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Ultra High Strength Steel

Finite Element Simulation of Variable Height Roll Die Forming Thermal Mechanical Coupling for DP980 Ultra High Strength Steel

Finite Element Simulation of Variable Height Roll Die Forming Thermal Mechanical Coupling for DP980 Ultra High Strength Steel

... of ultra high strength steel can reduce the mass under the condition of certain ...By high temperature tensile test machine obtained the mechanical properties and stress-strain curves ...

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Effect of Electrochemical Potential and Chloride Concentration on Stress Corrosion Cracking Behavior of 23Co14Ni12Cr3Mo Ultra-High Strength Steel in NaCl Solution

Effect of Electrochemical Potential and Chloride Concentration on Stress Corrosion Cracking Behavior of 23Co14Ni12Cr3Mo Ultra-High Strength Steel in NaCl Solution

... 23Co14Ni12Cr3Mo ultra-High strength steel were investigated by using slow strain rate technique ...23Co14Ni12Cr3Mo steel is under ...

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Initial Corrosion Processes and Mechanism of 23Co14Ni12Cr3Mo Ultra-high Strength Steel in Salt Spray Environment

Initial Corrosion Processes and Mechanism of 23Co14Ni12Cr3Mo Ultra-high Strength Steel in Salt Spray Environment

... The initial corrosion processes and mechanism of 23Co14Ni12Cr3Mo Ultra-high Strength steel were researched by using salt spray test (SST) and electrochemical methods. The corrosion ...

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SCC investigation of low alloy ultra-high strength steel 30CrMnSiNi2A in 3.5wt% NaCl solution by slow strain rate technique

SCC investigation of low alloy ultra-high strength steel 30CrMnSiNi2A in 3.5wt% NaCl solution by slow strain rate technique

... alloy ultra-high strength steel 30CrMnSiNi2A in environment containing NaCl, SCC behavior of the steel in ...the steel increases rapidly with strain rate decreasing from 1 · 10 5 ...

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Effects of Hydrogen on Stress Corrosion Cracking Behavior of Ultra-High Strength Steel 23Co14Ni12Cr3Mo

Effects of Hydrogen on Stress Corrosion Cracking Behavior of Ultra-High Strength Steel 23Co14Ni12Cr3Mo

... Susceptibility of 23Co14Ni12Cr3Mo ultra-high strength steel to stress corrosion cracking (SCC) in a 3.5% NaCl solution was studied with different hydrogen charging specimens by using slow ...

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Study on the laser cutting quality of ultra high strength steel

Study on the laser cutting quality of ultra high strength steel

... Ultra High Strength Steel (UHSS) has been used in vehicle as it able to improved durability of the vehicle while reducing the mass. Laser cutting process has been an alternative choice in ...

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Experimental evaluation of Co2 laser cutting quality of ultra high strength steel (UHSS) using nitrogen as an assisted gas

Experimental evaluation of Co2 laser cutting quality of ultra high strength steel (UHSS) using nitrogen as an assisted gas

... Material removing processes started as the high intensity beam of infrared light is focused onto the surface of the workpiece by lens. The surface of material was heated by the unreflected light from the lens. ...

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A comparative evaluation of microstructural and mechanical behavior of fiber laser beam and tungsten inert gas dissimilar ultra high strength steel welds

A comparative evaluation of microstructural and mechanical behavior of fiber laser beam and tungsten inert gas dissimilar ultra high strength steel welds

... dissimilar steel TIG and laser beam welds is shown in ...maraging steel and AISI 4130 steel is noticed to be lesser as compared to their respective hardness of parent ...maraging steel ...

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Phased array ultrasonic evaluation of ultra high strength steel weldments for aerospace applications

Phased array ultrasonic evaluation of ultra high strength steel weldments for aerospace applications

... Conventional NDT methods like radiographic testing complimented with ultrasonic testing are being employed in detecting the flaws in welding and heat affected zones (Krautkramer, 2008 and Pugalendhi, 2013). Sometimes ...

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Understanding dual precipitation strengthening in ultra-high strength low carbon steel containing nano-sized copper precipitates and carbides

Understanding dual precipitation strengthening in ultra-high strength low carbon steel containing nano-sized copper precipitates and carbides

... yield strength between 450–520 MPa [10, 11] in the as-rolled and air-cooled ...higher strength of these steels is because of the formation of nanosized copper precipitates in ferrite and grain refine- ment ...

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Design and modelling of ultra-high strength steels: nanoprecipitation and plasticity

Design and modelling of ultra-high strength steels: nanoprecipitation and plasticity

... the steel is quenched until when it becomes polygonal ferrite, there is a gradual change in the microstructure, where the initially formed martensite laths undergo rearrangement and recombination during recovery ...

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Influence of loading-rate and steel fibers on the shear strength of ultra high performance concrete

Influence of loading-rate and steel fibers on the shear strength of ultra high performance concrete

... shear strength is observed in comparison to quasi-static ...shear strength is observed by increasing the number of radial notches, indicating a presence of apparent self-confinement especially in fiber ...

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Effect of Alloying Elements on The Corrosion Behavior of 0Cr12Ni3Co12Mo4W Ultra High Strength Stainless Steel

Effect of Alloying Elements on The Corrosion Behavior of 0Cr12Ni3Co12Mo4W Ultra High Strength Stainless Steel

... stainless steel, and the results showed that Al alloying increased the work- hardening property and deteriorated the ductility due to decreasing the austenite phase and increasing the ferrite phase, but had an ...

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Hydrogen re-embrittlement susceptibility of ultra high strength steels

Hydrogen re-embrittlement susceptibility of ultra high strength steels

... conditions. Steel undergoing free corrosion due to direct exposure to marine atmosphere could be represented by the point ( X ) in the Pourbaix diagram ...the steel directly exposed to 1 g/l NaCl solutions ...

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Optimization of thermomechanical parameters to produce an ultra-high strength compressor disk

Optimization of thermomechanical parameters to produce an ultra-high strength compressor disk

... tempered martensite. Mirak and Nili-Ahmadabadi [13] have also studied the effect of austempering treatments on the microstructure and mechanical properties of AISI 4130 type steel. In this study, the isothermal ...

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Passive Properties of Cr12Ni3Co12Mo4W Ultra-High-Strength Martensitic Stainless Steel

Passive Properties of Cr12Ni3Co12Mo4W Ultra-High-Strength Martensitic Stainless Steel

... passive films formed at anodic potentials were predominantly composed of Fe oxides, whereas those formed at cathodic potentials were primarily composed of oxides and hydroxides of Cr. The contribution of alloy element Ni ...

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Influence of Fibre Size on the Compressive Strength of Ultra- High Performance Concrete

Influence of Fibre Size on the Compressive Strength of Ultra- High Performance Concrete

... of steel fibre has negative influence on the compressive strength, the mix between two different lengths of steel fibre might improve or eliminated this shortcoming of adding ...compressive ...

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Processing and Development of an Ultra-Light, High Strength Material through Powder Metallurgy

Processing and Development of an Ultra-Light, High Strength Material through Powder Metallurgy

... The Fraunhofer Institute for Manufacturing and Advanced Materials has developed a process for creating hollow spheres using various metals, such as titanium, nickel, and stainless steel [18]. Some of these ...

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Shear Behavior of Steel-Fiber Reinforced Ultra-High-Strength Self-Compacted Concrete Beams

Shear Behavior of Steel-Fiber Reinforced Ultra-High-Strength Self-Compacted Concrete Beams

... mm-long steel fibers, one with flattened ends and a circular cross section and the other with a crimped geometry and a crescent cross section, were investigated at fiber volume fractions varying between 0 and ...

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Effect of alloy treatment and coiling temperature on microstructure and bending performance of ultra high strength strip steel

Effect of alloy treatment and coiling temperature on microstructure and bending performance of ultra high strength strip steel

... High strength steel strip; Coiling temperature; Bainite; Martensite; Bend test; Microstructural homogeneity; Crystallographic texture... There has been an increasing interest to develop [r] ...

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