论文部分内容阅读
用X-线与电子衍射方法测定Fe-Ni-Cr-W-Mo系75O°C与900℃部分相区图,得出在750℃与900℃时,当含钼量分别大于1.5％与1.0%时就可以产生μ相。在实验合金成分范围内,900℃时,当Mo含量不定,含W量>7%时就可以产生μ+Laves相,而750℃时不管W、Mo含量多少都不会产生Laves相。另外,证明传统的控制μ相生成的电子空们数Nv=2.30,不适合本系统合金。
The partial phase diagram of Fe-Ni-Cr-W-Mo at 75O ° C and 900 ℃ was measured by X-ray diffraction and electron diffraction. The results showed that when the content of molybdenum is more than 1.5% and 1.0 % Can produce μ phase. In the experimental alloy composition, when the content of Mo is not constant and the content of W is more than 7%, the phase of μ + Laves can be produced at 900 ℃, while the phase of Laves does not occur at 750 ℃ regardless of the contents of W and Mo. In addition, it is proved that the electron gap Nv generated by the traditional control μ-phase is 2.30, which is not suitable for the system alloy.