The four powder-making methods are Hydrogenation dehydrogenation(HDH) method, Plasma rotary electrode arc atomization process(PREP) method, Dynamic hydrogenation dehydrogenation(DHDH) method and Gas atomization process (GA) method.

• 方法:选取氢化脱氢(HDH)法、动态氢化脱氢(DHDH) 法、等离子旋转电极雾化(PREP) 法及气雾化(GA)法制备的钛粉末,采用激光立体成形装备,分别在相同的工艺参数下进行粉末的单层单道熔覆试验,计算四种粉末的粉末利用率;