Dual-Phase Steels:An Introduction National Material Company - Steel Processing Facilities Dual-phase steels refer to low-alloy, low-carbon material with anywhere between 5-50 vol.% of martensite which is ingrained in a pliant ferrite matrix.
Dual-phase steels - Steel manufacturing - thyssenkruppA new class of dual-phase steels made by thyssenkrupp Steel offers around 30 percent higher elongation compared with conventional grades of this steel family. They bear the designation DH Ductility High. These materials in the strength classes 600 and 800 MPa are currently being used successfully for series production.
Data sheet dual-phase steels page 2/4 06/2019 Steel grade C max. Si max. Mn max. P max. S max. Al total Cr + Mo max. Ti + Nb max. V max. B max. Pursuant to EN 10346 and EN 10338
Effect of Nb on Microstructures and Mechanical Properties The effect of Nb addition from 0.06 to 0.18 wt.% on microstructural evolutions, mechanical properties, strain-hardening behavior, and fracture mechanism of an ultrafine-grained dual phase (UFG-DP) steel was investigated. The DP steels were cold rolled up to 80% thickness reduction followed by intercritical annealing at 770 °C for 6 min to form the UFG structures.
Fatigue properties of laser welded dual-phase steel jointsIn terms of both mechanical properties and safety standards dual-phase (DP) steels have already built a reputation in the automobile industry. The microstructure of DP steels consists of islands of
Fig. 1. Schematic drawing of undercooled austenite transformations of DP-, TRIP-, CP- and TMS-type steels thermo-mechanically processed and underhardened or isothermally quenched from a temperature slightly higher than Ac1 of the steel - "Heat treatment and mechanical properties of low-carbon steel with dual-phase microstructure"
Mechanical properties of dual phase steels Semantic ScholarJ.W. Morris R.A. Kot, editor, Structure and Properties of Dual-Phase Steels, pages 221241, New Orleans, LA, USA, February 1921 1979 Relation between hole expansion formability and metallurgical factors in dual-phase steel sheet
PAPER OPEN ACCESS A comparative study on the The spectroscopic analysis of the sample from both conventional steel and dual phase steels was prepared for testing the chemical properties of the material. The conventional steel considered was SPFH 590 grade material and this was compared against dual phase DP steel. The results of
Dual-phase (DP) steels are composed of ferrite and 520% of martensite, and their strength ranges from 500 to 1200 MPa. DP steels have a microstructure of mainly soft ferrite, with islands of hard martensite dispersed throughout. The strength level of these grades is related to the amount of martensite in the microstructure.