Molecular dynamics simulation of the deposition process of cold sprayed Fe0.5CrMnAlCu mixed metal coating
The molecular dynamics method was used to simulate the minimum deposition temperature of different metal powders in the process of low pressure cold spraying.The calculation results showed that Mn particles can be effectively deposited at 600 K,Fe particles need a spraying temperature of 700 K and above,and Cr particles need 1 100 K and above to be deposited effectively.Al and Cu particles can be ef-fectively deposited in the temperature range of 500～800 K,and the maximum flattening rate of the two particles exceeds 0.6.When the powders of different metal elements are mixed and deposited at 700 K,due to the interaction and tamping effect of different powder particles during the deposition process,even if the Cr particles do not reach the deposition conditions,the Cr particles are also deposited in the coating like other element particles.
mixed metal coatingcold sprayingmolecular dynamics
万方数据
