【摘要】 初步探讨了钛／钢爆炸复合界面层内钛侧所产生的绝热剪切带（ａｄｉａｂａｔｉｃｓｈｅａｒｂａｎｄ）在热处理及各种准静态加载（如拉伸、压缩、疲劳等）后其内部组织和力学性能等冶金行为的变化情况，为绝热剪切敏感材料的工程应用提供实验依据和理论指导。试验结果表明，经热处理及拉伸、压缩等准静态加载后ＡＳＢ内的显微硬度值都高于其钛基体的显微硬度值；经５５０℃，３０ｍｉｎ退火后（低于纯钛的再结晶温度），ＡＳＢ内已形成等轴再结晶组织，经６２５℃，３０ｍｉｎ退火后，ＡＳＢ消失；由于ＡＳＢ的附近钛基体在组织和性能上的差异，ＡＳＢ内及ＡＳＢ与基体交界处是疲劳载荷下二次裂纹容易萌生的地方。更多还原

【Abstract】 The microstructures of an adiabatic shear band (ASB) on the pure titanium side in a titanium/mild steel explosive cladding interface have been investigated by means of OM and SEM The changes of the ASB shape, the microstructure and mechanical properties (microhardness) of the ASB after annealing and under all kinds of quasi-static-state loading (i g tensile, compress and fatigue etc ) are discussed Some experimental data are provided for the commercial uses of the adiabatic-shearing sensitiving materials It has been shown that the microhardness values of ASB are higher than that of the matrix after annealing and various quasi-static loadings Recrystalized equiaxial grains were produced after annealing at 550℃ for 30min (below the recrystalization temperature of pure Ti), and ASB disappeared after annealing at 625℃ for 30min The second microcracks seem easily to be produced inside ASB and at the interface between ASB and Ti-matrix under fatigue loading due to the difference of microstructure and properties between ASB and the Ti-matrix更多还原