Characterization of Precipitation Behavior and Fracture Toughness along Thickness Direction in SA508 Gr.3 Mn-Mo-Ni Low Alloy Steels

Abstract UNIFLUX VCM 125 is a continuous flux-cored welding electrode (wire) that is used to deposit 1 1/4% chromium-1/2% molybdenum steel for which it was developed. Welding is protected by a shielding atmosphere of 100% carbon dioxide. This electrode also may be used to weld other low-alloy steels and carbon steels; however, the weld metal may differ somewhat from 1 1/4% chromium-1/2% molybdenum because of weld-metal dilution. When Uniflux VCM 125 is used to weld 1 1/4% chromium-1/2% molybdenum steel, it provides 95,000 psi tensile strength at 70 F and 24 foot-pounds Charpy V-notch impact at 40 F. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-340. Producer or source: Unicore Inc., United Nuclear Corporation.

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TRI-MARK TM-115

Alloy Digest ◽

10.31399/asm.ad.sa0392 ◽

1983 ◽

Vol 32 (8) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Arc Welding ◽

High Strength ◽

Heat Treating ◽

Low Alloy Steels ◽

Mining Equipment ◽

Alloy Steels ◽

Temperature Impact ◽

Welding Electrode

Abstract TRI-MARK TM-115 is a gas-shielded flux-cored welding electrode for continuous high deposition are welding. It is designed specifically for semiautomatic and automatic arc welding of high-strength low-alloy steels and quenched-and-tempered steels. This gas-sheilded tubular wire can be used for single and multiple-pass welding. It has outstanding low-temperature impact properties. Its applications including mining equipment, large vehicles and similar items. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-392. Producer or source: Tri-Mark Inc..

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Hardening Mechanism in Low-Carbon Low-Alloy Steels with a Simultaneous Increase in Ductility and Fracture Toughness

Physical Mesomechanics ◽

10.1134/s1029959920040098 ◽

2020 ◽

Vol 23 (4) ◽

pp. 347-353

Author(s):

P. V. Kuznetsov ◽

V. E. Panin ◽

N. K. Galchenko

Keyword(s):

Fracture Toughness ◽

Simultaneous Increase ◽

Low Alloy Steels ◽

Low Carbon ◽

Hardening Mechanism ◽

Alloy Steels

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Fracture toughness of two experimental high-strength bainitic low-alloy steels containing silicon

Materials Science and Technology ◽

10.1179/mst.1987.3.6.441 ◽

1987 ◽

Vol 3 (6) ◽

pp. 441-449 ◽

Cited By ~ 69

Author(s):

V. T. T. Miihkinen ◽

D. V. Edmonds

Keyword(s):

Fracture Toughness ◽

High Strength ◽

Low Alloy Steels ◽

Alloy Steels

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Mechanical Properties of SA508 Gr.4N Model Alloys as a High Strength RPV Steel

ASME 2010 Pressure Vessels and Piping Conference: Volume 9 ◽

10.1115/pvp2010-26002 ◽

2010 ◽

Cited By ~ 1

Author(s):

Min-Chul Kim ◽

Ki-Hyoung Lee ◽

Bong-Sang Lee ◽

Whung-Whoe Kim

Keyword(s):

Mechanical Properties ◽

Fracture Toughness ◽

Impact Toughness ◽

Power Plants ◽

Charpy Impact ◽

Alloying Elements ◽

Low Alloy Steels ◽

Charpy Impact Toughness ◽

Age Related ◽

Alloy Steels

Demands of RPV materials with higher strength and toughness are rising to increase the power capacity and the operation life of nuclear power plants. The ASME SA508 Gr.4N specification can give a superior toughness and strength to the commercial low alloy steels such as SA508 Gr.3. However, the SA508-Gr.4N steels have not yet been used commercially due to a lack of information of the productivity and the age related properties. While the irradiation embrittlement studies are going-on, the current paper focused on the effects of alloying elements such as Ni, Cr and Mo on the fracture mechanical properties of the SA508 Gr.4N low alloy steels. Various model alloys were fabricated by changing the contents of alloying elements based on the composition range of the ASME specification. Tensile properties, Charpy impact toughness and fracture toughness of the model alloys were evaluated and those properties were discussed with the microstructural characteristics of each alloy. The strengths of the alloys were increased with increase of the Ni and Mo contents while there was no remarkable change of the yield strength with the Cr addition. The Charpy impact and fracture toughness were considerably improved with the increase of Ni, Cr contents. The Mo addition did not change the toughness properties significantly. The Cr contents were more effective on the fracture toughness through changing the carbides precipitation characteristics and the Ni contents were effective on the Charpy impact toughness through changing the effective grain size.

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