High-Cycle Fatigue Properties of Titanium-Clad Bimetallic Steel with Different Interfacial Conditions

Titanium-clad (TC) bimetallic steel is an advanced composite consisting of metallurgically bonded titanium alloy and structural steel. This paper compared the high-cycle fatigue properties three types TC steels, including two hot-rolled bonding with different strengths explosion-bonded type. The steels were all manufactured from TA2 as cladding metal Q355B substrate metal, which thicknesses are 2 mm 8 mm, respectively. Based on comparison results, qualitative relationship between interface strength manufacturing methods basic mechanical was obtained. It found that degree component metals resulted in nonlinear yield plateau high seems to affect failure mode tensile coupons. shear only slightly affects performance, exhibits visible effects when test strain reaches fractured state. In addition, modes total tests for significantly phenomena has a 10% improvement performance than one low strength. Despite this, ratio, while influence cycle limited. research outcomes can provide reference selection interfacial conditions use engineering.