Characterization of the Fracture Behavior of Fine-Grained High-Strength Low-Alloy (HSLA) Steels and Iron-Base Alloys Under Low-Temperature and Mechanical Environments

2009 ◽  
pp. 394-394-19
Author(s):  
MR Krishnadev ◽  
LR Cutler ◽  
GJ Sojka ◽  
P Gauvin ◽  
G Hamel
Keyword(s):  
Low Temperature ◽  
Fracture Behavior ◽  
High Strength ◽  
Iron Base ◽  
Fine Grained ◽  
Hsla Steels

TRI-MARK TM-811N2

Alloy Digest ◽  
1983 ◽  
Vol 32 (4) ◽  
Keyword(s):  
Low Temperature ◽  
High Strength ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Nickel Steel ◽  
Fine Grained ◽  
Subzero Temperatures ◽  
Steel Weld Metal ◽  
Alloy Steels ◽  
Welding Electrode

Abstract TRI-MARK TM-811N2 is a flux-cored welding electrode for all position semiautomatic arc welding. It is designed to weld 2-3% nickel steels for applications requiring good toughness at subzero temperatures; in addition, it is used to weld various other high-strength low-alloy steels and various fine-grained steels with low-temperature toughness. Tri-Mark TM-811N2 is used to deposit typically 2.35% nickel steel weld metal with good low-temperature impact properties. It is used for shipbuilding, oil rigs and similar structures. 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-389. Producer or source: Tri-Mark Inc..

ALDUR 500Q, QL, QL1

Alloy Digest ◽  
2019 ◽  
Vol 68 (8) ◽  
Keyword(s):  
Low Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
Low Temperatures ◽  
High Strength ◽  
Part Family ◽  
Fine Grained ◽  
Temperature Performance ◽  
Fine Grained Steels ◽  
Minimum Yield

Abstract Aldur 500 steels (minimum yield strength of 500 MPa, or 73 ksi, for thicknesses up to 50 mm, or 2 in.) are a part family of water-quenched, high-strength, fine-grained steels that have excellent toughness at low temperatures. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on low temperature performance. Filing Code: SA-850. Producer or source: Voestalpine Grobblech GmbH.

Microstructure Characterization of Deep-Drawn DP780-Grade Dual Phase Steel

2013 ◽  
Vol 752 ◽  
pp. 75-84
Author(s):  
Adám Filep ◽  
Valéria Mertinger
Keyword(s):  
Dual Phase Steel ◽  
Annealing Temperature ◽  
Crack Formation ◽  
Intercritical Annealing ◽  
High Strength ◽  
Rolled Sheet ◽  
Dual Phase ◽  
Hsla Steels ◽  
Dp Steels

Dual phase (DP) steels belong to the group of high-strength low-alloy (HSLA) steels. Our study focuses on the causes of crack formation of sheets, which are designed for deep drawing, of DP780-grade dual phase steel. Also, a series of heat treatment experiments were performed regarding the effect of intercritical annealing temperature on the structure and mechanical properties of the finished product (in this case a rolled sheet).

Characterization of the Effect of Notch Bluntness on Hydrogen Embrittlement and Fracture Behavior Using FE Analyses

2015 ◽  
Author(s):  
Jun-Young Jeon ◽  
Nicolas O. Larrosa ◽  
Young-Ryun Oh ◽  
Yun-Jae Kim ◽  
Robert A. Ainsworth
Keyword(s):  
Hydrogen Embrittlement ◽  
Hydrogen Concentration ◽  
Fracture Behavior ◽  
Hydrogen Diffusion ◽  
High Strength ◽  
Ductile Damage ◽  
Diffusion Analysis ◽  
As Stress ◽  
Damage Simulation

This paper introduces a method to characterize the effect of notch bluntness on hydrogen embrittlement for high strength structural steel, FeE 690T, C(T) specimens. Hydrogen concentration depending on notch radius is assessed via finite element (FE) hydrogen diffusion analysis already developed and validated by the authors. Reduction in fracture toughness, KIC or JIC, due to hydrogen embrittlement is evaluated by means of a coupled hydrogen diffusion-ductile damage analysis. The ductile damage simulation used in this study is based on the model known as ‘stress-modified fracture strain model’. Tensile properties and fracture strains are modified according to the level of hydrogen concentration in the simulation and its effect on the fracture behavior of the specimen is simulated for different notch radii.

scholarly journals Crack Growth Studies in a Welded Ni-Base Superalloy

2016 ◽  
Vol 258 ◽  
pp. 237-240
Author(s):  
Anand Harihara Subramonia Iyer ◽  
Krystyna Stiller ◽  
Magnus Hörnqvist Colliander
Keyword(s):  
Gas Turbines ◽  
High Strength ◽  
Fatigue Loading ◽  
Main Body ◽  
Alloy 718 ◽  
Jet Engines ◽  
Fine Grained ◽  
Dwell Fatigue ◽  
Corrosion Resistant Alloy

It is well known that the introduction of sustained tensile loads during high-temperature fatigue (dwell-fatigue) significantly increases the crack propagation rates in many superalloys. One such superalloy is the Ni-Fe based Alloy 718, which is a high-strength corrosion resistant alloy used in gas turbines and jet engines. As the problem is typically more pronounced in fine-grained materials, the main body of existing literature is devoted to the characterization of sheets or forgings of Alloy 718. However, as welded components are being used in increasingly demanding applications, there is a need to understand the behavior. The present study is focused on the interaction of the propagating crack with the complex microstructure in Alloy 718 weld metal during cyclic and dwell-fatigue loading at 550 °C and 650 °C.

ALDUR 900Q, QL

Alloy Digest ◽  
2019 ◽  
Vol 68 (12) ◽  
Keyword(s):  
Low Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Low Temperatures ◽  
High Strength ◽  
Fine Grained ◽  
Temperature Performance ◽  
Fine Grained Steels ◽  
Minimum Yield

Abstract Aldur 900 steels (minimum yield strength of 900 MPa, or 131 ksi, for thicknesses up to 50 mm, or 2 in.) are a part of a family of waterquenched, high-strength, fine-grained steels that have excellent toughness at low temperatures. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on low temperature performance. Filing Code: SA-857. Producer or source: Voestalpine Grobblech GmbH.

ALDUR 620Q, QL, QL1

Alloy Digest ◽  
2019 ◽  
Vol 68 (10) ◽  
Keyword(s):  
Low Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
Low Temperatures ◽  
High Strength ◽  
Part Family ◽  
Fine Grained ◽  
Temperature Performance ◽  
Fine Grained Steels ◽  
Minimum Yield

Abstract Aldur 620 steels (minimum yield strength of 620 MPa, or 90 ksi, for thicknesses up to 50 mm, or 2 in.) are a part family of water-quenched, high-strength, fine-grained steels that have excellent toughness at low temperatures. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on low temperature performance. Filing Code: SA-853. Producer or source: Voestalpine Grobblech GmbH.

ALDUR 550Q, QL, QL1

Alloy Digest ◽  
2019 ◽  
Vol 68 (9) ◽  
Keyword(s):  
Low Temperature ◽  
Yield Strength ◽  
Physical Properties ◽  
Low Temperatures ◽  
High Strength ◽  
Part Family ◽  
Fine Grained ◽  
Temperature Performance ◽  
Fine Grained Steels ◽  
Minimum Yield

Abstract Aldur 550 steels (minimum yield strength of 550 MPa, or 80 ksi, for thicknesses up to 50 mm, or 2 in.) are a part family of water-quenched, high-strength, fine-grained steels that have excellent toughness at low temperatures. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on low temperature performance. Filing Code: SA-851. Producer or source: Voestalpine Grobblech GmbH.

On the structural characterization of precipitates in boron microalloyed steels

1991 ◽  
Vol 49 ◽  
pp. 578-579
Author(s):  
R. Perez ◽  
J.A. Juarez-Islas ◽  
B. Campillo ◽  
J.L. Albarran ◽  
L. Martinez
Keyword(s):  
Electron Microscopy ◽  
Structural Characterization ◽  
Light Element ◽  
High Strength ◽  
Theoretical Models ◽  
Microalloyed Steels ◽  
X Ray ◽  
The Past ◽  
Hsla Steels

Boron alloying has been recognized in the past as a very attractive method for improving the properties of high strength low alloy (HSLA) steels. Small additions of this element have pronounced effects on the hardenability of the steels. Partial explanations on this effect are based on theoretical models which suggest segregation of boron in particular areas of the microstructure such as grain boundaries or precipitates. The detection of boron in steels has so far proved to be difficult due to the small amounts of boron involved and also to the fact of being a light element and therefore difficult to be detected by X-ray microanalysis and transmision electron microscopy.

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