A Comparison of Charpy V-Notch, Dynamic Tear, and Precracked Charpy Impact Transition-Temperature Curves for AAR Grades of Cast Steel

1976 ◽  
Vol 98 (2) ◽  
pp. 446-452
Author(s):  
R. L. Sharkey ◽  
D. H. Stone
Keyword(s):  
Fracture Toughness ◽  
Transition Temperature ◽  
Cast Steel ◽  
Charpy Impact ◽  
High Strength ◽  
Temperature Data ◽  
Transition Temperatures ◽  
Strength Alloy ◽  
Impact Transition Temperature ◽  
Alloy Cast

Impact tests using Charpy V-notch, Dynamic Tear and Precracked Charpy samples were conducted on AAR-B, AAR-C (several compositions and heat treatments), and AAR-E cast grades of steel and on a high-strength, alloy cast steel. Graphical presentations of the transition-temperature data are given. Differences in the relative shapes of the curves and the locations of the NDT temperatures with respect to the transition temperatures are discussed. Fracture toughness, KId, values are also presented.

ASTM A710

Alloy Digest ◽  
1990 ◽  
Vol 39 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Properties ◽  
Precipitation Hardening ◽  
Steel Plate ◽  
High Strength ◽  
Heat Treating ◽  
Low Carbon ◽  
Bethlehem Steel Corporation ◽  
Strength Alloy ◽  
Carbon Precipitation

Abstract ASTM A710 is a low-carbon, precipitation hardening high-strength alloy steel plate. It is well suited to critical applications. This datasheet provides information on composition and tensile properties as well as fracture toughness. It also includes information on heat treating and joining. Filing Code: SA-446. Producer or source: Bethlehem Steel Corporation.

scholarly journals Toughness Property Control by Nb and Mo Additions in High-Strength Quenched and Tempered Boron Steels

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 95
Author(s):  
Irati Zurutuza ◽  
Nerea Isasti ◽  
Eric Detemple ◽  
Volker Schwinn ◽  
Hardy Mohrbacher ◽  
...  
Keyword(s):  
Solid Solution ◽  
Transition Temperature ◽  
High Strength ◽  
Unit Size ◽  
Tempered Martensite ◽  
Size Refinement ◽  
Direct Quenching ◽  
Property Control ◽  
The Impact ◽  
Impact Transition Temperature

The synergetic effect on hardenability by combining boron with other microalloying elements (such as Nb, Mo and Nb + Mo) is widely known for high-strength medium carbon steels produced by direct quenching and subsequent tempering treatment. The improvement of mechanical properties could be reached through optimization of different mechanisms, such as solid solution hardening, unit size refinement, strain hardening, fine precipitation hardening and the effect of carbon in solid solution. The current study proposes a procedure for evaluating the contribution of different microstructural aspects on Charpy impact toughness. First, the effect that austenite conditioning has on low-temperature transformation unit sizes and microstructural homogeneity was analysed for the different microalloying element combinations. A detailed crystallographic characterization of the tempered martensite was carried out using electron backscattered diffraction (EBSD) in order to quantify the effect of unit size refinement and dislocation density. The impact of heterogeneity and presence of carbides was also evaluated. The existing equations for impact transition temperature (ITT50%) predictions were extended from ferrite-pearlite and bainitic microstructures to tempered martensite microstructures. The results show that microstructural refinement is most beneficial to strength and toughness while unit size heterogeneity has a particularly negative effect on ductile-to-brittle transition behaviour. By properly balancing alloy concept and processing, steel having a yield strength above 900 MPa and low impact transition temperature could be obtained by direct quenching and tempering.

LESCALLOY AF1410 VIM-VAR

Alloy Digest ◽  
2010 ◽  
Vol 59 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
High Strength ◽  
Heat Treating ◽  
High Fracture Toughness ◽  
Steel Company ◽  
High Fracture ◽  
Strength Alloy ◽  
Specialty Steel ◽  
Very High

Abstract Lescalloy AF1410 VIM-VAR is a clean high strength alloy steel with high strength and a very high fracture toughness. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, and machining. Filing Code: SA-618. Producer or source: Latrobe Specialty Steel Company.

UDIMAR B-300

Alloy Digest ◽  
1969 ◽  
Vol 18 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Precipitation Hardening ◽  
Cobalt Content ◽  
High Strength ◽  
Heat Treating ◽  
Temperature Performance ◽  
Strength Alloy

Abstract UDIMAR B-300 is an 18% nickel maraging steel having excellent toughness and ductility at high strength levels. It is a fabricable and weldable ultra-high strength alloy steel combining the mechanical properties derived from precipitation hardening and martensitic transformation. It has increased cobalt content compared with UDIMAR B-250 (Alloy Digest SA-206, February 1967). This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-244. Producer or source: Special Metals.

VASCOJET M-A (CVM)

Alloy Digest ◽  
1963 ◽  
Vol 12 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
Corrosion Resistance ◽  
High Temperature ◽  
High Strength ◽  
Heat Treating ◽  
Steel Company ◽  
Vanadium Alloys ◽  
Temperature Performance ◽  
Strength Alloy

Abstract Vascojet M-A (CVM) is an ultra high-strength alloy steel capable of reaching tensile strength values up to 360,000 psi and maintaining high strength levels at operating temperatures to 1000 deg. F. It combines extremely high strength with ductility, toughness, fatigue and heat resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-150. Producer or source: Vanadium-Alloys Steel Company.

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