The proportion of W-W and W-M interface detaching on the fracture surface increases as the addition of Y2O3, resulting in the decrease of static tensile strength and elongation.

• Y2O3粒子降低了钨-钨、钨-黏结相界面结合强度，随着Y2O3质量分数的增加，钨合金静态抗拉强度和延伸率降低；