Optimization of tensile strength for heat treated micro-alloyed steel weldment

In 38MnVS6 steel, the morphology of sulfide inclusion has a strong influence on the fatigue life and machinability of the steel. In most cases, the MnS inclusions show strip morphology after rolling, which significantly affects the steel quality. Usually, the MnS inclusion with a spherical morphology is the best morphology for the steel quality. In the present work, tellurium was applied to 38MnVS6 micro-alloyed steel to control the MnS inclusion. Trace tellurium was added into 38MnVS6 steel and the effect of Te on the morphology, composition, size and distribution of MnS inclusions were investigated. Experimental results show that with the increase of Te content, the equivalent diameter and the aspect ratio of inclusion decrease strikingly, and the number of inclusions with small aspect ratio increases. The inclusions are dissociated and spherized. The SEM-EDS analysis indicates that the trace Te mainly dissolves in MnS inclusion. Once the MnS is saturated with Te, MnTe starts to generate and wraps MnS. The critical Te/S value for the formation of MnTe in the 38MnV6 steel is determined to be approximately 0.075. With the increase of Te/S ratio, the aspect ratio of MnS inclusion decreases and gradually reaches a constant level. The Te/S value in the 38MnVS6 steel corresponding to the change of aspect ratio from decreasing to constant ranges from 0.096 to 0.255. This is most likely to be caused by the saturation of Te in the MnS inclusion. After adding Te in the steel, rod-like MnS inclusion is modified to small inclusion and the smaller the MnS inclusion, the lower the aspect ratio.

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BRUSH ALLOY 190

Alloy Digest ◽

10.31399/asm.ad.cu0194 ◽

1968 ◽

Vol 17 (12) ◽

Keyword(s):

Tensile Strength ◽

Corrosion Resistance ◽

Physical Properties ◽

Surface Treatment ◽

Tensile Properties ◽

Heat Treating ◽

Copper Strip ◽

Beryllium Copper ◽

Heat Treated

Abstract Brush Alloy 190 is a mill-heat treated beryllium copper strip with a tensile strength up to 190,000 psi. It eliminates the need of customer heat-treating by providing high properties combined with exceptional formability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, joining, and surface treatment. Filing Code: Cu-194. Producer or source: Brush Beryllium Company.

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USS STRUX

Alloy Digest ◽

10.31399/asm.ad.sa0100 ◽

1960 ◽

Vol 9 (7) ◽

Keyword(s):

United States ◽

Tensile Strength ◽

High Strength ◽

Notch Toughness ◽

United States Steel Corporation ◽

Treated Condition ◽

High Strength Level ◽

Heat Treated ◽

Heat Treated Condition ◽

Very High

Abstract USS STRUX is an alloy steel designed for use in the heat treated condition at a minimum tensile strength of 280,000 psi. At this very high strength level the steel has adequate ductility and notch toughness for critical applications. This datasheet provides information on composition and tensile properties. Filing Code: SA-100. Producer or source: United States Steel Corporation.

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EFFECTS OF COOLING PROCESS ON MICROSTRUC-TURE, MECHANICAL PROPERTIES AND PRECIPIT-ATION BEHAVIORS OF NIOBIUM--TITANIUM MICRO--ALLOYED STEEL

ACTA METALLURGICA SINICA ◽

10.3724/sp.j.1037.2011.00633 ◽

2013 ◽

Vol 48 (4) ◽

pp. 441-449

Author(s):

Jun CHEN ◽

Shuai TANG ◽

Zhenyu LIU ◽

Guodong WANG

Keyword(s):

Mechanical Properties ◽

Alloyed Steel ◽

Cooling Process ◽

Niobium Titanium ◽

Micro Alloyed Steel

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Comparison of yield strength, ultimate tensile strength and shear strength on the annealed and heat-treated composites of stainless steel with fly ash and ZnO

Materials Today Proceedings ◽

10.1016/j.matpr.2021.03.145 ◽

2021 ◽

Author(s):

T. Sathish ◽

Sujin Jose Arul ◽

Gopal Kaliyaperumal ◽

G. Velmurugan ◽

De Poures Melvin Victor ◽

...

Keyword(s):

Tensile Strength ◽

Stainless Steel ◽

Shear Strength ◽

Fly Ash ◽

Ultimate Tensile Strength ◽

Yield Strength ◽

Heat Treated

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Effect of Heat Setting Methods on Structures and Properties of High Strength Polyvinyl Alcohol Fibre

Materials Science Forum ◽

10.4028/www.scientific.net/msf.815.643 ◽

2015 ◽

Vol 815 ◽

pp. 643-648

Author(s):

Yin Zhu ◽

Jiong Xin Zhao

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Polyvinyl Alcohol ◽

Setting Time ◽

High Strength ◽

Single Fibre ◽

X Ray Diffraction ◽

Heat Setting ◽

Heat Treated ◽

Setting Process

The effect of heat setting methods on the structures and mechanical properties of high strength polyvinyl alcohol (PVA) fibre is studied in this article. The microstructure and mechanical properties of heat treated PVA fibre is investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), and single fibre electronic tensile strength tester. Results show that the heat setting method with constant tension is a good heat setting method which can largely enhance the tensile strength of PVA fibre. During the heat setting process, the mechanical properties of PVA fibre are greatly affected by the temperature, tension and setting time. When the temperature is 220°C, tension is 5cN/dtex and setting time is 90sec, the tensile strength of PVA fibre increases from 12.0cN/dtex to 16.4cN/dtex in compare with the PVA fibre without heat setting

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Spectrum imaging and three-dimensional atom probe studies of fine particles in a vanadium micro-alloyed steel

Materials Science and Technology ◽

10.1179/174328408x270347 ◽

2008 ◽

Vol 24 (6) ◽

pp. 641-650 ◽

Cited By ~ 22

Author(s):

A. J. Craven ◽

M. MacKenzie ◽

A. Cerezo ◽

T. Godfrey ◽

P. H. Clifton

Keyword(s):

Fine Particles ◽

Three Dimensional ◽

Atom Probe ◽

Alloyed Steel ◽

Spectrum Imaging ◽

Micro Alloyed Steel

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The effect of ageing duration on the mechanical properties of Al alloy 6061-garnet composites

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications ◽

10.1177/146442070121500205 ◽

2001 ◽

Vol 215 (2) ◽

pp. 113-119

Author(s):

S C Sharma

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Compressive Strength ◽

Al Alloy ◽

Destructive Testing ◽

Transmission Electron ◽

Heat Treated ◽

The Matrix ◽

Reinforcing Particle ◽

Alloy 6061

A well-consolidated composite of Al alloy 6061 reinforced with 4, 8 and 12 wt% garnet was prepared by a liquid metallurgy technique, the composite was heat treated for different ageing durations (T6 treatment), and its mechanical properties were determined by destructive testing. The results of the study indicated that, as the garnet particle content in the composites increased, there were marked increases in the ultimate tensile strength, compressive strength and hardness but there was a decrease in the ductility. There was an improvement in the tensile strength, compressive strength, and hardness with ageing due to precipitation. Precipitation in Al alloy 6061, with and without garnet particulate reinforcement, was studied using transmission electron microscopy. The fracture behaviour of the composites was altered significantly by the presence of garnet particles and the crack propagation through the matrix, and the reinforcing particle clusters resulted in final fracture.

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