对Ｎｉ_（５０）Ａｌ_（３０）Ｆｅ_（２０）金属间化合物合金进行１～４ＧＰａ高压处理，发现随着处理压强增高，塑性应变量下降，由于在高压处理条件下样品滑移变形受周围叶蜡石挤压而受到抑制，微裂纹在晶内形核，测试时裂纹容易连通提前产生断裂，其断裂方向由铸态时与压缩轴成４５°，逐渐转变为在高压处理时断面与压缩轴垂直。 The Ni_ (50) Al_ (30) Fe_ (20) intermetallic compound alloys were subjected to high pressure of 1 ~ 4GPa and found that as the processing pressure increased, the amount of plastic strain decreased. As the sample sliding deformation under high pressure treatment was affected by the surrounding leaf wax The cracks are squeezed and suppressed, and the micro-cracks nucleate in the crystal. When the test is conducted, the cracks are easy to be connected and fracture occurs in advance. The fracture direction changes from 45 ° to the compression axis in the as-cast state and gradually changes to the cross section perpendicular to the compression axis .