Results 221 to 230 of about 1,860 (267)
Some of the next articles are maybe not open access.
Plastic anisotropy of dual-phase steels
International Journal of Plasticity, 1990Abstract 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 +3 more
openaire +1 more source
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 ...
openaire +1 more source
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 ...
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Ming Tu Ma, Hong Zhou Lu
openaire +1 more source
MACHINING CHARACTERISTICS OF DUAL-PHASE STEEL
Materials and Manufacturing Processes, 1990ABSTRACT 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.
openaire +1 more source
Work hardening of dual-phase steels
Metal Science, 1981AbstractA 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
openaire +1 more source
Hydrogen embrittlement of dual-phase steels
Metallurgical Transactions A, 1981Reversible 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.
openaire +1 more source
Spot Weldability of Dual-Phase Steel
SAE Technical Paper Series, 1979<div class="htmlview paragraph">The spot welding characteristics of VAN-QN (80), a dual-phase HSLA steel, were examined with regard to the strength and ductility of spot welds under static, impact and cyclic loading and compared to a conventional V-N HSLA steel and SAE 1008 low carbon steel.</div> <div class="htmlview paragraph">The ...
B. Pollard, R. H. Goodenow
openaire +1 more source
Failure Initiation in Dual-Phase Steel
Key Engineering Materials, 2013This research work aims to model the failure initiation in dual-phase (DP) steel. A microstructure based approach by means of representative volume elements (RVE) is employed to evaluate the microstructure deformation and the failure initiation on the mesoscale. In order to determine cohesive parameters for martensite cracking, a two level approach has
Ali Ramazani +3 more
openaire +1 more source
Properties of As-Rolled Dual Phase Steels
SAE Technical Paper Series, 1979<div class="htmlview paragraph">Microstructure, mechanical properties, lab formability and ageing response of two as-hot-rolled dual phase steels, a heat treated dual phase steel, and microalloyed 345 MPa and 550 MPa (50 ksi and 80 ksi) steels are compared.
A. E. Cornford, J. R. Hiam, R. M. Hobbs
openaire +1 more source