Results 271 to 280 of about 30,687 (310)

Yield behaviour of dual-phase steel

Scripta Metallurgica, 1989
Analyse des courbes experimentales obtenues a partir d'essais de traction sur l'acier dual phase a 11 ...
B. Grushko, B-Z. Weiss
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Microanalysis of dual phase steels

Scripta Metallurgica, 1984
Comparaison des profils de concentration de Mn prevus par un modele d'equilibre local avec ceux trouves par analyse RX a dispersion d'energie (EDAX) et par microscopie electronique a transmission par balayage (STEM)
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Dual-Phase Steels

2013
Abstract Dual-phase (DP) steels have the widest usage in automotive industry because of their excellent combination of strength and ductility. This chapter provides an overview of the composition, microstructure, processing, deformation mechanism, mechanical properties, formability, and special attributes of DP steels.
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Plastic anisotropy of dual-phase steels

International Journal of Plasticity, 1990
Abstract A continuum mechanics model on yielding and plastic deformation of dual-phase steels consisting of a large number of spherical second-phase islands dispersed in a matrix has been developed. The model is based on the Hill's theory on orthogonal anisotropy and the mean internal stress arising from the differences in strengths and plastic ...
T. Sakaki, K. Ohnuma, K. Sugimoto, Y. Ohtakara   +3 more
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Dual-Phase Steels

1990
Abstract Dual-phase steels are a new class of high-strength low alloy (HSLA) steels characterized by a microstructure consisting of about 20% hard martensite particles dispersed in a soft ductile ferrite matrix. In addition to high tensile strength, in the range of 550 MPa (80 ksi), dual-phase steels exhibit continuous yielding ...
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Dual Phase Steel Production Bumpers

SAE Technical Paper Series, 1979
<div class="htmlview paragraph">The use of HSLA dual phase steel is an effective method of reducing bumper weight while meeting ever increasing government performance requirements. A paper analysis, followed by a hardware evaluation, successfully substituted “dual phase” for conventional HSLA steel at a reduced thickness.
Harvey H. L. Mantey, Fred T. Burton
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Dual-Phase Automotive Steels

Abstract Dual-phase (DP) steel is comprised of ferrite and martensite obtained from low-carbon or low-alloy high-strength steel through specific heat treatment processes, such as critical zone heat treatment or controlled rolling and cooling.
Ming Tu Ma, Hong Zhou Lu
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MACHINING CHARACTERISTICS OF DUAL-PHASE STEEL

Materials and Manufacturing Processes, 1990
ABSTRACT A dual-phase steel was produced from a hot-rolled HSLA steel ASTM-A58S by quenching from an intercritical temperature which produced a structure consisting of 80 vol.% martensite plus 20vol.%ferrite. The as-received hot-rolled structure consisted primarily of 60 vol.% ferrite plus 40 vol.% pearlite.
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Work hardening of dual-phase steels

Metal Science, 1981
AbstractA detailed qualitative and quantitative microstructural examination of four dual-phase steels has been carried out. Dual-phase structures were produced in three of these steels by intercritical annealing; the other was in the as-rolled condition. Similar combinations of tensile properties were obtained with all four steels.
N. K. Balliger, T. Gladman
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Hydrogen embrittlement of dual-phase steels

Metallurgical Transactions A, 1981
Reversible hydrogen embrittlement (HE) is usually only found in quenched and tempered steels with yield stresses in excess of 1035 MPa (150 ksi). A study of the HE phenomena in two dual-phase steels with tensile strengths of about 690 MPa (100 ksi) has shown that these steels are susceptible to the presence of hydrogen.
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