Results 261 to 270 of about 236,408 (305)

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 behavior,
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Nanostructured martensite–austenite dual phase steels

Materials Science and Technology, 2012
Nanostructured martensite–austenite microstructure was achieved by a quenching–partitioning–tempering (Q–P–T) treatment of high carbon low temperature bainitic steel. Microstructure observations showed that the nanostructured steel consisted of fine martensite (about 25 nm in thickness), retained austenite and carbides.
F Hu, K M Wu, R D K Misra
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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
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The formability of dual-phase steels

Journal of Applied Metalworking, 1982
The formability of both heat-treated and as-hot-rolled dual-phase steels was evaluated in neck- and fracture-limited forming modes and compared with the formability of conventional high-strength low-alloy (HSLA) or microalloyed steels. For both production routes the formability of dual-phase steels was found to be sensitive to tensile strength ...
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Fatigue of a dual- phase steel

Metallurgical Transactions A, 1979
A study has been made of the fatigue of a V containing dual-phase steel, whose tensile strength is equivalent to that of SAE 980X high strength, low-alloy (HSLA) steels, as a function of prestrain. It is found that the cyclic stress-strain curve, strain-life response and notch sensitivity are little affected by pre-strains of up to 8 pct: This is in ...
A. M. Sherman, R. G. Davies
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Quantitative microanalysis of dual-phase steels

Metallography, 1982
Abstract An investigation of the quantitative microanalysis of dual-phase steels showed that the quantitative microscope provides values for volume percent of second phase most comparable to manually measured values when a sodium metabisulfite etch is used.
A.R. Marder, A.O. Benscoter
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Dual-Phase Steels

Abstract Dual-phase (DP) steels have the widest usage in the automotive industry because of their excellent combination of strength and ductility. This chapter presents the composition, microstructure, mechanical properties, formability, and attributes of DP steels.
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Commercial, Advenced Dual-Phase Steel Productions

2014
Bu çalışmada ticari çift-fazlı çelik üretim yöntemleri incelenmiştir. Malzeme kullanan bütün endüstriyel alanlarda üreticiler, üstün özelliklere sahip hafif, dayanımı yüksek, şekillendirme kabiliyeti ve şekillendirme sonrası dayanımı iyi olan malzeme kullanmayı arzu ederler. Bu arzu, kullanıcılar açısından da geçerlidir.
DEMİR, Bilge, ERDOĞAN, Mehmet
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Directionally structured dual phase steel composites

1998
Manganese partitioning and mechanical properties of dual phase steels have been examined. The manganese partitioning coefficient increases to a limit with increasing isothermal holding time, and the final equilibrium partitioning coefficient decreases with increasing annealing temperature. The combination of diffusion equations in austenite and ferrite
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Bake-hardening of dual-phase steels

1984
DUE TO COPYRIGHT RESTRICTIONS ONLY AVAILABLE FOR CONSULTATION AT ASTON UNIVERSITY LIBRARY AND INFORMATION SERVICES WITH PRIOR ...
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