ホットプレスによる鉄圧粉体-非鉄金属圧粉体間の相互拡散

概要

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Interdiffusion in iron compact and nickel, cobalt, chromium, molybdenum or tungsten compact system under hot-pressing has been investigated and the results obtained are as follows. Width of diffusion band between the compacts increases as hot-pressing temperature increases in any system. The systems can be classified into the following two groups based on the rate of width-increase. One is the iron-nickel and the iron-cobalt systems in which the width of diffusion band is large under hot-pressing at 1000°C-1200°C, but small under hot-pressing at 1300°C-1400°C as compared with other systems. The other is the iron-chromium, the iron-molybdenum and the iron-tungsten systems in which the width of diffusion band is small under hot-pressing at 1200°C, but remarkably large under hot-pressing temperature at 1300°C-1400°C because intermetallic compounds generate as diffusion proceeds.
社団法人粉体粉末冶金協会の論文