toughness and tensile properties of V-microalloyed steels In the last two decades, the significant market demands for microalloyed steels have led to enormous efforts as regards the op-timization of their properties. Following a national research program, the present work was scheduled to deal with a special grade of V-microalloyed steel.
Characterization and control of the compromise between A high fracture toughness is indeed needed for energy absorbing components as well as to limit edge cracking sensitivity during part forming. This study investigates the tensile properties and the fracture toughness of various quenched and partitioned microstructures. The fracture resistance is evaluated using double-edge notched tension tests.
The microstructures of the specimens were evaluated by using metallurgical microscopy, X-ray diffraction (XRD), and scanning electron microscopy. The Tukey honest significant difference test (=.05) was used to statistically analyze the 0.2% yield strength, ultimate tensile strength
Microstructures and tensile properties of friction stir The tensile properties of stir zones were substantially enhanced by FSW, and the stir zones of the 0.2C2Si3Mn (wt%) and 0.2C2Si4Mn joints exhibited the high tensile strength of approximately 1700 MPa and the high elongation of about 30%, in particular excellent local elongation of 25%.
May 04, 2010 · The room temperature tensile properties of Ti-6Al-4V alloy prepared under two different processing routes were evaluated and compared. One group of samples was prepared by conventional casting-forging-rolling into flat plates. The other group was prepared by using Tritons Laser Free-Form Fabrication (LF3) processes, i.e., a laser was used to melt pre-alloyed powders of the required
Tensile and Fracture Properties of X80 Steel Jul 25, 2013 · From the heat treated samples a matching tensile and fracture specimens were made. The strongest microstructure proved to be the finest bainitic microstructure, while the lowest strength microstructure was the coarsest bainite sample containing a significant amount of martensite-retained austenite connected along grain boundaries.(PDF) Tensile Properties and Microstructures of a 2024 The aim of this study was to investigate the effects of the cryogenic treatment (CT) using liquid nitrogen on tensile properties and microstructures of the 2024-T351 aluminum alloy.