1. Introduction. CA6NM steel (ASTM A743A743M (1998) 1) is as soft martensitic stainless steel used in several cast parts of hydraulic turbines.It is the most common metallic alloy used in the ...

Air pollution kills thousands of Brazilians every year, a number that increases as the years go by 1.The levels of pollutants observed in a large part of the country are alarming, as a result of the ...