Wide-Plate Testing of Weldments: Part II—Wide-Plate Evaluation of Notch Toughness

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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Local Notch Toughness of Slab Surface Zone in ULC/IF and HSLA Steels

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.662.209 ◽

2015 ◽

Vol 662 ◽

pp. 209-212

Author(s):

Margita Longauerová ◽

Maria Hurakova ◽

Pavel Bekeč ◽

Svätoboj Longauer ◽

Mária Fedorová ◽

...

Keyword(s):

Hsla Steel ◽

Notch Toughness ◽

Grain Structure ◽

Surface Zone ◽

Slab Surface ◽

Slab Width ◽

Fine Grain ◽

Hsla Steels ◽

Ferrite Structure ◽

Ferrite Grain Size

The aim of this work was to analyze changes in local toughness KCV using Charpy V-notch impact tests in the slab surface zone in relation to the microstructure in ULC/ IF steel and TiNb HSLA steel. Marked heterogeneity in KCV values was confirmed in the surface zone across the width of transitional slabs. Distinct local differences in notch toughness across the slab width were found to be linked primarily with changes in ferrite grain size. Low KCV values in the analyzed steels were linked with coarse grain structure, while much finer ferrite structure was identified in tough samples. The heterogeneity of KCV vales in the analyzed steels may be influenced by differences in thickness of the fine-grain slab surface zone, and by the presence of tertial cementite and (in HSLA steel) of pearlite as well.

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Mechanichal Properties of DGEBA/TEPA Modified Epoxy Resin

Materials Science Forum ◽

10.4028/www.scientific.net/msf.775-776.588 ◽

2014 ◽

Vol 775-776 ◽

pp. 588-592

Author(s):

Camila Rodrigues Amaral ◽

Ruben Jesus Sanchez Rodriguez ◽

Magno Luiz Tavares Bessa ◽

Verônica Scarpini Cândido ◽

Sergio Neves Monteiro

Keyword(s):

Mechanical Properties ◽

Plastic Deformation ◽

Epoxy Resin ◽

Yield Stress ◽

Diglycidyl Ether ◽

Notch Toughness ◽

Epoxy Network ◽

Structural Network ◽

Flexural Tests ◽

Modified Epoxy

The correlation between the structural network of a diglycidyl ether of the bisphenol-A (DGEBA) epoxy resin, modified by two distinct aliphatic amines (tetraethylenepentamine TEPA and jeffamine D230), and its mechanical properties, was investigated as possible matrix for abrasive composites applications. Both flexural tests, to determine the yield stress and the elastic modulus, as well as impact tests to determine the notch toughness, were performed. The DGEBA/D230 presented the highest stiffness and toughness but lowest yield stress. This epoxy network also displayed a greater plastic deformation during fracture.

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