The present investigation deals with study of thermoelastic damping and frequency shift of Kirchhoff plate resonators by using generalized thermoelasticity theory of dual-phase-lag model. The basic equations of motion and heat conduction equation are written with the help of Kirchhoff-Love plate theory and dual phase lag model. The analytical expressions for thermoelastic damping and frequency ...

The possibility to obtain multiphase steels with considerable fractions of retained austenite, which is of key interest for the occurrence of the TRIP effect, is investigated in steels with low amounts of Si and Al. Special emphasis is dedicated to the microstructural observation of this phase, since its volume fraction, distribution and stability, related to the carbon content, will determine ...

Although high carbon martensitic steels are well known for their industrial utility in high abrasion and extreme operating environments, due to their hardness and strength, the compressive stability of their retained austenite, and the implications for the steels' performance and potential uses, is not well understood. This article describes the first investigation at both the macro and nano sc...

Dual phase (DP) steels have high strength, while maintaining outstanding elongation capacities. This is possible using a well-controlled thermomechanical process that produces perfect combination in the DP microstructures. However, automotive makers are required to weld steels, which generates soft zone microstructure. In this work, 1.6 mm-thick DP980 steel sheets were welded by gas metal arc w...

Abstract This paper presents the microstructural changes and mechanical properties of carbide-free bainitic steel subjected to various heat treatment processes compares these results with similarly treated ferritic–pearlitic steel. A key feature investigated steel, which is common among others described in literature, that Si content developed was >1 wt.% avoid carbide precipitation retained...