Multi-principal component alloy screw tap and preparation method thereof

• Main Authors: ZHU SHIZHAO, ZHANG WENYONG, ZHAI YANZHAO, LIU RUI, MA MINGXING, LI YUTANG, WANG ZHIXIN, ZHANG ZHENGANG
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2018
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MACHINE TOOLS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; THREAD CUTTING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH

The invention discloses a multi-principal component alloy screw tap and a preparation method thereof. Metal powder is prepared according to a chemical chemical constitution, namely AlxCoCrFeyMnZrZnz,wherein x is more than or equal to 0.1 and less than or equal to 1.2, y is more than or equal to 0.1 and less than or equal to 1.2, z is more than 0 and less than or equal to 1.2, x/(x+y+z+4) is morethan 0.01 and less than 0.20, y/(x+y+z+4) is more than 0.01 and less than 0.20, and z/(x+y+z+4) is more than 0 and less than 0.20. The preparation method particularly comprises the following steps: weighing each metal powder according to the chemical formula, putting the metal powder into a ball-milling tank, adding a stainless steel ball, and sealing the ball-milling tank under the protection ofinert gas; putting the sealed ball-milling tank on a ball mill, and mixing; putting the mixed powder into a mold under the protection of inert gas, heating the mold under the protection of inert gas,and carrying out pressurizin