Strain Hardening Dependence on the Structure in Dual‐Phase Steels

EFFECT OF SILICON CONTENT ON THE STRAIN HARDENING OF DUAL-PHASE STEELS

Abstract: In the current work, the strain hardening behavior of dual-phase steels with different silicon content (0.34- 2.26 Wt. %) was examined using the modified Crussard-Jaoul analysis. It was shown that these dual-phase steels deform in two stages over a uniform strain range. Each stage exhibited a different strain hardening exponent varying with silicon content. At the first stage, work...

the effects of changing roughness on the flow structure in the bends

flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Effects of Strain Hardening and Fine Structure on Strength and Toughness of Tempered Martensite in Carbon Steels

A series of medium-carbon low alloy steels was quenched to martensite and tempered at 150 C. This low-temperature-tempered (LTT) martensite was subjected to uniaxial tensile and impact testing. Yield and ultimate tensile strength and uniform elongation increased, and post uniform and total elongation and fracture toughness decreased, with increasing carbon concentration. The carbon dependence o...

Secondary Hardening in High Speed Steels

Secondary Hardening Behavior in Super Duplex Stainless Steels during LCF in Dynamic Strain Ageing Regime

Cyclic deformation behaviors in five modified duplex and 350°C. The influence of temperature and ni phenomenon, in the stress response curve was focuse dynamic strain ageing by increasing the first hardeni Furthermore, an increase in nitrogen concentration in ageing temperature range. The occurrence of strai structures. The formation of irreversible dislocation s hardening in the stress respons...