【摘要】 随着多种粉末冶金新技术在上世纪中、后期的不断开发应用,粉末冶金高速钢、粉末冶金高温合金、粉末冶金高强度铝合金、粉末冶金纳米粉末等高性能金属材料也不断被开发和大批量生产,使粉末冶金本身成为发展高性能金属材料的一条重要和有效的途径。该文第(2)部分将重点介绍这些新材料的发展历程和开发状况,并给予简短的综合评价。更多还原

【Abstract】 With the continuous developement and application of a variety kind of powder metallurgy techniques in the mid and late of the 20th century,a lot of high quality metal materials,for example,P/M high speed steel,P/M high temperature alloy,P/M high strength aluminum alloy,P/M nanostructured powder and so on have been developed and put in batch production,leading itself to be an importent and effective method for producing high quality novel metal materials.The second part of the present paper mainly introduces the development history and status of these materials and gives out some evaluations.更多还原