Results 21 to 30 of about 25,712 (293)

Improvement in low-temperature toughness of Fe-6.5Mn-0.08C Medium-Mn steel by multi-step heat treatment

open access: yesJournal of Materials Research and Technology, 2023
In this study, a novel multi-step heat treatment method, including intercritical annealing and tempering, is proposed to improve the low-temperature toughness of Fe-6.5Mn-0.08C medium-manganese (Mn) steel.
Seung-Hyeok Shin   +3 more
doaj   +1 more source

Effect Mechanism of Curling Temperature on the Toughness of Titanium Microalloyed High-strength Steel GCL700 [PDF]

open access: yesTeshugang
The effect of curling temperature on the mechanical properties of Ti microalloyed high-strength steels was investigated using electron backscatter diffraction, transmission electron microscopy, scanning electron microscopy and mechanical experiments.The ...
Wang Yi, Che Zhichao, Chen Yufeng, Yang Shufeng, Zhang Junfen, Xue Qihe, Li Jingshe
doaj   +3 more sources

Effects of Welding Processes on the Low Temperature Impact Toughness of Structural Steel Welded Joints [PDF]

open access: yesJournal of Korean Society of Steel Construction, 2012
In this study, the Charpy impact test along with metallurgical observation was conducted to evaluate low temperature impact toughness of structural steel welds with different welding processes to find out the optimal welding process to guarantee the required impact toughness at low temperatures.
Chin Hyung Lee   +2 more
openaire   +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  

Permanent indentation characterization for low-velocity impact modelling using three-point bending test [PDF]

open access: yes, 2014
This paper deals with the origin of permanent indentation in composite laminates subjected to low-velocity impact. The three-point bending test is used to exhibit a non-closure of matrix crack which is assumed as a cause of permanent indentation ...
Bouvet, Christophe   +3 more
core   +1 more source

Low velocity impact modeling in composite laminates capturing permanent indentation [PDF]

open access: yes, 2012
This paper deals with impact damage and permanent indentation modeling. A numerical model has been elaborated in order to simulate the different impact damage types developing during low velocity/low energy impact.
Barrau, Jean-Jacques   +2 more
core   +1 more source

Impact Toughness Modification of NIST Low-Energy Charpy Verification Specimens for Testing at Room Temperature

open access: yes, 2017
The possibility for the National Institute for Standards and Technology (NIST) to certify Charpy reference specimens for testing at room temperature (21 C 1 C) instead of _40 C was investigated in a previous study, in which a slightly increased ...
Lucon, Enrico ; Santoyo, Ray L.
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

Influence of equal-channel angular extrusion on impact toughness of aluminum and brass at room and low temperatures [PDF]

open access: yesInternational Journal of Mechanical and Materials Engineering, 2014
Abstract Background Equal-channel angular extrusion is a severe plastic deformation process that can be used for grain refinement to improve material properties of bulk metals. In this paper, the effect of equal-channel angular extrusion on the impact toughness of aluminum 1100 and brass C26000 was investigated.
Wang, Jyhwen   +3 more
openaire   +1 more source

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