Biomedical materials is an important branch of material science, and is used in the diagnosis, treatment or replace the body's tissues and organs or improve its function, high technology content and high economic value of new carrier materials, is a in materials science and technology is developing a new field.Biomedical materials to explore the mysteries of human life, safeguard human health and longevity to make greater contribution.      Nearly 10 years, biomedical materials and products market growth rate remained at 20% to 20%, over the next 10 years to 15 years, including biomedical materials, medical equipment industry will achieve pharmaceutical products market scale, become the pillar industry of the world economy in the 21st century.      In biomedical metal materials, titanium and its alloy with excellent comprehensive performance, become artificial joints (hip, knee, shoulder, ankle, elbow, wrist, knuckles, etc.), bone trauma products (nails, steel plates, screws, etc.) and orthopaedic spine internal fixation system, braces, tooth orthopaedic silk, dental implants, artificial heart valve, interventional cardiovascular stents and other medicinal plant products in the material of choice.Currently, there is no better than titanium metal materials used for clinical purposes.In developed countries and the world famous implant product suppliers are attaches great importance to the research and development of titanium alloy, launched a series of new medical titanium alloy material, including bionic bioactive titanium alloy material, surface treatment in the medical titanium alloy material has also done a lot of design and development of proprietary, giving medical titanium alloy material better biological activity to meet the body's physiological needs, so as to achieve the purpose of make the patients recover at an early date.      The world's population of nearly 6.5 billion, according to incomplete statistics, nearly 400 million, the disabled limb disabled people, 60 million dental patients with 2 billion, the biological material device implantation of only 35 million people, each year about 1.5 million cases, joint replacement quantity and the amount of actual need replacement is far.Therefore, biomedical materials have great potential market demand.And as first choice of biomedical metal materials, titanium and its alloys demand will also be increased, so it is imperative to strengthen medical titanium alloy material research and development