通过分析钛在熔炼中遇到的问题,并结合粉末冶金技术的特点,指出应用粉末冶金技术是未来钛产业发展的必然选择.详述了钛合金粉末冶金生产的工艺路线,该工艺生产的TC4钛合金粉末冶金件抗拉强度可达900 MPa以上,断后伸长率超过10％,综合力学性能优于GB/T 25137-2010钛及钛合金锻件标准要求.钛合金粉末冶金件还可用来进行锻造和挤压加工成形,经锻造、挤压后,力学性能可进一步提高.总之,利用粉末冶金技术进行钛合金的工业化生产具有生产设备投入成本低、可实现产品近净成形、节约原材料、产品性能高、生产周期短等优势.
By analyzing the problems encountered in the melting of titanium,combined with the characteristics of powder metallurgy technology,pointed out that the application of powder metallurgy technology was the inevitable choice of the future development of titanium industry.The technical process of powder metallurgy titanium alloy production was described in detail.The tensile strength of powder metallurgy TC4 titanium alloy reaches more than 900 MPa,elongation after fracture is more than 10％,and the comprehensive mechanical properties exceed the requirement of GB/T 25137-2010.Powder metallurgy titanium alloy can also be used for forging and extrusion forming,the mechanical properties after forging and extrusion are further improved.In short,powder metallurgy titanium alloy industrial production has significant advantages,such as low cost of production equipment,products can be achieved near net shape,saving raw materials,excellent product performance,short production cycle,etc.
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