Results 21 to 30 of about 79,931 (210)

An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]

open access: yes, 2011
A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas   +2 more
core   +1 more source

The role of aggregates in the thermal stability of Mg-PSZ refractories for vacuum induction melting [PDF]

open access: yes, 2015
Mg-PSZ refractories used as vacuum induction melting crucibles are particle-reinforced composites with aggregate and matrix phases comprising fused zirconia.
Quadling, Amanda Gail
core   +1 more source

Development of TP170P Big Size High-grade Steel Gun Pipe

open access: yesTeshugang, 2023
As the diameter of the casing in the reservoir becomes larger and larger, and the well go deeper and deeper, the demand for strength and toughness of large-diameter perforating barrel becomes stronger.
Zhou Jiaxiang   +4 more
doaj  

Fracture behaviour of alloys for a new laser ranged satellite [PDF]

open access: yes, 2018
A new laser-ranged satellite called LARES 2 (Laser Relativity Satellite 2) has been recently designed for accurate tests of Einsten's theory of General Relativity and space geodesy.
Brotzu, A.   +4 more
core   +1 more source

Study on impact toughness of TMCP and quenched and tempered high strength steels

open access: yesCase Studies in Construction Materials
In this study, the effect of steel rolling technique, temperature, yield strength and welding heat input on the impact toughness of high-strength steels is studied. The impact toughness of five kinds of high strength steels with yield strength of 550 MPa,
Jin Jiang   +4 more
doaj   +1 more source

Influence of boron content on the fracture toughness and fatigue crack propagation kinetics of bainitic steels [PDF]

open access: yes, 2016
The relatively good combination of high strength and ductility makes bainitic steels a candidate to replace many other steels in industrial applications. However, in service, ductility and strength are not up to standard requirements.
Cabrera Marrero, José M.   +4 more
core   +2 more sources

The Influence of Centerline Segregation on Impact Toughness in Welding Heat-Affected Zone of X70 Pipeline Steel

open access: yesMetals
The influence of centerline segregation on the low-temperature impact toughness of the heat-affected zone (HAZ) of welded joints was studied by welding experiments on X70 steel plates rolled from continuous casting slabs with segregation grades of class ...
Fujian Guo   +4 more
doaj   +1 more source

Study on the effect of micro-shrinkage porosity on the ultra-low temperature toughness of ferritic ductile iron

open access: yesHigh Temperature Materials and Processes, 2022
In this study, the ductile iron ingots are cast using a metal mold, and the riser neck diameter is changed to control the micro-shrinkage porosity, which can affect the ultra-low temperature toughness of ferritic ductile iron.
Chen Shuying   +5 more
doaj   +1 more source

Analysis of temperature effects near mode I cracks in glassy polymers [PDF]

open access: yes, 2005
A previous isothermal study has shown that the toughness of glassy polymers is governed by the competition between shear yielding and crazing. The present work aims at investigating loading rates for which thermal effects need to be accounted for.
Basu, S.,   +2 more
core   +6 more sources

The Role of Splitting Phenomenon under Fracture of Low-Carbon Microalloyed X80 Pipeline Steels during Multiple Charpy Impact Tests

open access: yesApplied Mechanics, 2022
The ambiguity of the splitting effect on X80 low-carbon microalloyed pipeline steels’ tendency towards brittle fracture prompted an experimental study of impact toughness scattering based on multiple Charpy impact tests in a temperature range from 20 °C ...
Matvey Matveevich Kantor   +3 more
doaj   +1 more source

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