Ultrasonic Non‐Destructive Characterization of Power Plant Steel

Investigation of tungsten heavy alloys using powder metallurgy technique

“…The achieved products also possess high quality and performance at a low manufacturing cost than other products of different materials families [3]. Besides, good resistant chemical and mechanical properties are obtained by different composite materials of polymer matrix [6,7]. There are two different points of view to classify composite materials.…”

“…In this investigation, a study was developed on tungsten heavy alloy WHA by adding graphene. WHAs are composite material types composed of spherical tungsten particles 90% W 7 % Ni 3 % Co [7]. This research is one of the trials investigate the effect of graphene addition to WHA, hoping to improve the mechanical characteristics.…”

“…This research is one of the trials investigate the effect of graphene addition to WHA, hoping to improve the mechanical characteristics. For Example, Zeinab et al, who developed a new process to produce tungsten heavy alloys of nano size that called reduction methodology as same as mechanical alloying approach [7]. However, a wide field of investigations can be found in the research that enhances the alloy's mechanical properties.…”

“…For example, EDMONDS and JONES studied the toughness of the two composite alloys of tungsten, nickel and iron and compare the results by tungsten, nickel and copper. They found that the value of results is depend on the cooling rate of sintering temperature, which influence the values of strength of the existence of tungsten particles in the matrix [5][6][7]. Gong et al investigated tensile, yield, and fracture strengths of three different WHAs.…”

“…Gong et al investigated tensile, yield, and fracture strengths of three different WHAs. The results showed a strong influence of temperature on these mechanical properties at high levels [7]. Besides, Neua et al studied the replacement of WHA as an alternative solution as plasma-facing material.…”