scholarly journals Effect of Cooling Path on Microstructure Features and Tensile Properties in a Low Carbon Mo-V-Ti-N Steel

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 677 ◽  
Author(s):  
Xinping Xiao ◽  
Genhao Shi ◽  
Shuming Zhang ◽  
Qingfeng Wang
Keyword(s):  
Yield Strength ◽  
Tensile Properties ◽  
Bainitic Ferrite ◽  
Underlying Mechanism ◽  
Controlled Rolling ◽  
Low Carbon ◽  
Cooling Path ◽  
Gleeble 3500 ◽  
Gleeble 3500 System ◽  
Ferrite Grain Size

The two-stage controlled rolling and cooling of a low carbon Mo-V-Ti-N steel at different cooling paths was simulated through a Gleeble 3500 system. The microstructure and tensile properties of each sample were examined by estimating their dependence on the cooling paths. It was indicated that a mixed microstructure of polygonal ferrite (PF), acicular ferrite (AF), granular bainitic ferrite (GBF), and a martensite-austenite (M-A) constituent was developed in each sample. Results showed that application of the reduced cooling rate and elevated finishing cooling temperature led to the increases in the effective ferrite grain size and the precipitate amount despite a decrease in dislocation density, which eventually resulted in the overall yield strength. It also led to an increasing amount of M-A constituent, which lowered the yield ratio and, thereby, enhanced the capacity for strain hardening. In addition, the underlying mechanism for the correlations among the cooling path, the microstructure, and the yield strength was considered.

ALLOY STEEL 1.8 Cu-1.0 Mn-1.2 Si

Alloy Digest ◽  
1976 ◽  
Vol 25 (10) ◽  
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Cast Steel ◽  
Heat Treating ◽  
Low Carbon ◽  
Steel Mills

Abstract Alloy Steel 1.8 Cu-1.0 Mn-1.2 Si is a low-carbon (0.20% max.) cast steel designed to provide intermediate tensile and yield strength. Copper lowers the ductility and toughness of cast steel but, for a given increase in tensile strength, the loss of ductility and toughness is less if copper is added than if carbon is increased. This steel has many uses such as booms, long shafting and gears. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: SA-325. Producer or source: Alloy steel mills and foundries.

INCO ALLOY MS 250

Alloy Digest ◽  
1987 ◽  
Vol 36 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Intermetallic Compound ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Low Carbon ◽  
Martensitic Matrix ◽  
Inco Alloy ◽  
Heat Treated

Abstract INCO Alloy MS 250 is a cobalt-free managing steel with nominal yield strength of 250,000 psi, fully heat-treated. Strengthening results from intermetallic-compound precipitation in a low-carbon martensitic matrix. It has excellent weldability. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-426. Producer or source: Inco Alloys International Inc..

SPARTAN II

Alloy Digest ◽  
2016 ◽  
Vol 65 (1) ◽  
Keyword(s):  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Low Carbon ◽  
Copper Precipitation ◽  
High Toughness ◽  
The Family ◽  
Alloy Steels ◽  
Minimum Yield

Abstract SPARTAN II (HSLA-100) is one of the family of Spartan high strength (>690 MPa, or >100 ksi, minimum yield strength), high toughness, improved weldability steels, which are alternatives to traditional quenched and tempered alloy steels. The Spartan family of steels are low carbon, copper precipitation hardened steels. Spartan II has improved yield strength compared to Spartan I. This datasheet provides information on composition, physical properties, microstructure, tensile properties. It also includes information on forming and joining. Filing Code: SA-738. Producer or source: ArcelorMittal USA.

PERFORM 420

Alloy Digest ◽  
2015 ◽  
Vol 64 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
Bend Strength ◽  
Low Carbon ◽  
The Usa ◽  
Minimum Yield

Abstract PERFORM 420 is one of the Perform series of steels, which are low carbon micro-alloyed steels that are thermomechanically rolled. The 420 in the title refers to the minimum yield strength in MPa (61 ksi). The USA equivalent is Perform 60. This datasheet provides information on composition, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming and joining. Filing Code: SA-729. Producer or source: ThyssenKrupp Steel Europe AG.

CARILLOY T-1

Alloy Digest ◽  
1955 ◽  
Vol 4 (1) ◽  
Keyword(s):  
United States ◽  
Corrosion Resistance ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Low Carbon ◽  
Complex Alloy ◽  
United States Steel Corporation ◽  
Complex Alloy Steel

Abstract CARILLOY T-1 is a low-carbon complex alloy steel used where high levels of yield strength and toughness are required. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-25. Producer or source: United States Steel Corporation.

Effect of Ferrite Grain Size on the Yield-Strength Ratio of Low-Carbon Alloy Steel

2012 ◽  
Vol 535-537 ◽  
pp. 545-548 ◽  
Author(s):  
Qing Bo Yu
Keyword(s):  
Grain Size ◽  
Tensile Strength ◽  
Yield Strength ◽  
Alloy Steel ◽  
Experimental Results ◽  
Strength Ratio ◽  
Low Carbon ◽  
Theory Analysis ◽  
Ferrite Grain Size

Using thermo-mechanical controlled process, the experiment on the yield-strength ratio of low-carbon alloy steel was carried out and the effect of ferrite grain size on the yield-strength ratio of steel was discussed. Theory analysis and the experimental results indicate that the smaller ferrite grain size is, the higher the yield-strength ratio is. In addition, the regression formulas on yield and tensile strength are also obtained.

scholarly journals Application of Artificial Neural Network to the Prediction of Tensile Properties in High-Strength Low-Carbon Bainitic Steels

Metals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1314
Author(s):  
Sang-In Lee ◽  
Seung-Hyeok Shin ◽  
Byoung-Chul Hwang
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Yield Strength ◽  
Tensile Properties ◽  
Uniform Elongation ◽  
High Strength ◽  
Low Carbon ◽  
Ann Model ◽  
Bainitic Steels ◽  
Artificial Neural

An artificial neural network (ANN) model was designed to predict the tensile properties in high-strength, low-carbon bainitic steels with a focus on the fraction of constituents such as PF (polygonal ferrite), AF (acicular ferrite), GB (granular bainite), and BF (bainitic ferrite). The input parameters of the model were the fraction of constituents, while the output parameters of the model were composed of the yield strength, yield-to-tensile ratio, and uniform elongation. The ANN model to predict the tensile properties exhibited a higher accuracy than the multi linear regression (MLR) model. According to the average index of the relative importance for the input parameters, the yield strength, yield-to-tensile ratio, and uniform elongation could be effectively improved by increasing the fraction of AF, bainitic microstructures (AF, GB, and BF), and PF, respectively, in terms of the work hardening and dislocation slip behavior depending on their microstructural characteristics such as grain size and dislocation density. The ANN model is expected to provide a clearer understanding of the complex relationships between constituent fraction and tensile properties in high-strength, low-carbon bainitic steels.

BISALLOY STRUCTURAL 80

Alloy Digest ◽  
2019 ◽  
Vol 68 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
Structural Steel ◽  
Tensile Properties ◽  
High Strength ◽  
Low Carbon ◽  
Temperature Fracture ◽  
Minimum Yield

Abstract Bisalloy Structural 80 steel (80 ksi minimum yield strength) is a low-carbon, low-alloy, high-strength structural steel exhibiting excellent cold formability and low-temperature fracture toughness. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming and joining. Filing Code: SA-842. Producer or source: Bisalloy Steels Group Limited.

PERFORM 600

Alloy Digest ◽  
2015 ◽  
Vol 64 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
Bend Strength ◽  
Low Carbon ◽  
The Usa ◽  
Minimum Yield

Abstract PERFORM 600 is one of the Perform series of steels, which are low carbon micro-alloyed steels that are thermomechanically rolled. The 600 in the title refers to the minimum yield strength in MPa (87 ksi). The USA equivalent is Perform 78. This datasheet provides information on composition, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming and joining. Filing Code: SA-737. Producer or source: ThyssenKrupp Steel Europe AG.

PERFORM 460

Alloy Digest ◽  
2015 ◽  
Vol 64 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Tensile Properties ◽  
Bend Strength ◽  
Low Carbon ◽  
The Usa ◽  
Minimum Yield

Abstract PERFORM 460 is one of the Perform series of steels, which are low carbon micro-alloyed steels that are thermomechanically rolled. The 460 in the title refers to the minimum yield strength in MPa (67 ksi). The USA equivalent is Perform 67. This datasheet provides information on composition, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming and joining. Filing Code: SA-730. Producer or source: ThyssenKrupp Steel Europe AG.

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