COMBUSTION REACTION OF Ni_(20)Ti_(50)C_(30) DURING MECHANICAL ALLOYING
Ni20Ti50C30机械合金化过程中的爆炸反应

The combustion reaction was observed during mechanical alloying Ni_(20)Ti_(50)C_(30), and the agglomerates and powders coexisted in final product. With the analysis of X-ray diffraction (XRD) and the observation of scanning electron microscope (SEM), it is indicated that melting occurred in the combustion reaction. The product is composed of TiC phase and NiTi compound. It is regarded that the initial TiC is produced by the heavy collision of balls during milling, and then the large heat released from the TiC formation induces the latter reactions.