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利用能谱仪的图像处理程序研究了微量混合稀土元素添加剂对ＹＴ１４硬质合会粒度的影响。结果表明：添加剂不影响硬质相ＷＣ和粘结相Ｃｏ的粒度，但可以抑制ＹＴ类硬质合金中（Ｗ，Ｔｉ）Ｃ固溶体晶粒长大，细化晶粒，使晶粒大小均匀。
The effect of trace mixed rare earth elements on the grain size of YT14 hardcore was studied by using the image processing program of EDS. The results show that the additive does not affect the grain size of the hard phase WC and the binder phase Co, but inhibits the grain growth of (W, Ti) C solid solution in the YT hardmetal and refine the grain size to make the grain size uniform.