电场活化烧结技术 (ＦＡＳＴ)在烧结时要施加电场。它有许多优点 :经场活化烧结后 ,显微结构可以细化 ,并提高钢的淬透性。在粉末烧结中 ,施加电场可固结难以烧结的粉末 ,比传统烧结温度低 ,时间短 ,但烧结制品密度高 ,质量好且生产率高。它是通过施加断续的低电压 (～ 30Ｖ)高 Electric field activated sintering (FAST) electric field is applied during sintering. It has many advantages: After the field activated sintering, the microstructure can be refined, and improve the hardenability of the steel. In powder sintering, an electric field is applied to consolidate hard-to-sinter powders, which is lower in temperature and shorter in time than conventional sintering, but which has high density, good quality and high productivity. It is applied intermittently by low voltage (~ 30V) high