Results 211 to 220 of about 32,528 (259)

Effect of delaminations on improvement of notch toughness at low temperatures

Scripta Materialia, 1996
The notched-bar impact test is often used to assess the notch toughness of engineering materials. The principle of the test is that a material absorbs a certain amount of energy when it breaks; the energy thus absorbed is an indication of the material`s resistance to impact fracture.
W. Zhou, N.L. Loh
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The Improvement of 13MnNiMoNbR Weld Strength and Low Temperature Toughness

Advanced Materials Research, 2011
For the thick steel plate 13MnNiMoNbR, submerged arc welding was carried out, three kinds of wires were used H08Mn2MoA, H10Mn2MoA, H10Mn2Ni2MoA and together with two kinds of fluxes which are SJ101, SJ102 .After welding ,normalizing plus tempering heat treatment was added.Using V-shaped notch Charpy impact test and the fracture morphology was observed ...
Song Ya Tian, Jun Jie Zhang, Gen Yuan Zhang   +2 more
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Low-temperature toughness of direct quenched offshore steel

Materials Research Innovations, 2015
AbstractThe ductile-to-brittle transition of direct quenched and tempered martensite begins at 243 K, and the impact energy of the superficial region of the steel plate decreases from 104 J (243 K) to 50 J (213 K). In contrast, the ductile-to-brittle transition of bainite begins at room temperature.
T. C. Cheng, C. Yu, T. C. Yang, C. Y. Huang, H. C. Lin, R. K. Shiue   +5 more
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The impact toughness and mechanism of low-carbon steel fracture at low temperatures

Industrial laboratory. Diagnostics of materials, 2019
The goal of the work is to study the effect of severe plastic deformation (SPD) on the impact toughness and fracture mechanism of St3sp low-carbon structural steel within a test temperature range of 293 – 213 K. The issues of deformation processing of steel St3sp billets using SPD method in conditions of the equal-channel angular pressing scheme (ECAP)
A. M. Ivanov, N. D. Kovalenko
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Study on fracture toughness of carbon-carbon composites at low temperatures

Materials Today: Proceedings, 2022
Abstract Carbon-carbon composites (C-CC), employed as composites in space and other industries for their outstanding properties. In extreme temperatures, the C-CC has proved to be the most efficient material. C-CC is one of the top thermal quality high-temperature materials such as high-temperature stability, excellent thermal conductivity, and low ...
B.V. Sunil Kumar, Neelakantha V. Londe, Mohan Kumar, M. Lokesha, S.N. Vasantha Kumar, A.O. Surendranathan   +5 more
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Fracture toughness and deformation of titanium alloys at low temperatures

Metallurgical Transactions, 1970
Experimental data concerning the influence of compositional, microstructural and textural variations on the fracture toughness and deformation kinetics of α and α-β titanium alloys are presented. In particular, the influence of these parameters on the thermal and athermal components of the flow stress is compared to their influence on fracture ...
S. F. Frederick, W. D. Hanna
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Determining the Low-Temperature Fracture Toughness of Asphalt Mixtures

Transportation Research Record: Journal of the Transportation Research Board, 2002
There has been a sustained effort in applying fracture mechanics concepts to crack formation and propagation in bituminous pavement materials. Adequate fracture resistance is an essential requirement for asphalt pavements built in the northern part of the United States and Canada, for which the prevailing failure mode is cracking ...
Mihai O. Marasteanu, Shongtao Dai, Joseph F. Labuz, Xue Li   +3 more
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Equipment for fracture toughness testing of specimen at low temperatures

Strength of Materials, 1988
1. Equipment was developed and the test procedure proposed for fracture toughness testing compact specimens of structural materials in off-center loading at low temperatures down to 4.2°K. 2. The strain gauges and dynamometer operating-directly in the cryogenic liquids were produced and calibrated at various temperatures.
I. D. Abushenkov, A. I. Alekseev, V. Ya. Il'ichev, N. I. Mokryi, A. I. Telegon, V. K. Chernetskii   +5 more
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Low temperature impact toughness of high strength structural steel

Thin-Walled Structures, 2018
Abstract Impact toughness properties of four kinds of high strength steel (HSS) were investigated with the nominal yield strength 460, 690, 800 and 960 MPa, respectively. The specialty of impact toughness among base metal, heat affected zone (HAZ) and weld metal were also compared and discussed.
Lewei Tong, Lichao Niu, Shuang Jing, Liwen Ai, Xiao-Ling Zhao   +4 more
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Evaluation of Fracture Toughness of Semirigid Asphalt Concretes at Low Temperatures

Transportation Research Record: Journal of the Transportation Research Board, 2011
The fracture characteristics of semirigid asphalt concrete (SRAC) prepared from a highly porous asphalt mixture (matrix) with 18% to 22% air voids and cement paste were evaluated. Two asphalt binders and several polymer-modified cement pastes that were grouted into the porous matrix were used.
Sung-Hyun Baek, Jun-Pyo Hong, Sung Un Kim, Jung-Soon Choi, Kwang-Woo Kim   +4 more
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