采用循环水淬和脉冲激光冲击法并结合有限元计算考察和分析了用超高压梯度烧结方法制备的W/Cu FGM的抗热震性能.结果表明,W/Cu FGM经受50次800℃～25℃水淬冲击和100 MW/m2以上的激光循环冲击,没有出现界面破坏现象;但随着热冲击次数及冲击能量密度的增加,金属W表面产生了裂纹、晶间断裂以及出现液相及蒸发现象.与非梯度材料相比,W/Cu FGM有优异的抗热冲击性能,大致可以经受100 MW/m2 350次以上的激光循环冲击.
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