Results 31 to 40 of about 21,622 (287)

Polypropylene Composites with Ultrahigh Low-Temperature Toughness by Tuning the Phase Morphology

, 2022
To broaden the potential application of isotactic polypropylene (iPP) in low-temperature conditions, iPP/0.1 wt % β-nucleated agent/30 wt % ethylene–octene multiblock copolymer (iPP/0.1 wt % β-NAs/30 wt % olefin block copolymer (OBC)) blends were endowed
Weilong Xia (13919236), Zhongguo Zhao (13919233), Yanhui Chen (218375), Lijun Quan (560152), Penghui Zhang (661086), Qian Fan (425325), Dahang Tang (13919239), Shengtai Zhou (8148087)   +7 more
core   +1 more source

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

Metals
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, Han Zhang, Wenle Liu, Xuelin Wang, Chengjia Shang   +4 more
doaj   +1 more source

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

High 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, Li Qingchun, Sun Ming, Song Jiajian, Sun Haiqing, Chang Guowei   +5 more
doaj   +1 more source

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

Applied 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, Konstantin Grigorievich Vorkachev, Vyacheslav Aleksandrovich Bozhenov, Konstantin Aleksandrovich Solntsev   +3 more
doaj   +1 more source

Speed and Temperature Effects in the Energy Absorption of Axially Crushed Composite Tubes

, 2008
Tubes of glass reinforced thermosetting resins have been tested in axial compression between steel platens with one end chamfered to prevent critically high loads causing catastrophic centre failure.

core   +2 more sources

Tempforming as an Advanced Processing Method for Carbon Steels

Metals, 2020
The microstructural mechanisms providing delamination toughness in high-strength low-alloyed steels are briefly reviewed. Thermo-mechanical processing methods improving both the strength and impact toughness are described, with a close relation to the ...
Anastasiya Dolzhenko, Rustam Kaibyshev, Andrey Belyakov   +2 more
doaj   +1 more source

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

Journal 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, Hyun Seop Shin, Ki Tae Park   +2 more
openaire   +1 more source

Effect of welding thermal cycles on the heat affected zone microstructure and toughness of multi-pass welded pipeline steels [PDF]

, 2012
This research is aimed at understanding the effect of thermal cycles on the metallurgical and microstructural characteristics of the heat affected zone of a multi-pass pipeline weld. Continuous Cooling Transformation (CCT) diagrams of the pipeline steel
Nuruddin, Ibrahim K.
core  

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Effect of microstructure on the impact toughness transition temperature of direct-quenched steels [PDF]

, 2019
A sufficient level of toughness at low temperatures is paramount for the use of structural steels intended for arctic applications. Therefore, it is important for the steel industry to identify the factors that control brittle fracture toughness. In this
Kaijalainen, Antti, Kömi, Jukka, Porter, David, Zhang, Zhiliang, Pallaspuro, Sakari, Mehtonen, Saara   +5 more
core   +1 more source