (NW Spain). The first survey was carried out in 1996, and since then monitoring has been undertaken every five years. Whilst the sampling site is a relatively small town, industrial activities (mainly the steel industry a...

When significant resistance to loading under static, fatigue and creep conditions is required, the superalloys have emerged as the materials of choice for high temperature applications. This is particularly true when operating temperatures are beyond about 800C. This is the case for gas turbines used for (i) jet propulsion, e.g. the 100,000 lb thrust engines used for powering large two-engined ...