Results 71 to 80 of about 79,931 (211)
Study on Impact Toughness and Fracture Characteristics of N80 Steel Oil Casing at Low Temperature
Cailiao Baohu, 2023 For clarifying the toughness change rules of N80 steel for oil casing under low temperature conditions, the oscillometric shock performance tests were conducted on N80 steel oil casing materials at different temperatures (25, 0, -20, and -40 ℃) using an oscilloscope impact meter.
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Low Temperature Impact Toughness of Steel S355NL for Wind Power Tower Flange
Teshugang, 2015 The tangential and axial impact toughness of steel S355NL for wind power tower flange (/% : 0.14C, 0.22Si, 1.35Mn, 0.010P, 0.002S, 0.06Cr, 0.01Mo, 0.l0Ni, 0.03Cu, 0.40Ceq) at -20~-80℃ has been tested and analyzed.
戈文英
doaj
σ-phase precipitation in weld metal of austenitic stainless steels and its effect on properties
Hanjie xuebaoLow-temperature conditions necessitate high toughness in the welded joints of austenitic stainless steel structures. However, the impact toughness of the weld metal decreases significantly when using electrodes developed for SMAW under such conditions ...
Xuegang ZHANG +6 more
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Materials & DesignThe further advancement of microalloyed medium carbon steels is often limited by low-temperature toughness instability. A microalloyed medium carbon steel with both strength and low-temperature toughness was produced through a warm rolling and short-time
Wanli Sun +11 more
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Overview of Production and Research of Medium and Heavy Plates and Low Temperature Impact Toughness
TeshugangWith the rapid development of energy infrastructure， shipbuilding and promotion of China’s “the Belt and Road” strategy， the demand for medium and heavy plates that widely used for containers/pressure vessels， ships， pipelines， etc.，is growing ...
Li Xin +5 more
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Fluoroether modified epoxy composites [PDF]
, 1983 Addition of controlled amounts of perfluorinated alkyl ether diacyl fluoride to epoxy resin systems prior to cure results in a formulation which, exhibits improved energy absorbing ...
Rosser, R. W., Taylor, M. S.
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Effect of Heat Treatment Process on Low Temperature Impact Toughness of 40CrMnMo Steel
Teshugang, 2020 Through different heat treatment processes：800、820 ℃ low temperature quenching + 600℃ tempering、 880 °C +860 °C twice quenching + 600℃ tempering and 860 °C once quenching + 600 °C tempering,the heat treatment experiment on 40CrMnMo steel has been carried
张越 +4 more
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Journal of Materials Research and TechnologyThe effect of different welding heat inputs on the microstructure and mechanical properties of the simulated coarse grained heat affected zone (CGHAZ) of high-strength wind power steel with yield strength of 500 MPa has been investigated using scanning ...
Xiaoya Wang +4 more
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CrystalsAt very low temperatures, typically ductile materials, especially body-centered cubic (BCC) steels, often exhibit an abrupt transition to brittle fracture, significantly limiting their applicability in cryogenic and low-temperature environments. This challenge arises from the inherent properties of BCC steels, where ductility is drastically reduced ...
Minha Park +6 more
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Progress in materials and structures at Lewis Research Center [PDF]
The development of power and propulsion system technology is discussed. Specific emphasis is placed on the following: high temperature materials; composite materials; advanced design and life prediction; and nondestructive evaluation.
Davies, R. L. +3 more
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