Dynamic tensile behavior of multi phase high yield strength steel

Strain rate behaviour of multi-phase and complex-phase steels for automotive applications

“…The stress-strain curves of different strain rates at room temperature are compared and the measured experimental results are presented in [5,6]. Here, the quasi-static tests at high temperature (200…”

“…[5,6]. The microstructure of MP800HY consists of mainly ferrite matrix and granular bainite, whereas, the microstructure of CP800 contains small amounts of martensite, retained austenite and pearlite within the ferrite -bainite matrix where, Nital (HNO 3 + CH 3 OH) is used as the etching reagent.…”

“…These are used in automobile industries for high yield strength values especially in crash relevant parts such as side impact protection and bumpers, and also in structural parts including reinforcements or cross members. Singh et al [5,6] studied the mechanical behavior of these steels at strain rates 0.001 s −1 to 750 s −1 under tensile loads. The authors' previous work is extended here to study the thermal softening behavior of the materials at quasi-static condition (0.001 s −1 ).…”

“…The medium (5 s −1 and 25 s −1 ) and high strain rates (250 s −1 , 500 s −1 and 750 s −1 ) experiments are conducted on hydro-pneumatic machine (HPM) and modified Hopkinson bar (MHB) setup respectively. The descriptions of the used experimental techniques are discussed in authors' previous work [5,6].…”

Strain Rate Effect on Tensile Behavior for a High Specific Strength Steel: From Quasi-Static to Intermediate Strain Rates

“…It is widely accepted that the plastic flow behaviors and the corresponding deformation mechanisms are highly dependent on the loading rate for metals and alloys [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. It is also well known that the observed resistance to plastic deformation is a rate-controlling process and can be affected by the strain rate [23][24][25]27,28].…”