While the coating deposited by plasma spraying cracked and spalled primarily after endured 3 times thermal shock,which showed that HVOF coating had the excellent resistance ability to thermal shock.

• 而等离子喷涂的WC涂层经过3次热震试验后就基本开裂和脱落。这充分说明了HVOF涂层具有非常高的抗热疲劳性能。