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利用显微硬度计、纳米显微力学探针和扫描电镜弯曲平台,研究了界面金属间化合物对钛钢爆炸轧制复合板界面的力学行为。研究结果表明:界面上有金属间化合物存在时,显微硬度计界面压痕可以观察到裂纹;纳米显微力学探针界面压痕也可以观察到裂纹存在,同时裂纹出现时压载曲线出现平台;原位弯曲的过程中裂纹在金属间化合物存在处萌生和扩展。钛钢爆炸轧制复合板界面上金属间化合物的形成降低结合强度,特别是Ti-Fe金属间化合物。
The mechanical behavior of interfacial intermetallics on the interface of detonation and rolling clad plate of titanium steel was studied by using microhardness tester, nano-micromechanical probe and scanning electron microscope. The results show that the presence of intermetallic compounds in the interface, the microhardness interface can be observed cracks indentation; nano-mechanical probe interface indentations can also be observed cracks exist at the same time cracks appear ballast curve platform Cracks initiate and expand in the presence of intermetallic compounds during in-situ bending. The formation of intermetallics at the interface of the detonation-rolled composite plate of titanium steel reduces the bond strength, especially Ti-Fe intermetallics.