Fire and explosion of magnesium dust are both major obstacles for the development of magnesium powder industry. Using inerting techniques to prevent and mitigate magnesium dust explosions have attracted more interesting in the world for the time being. For four kinds of spherical magnesium powder with different diameters, which are widely used in industry, experimental and theoretical study was systematically conducted on the ignition & explosion parameters and their effecting factors in different inerting ...