Results 181 to 190 of about 510,005 (256)

Simulated Heat-Affected Zone of Steel 4330V

Materials Performance and Characterization, 2019
Abstract Steel 4330V is a material that contains an addition of vanadium (approximately 0.06 wt. %). The steel is widely used in the mining and petroleum industries. The steel microstructure contains tempered martensite. The high carbon equivalent of the steel makes it difficult to weld.
Marcin Żuk, Jacek Górka, Wojciech Jamrozik   +2 more
openaire   +1 more source

Sulphide stress cracking behaviour of the coarse-grained heat-affected zone in X100 pipeline steel under different heat inputs

, 2020
The sulphide stress cracking (SSC) behaviour of a simulated coarse-grained heat-affected zone was investigated under different heat inputs. The microstructure and fracture surfaces were observed. SSC susceptibility was dominated by hydrogen embrittlement
Y.D. Han, R.Z. Wang, H. Jing, L. Zhao, L.Y. Xu, P. Xin   +5 more
semanticscholar   +1 more source

Heat affected zones in polymer laser marking

Journal of Thermal Analysis and Calorimetry, 2013
Laser marking is based on the laser heating of the subjected material, the heating being below the melting temperature or thermal degradation starting point. Within and nearby the mark, the material is chemically, physically and mechanically affected.
Ionel Danut Savu, Sorin Vasile Savu, Nicusor Alin Sirbu   +2 more
openaire   +1 more source

Effect of laser shock peening on the microstructure and corrosion resistance in the surface of weld nugget zone and heat-affected zone of FSW joints of 7050 Al alloy

Optics and Laser Technology, 2019
Laser shock peening (LSP) was used to strengthen the surface properties of friction stir welding (FSW) joint for 7050-T7451 aluminium alloys. The microstructure, precipitates, dislocations and electrochemical corrosion properties in the surface of weld ...
Peng Liu, Siyu Sun, Jiaying Hu
semanticscholar   +1 more source

Recast layer and heat-affected zone structure of ultra-fined grained low-carbon steel machined by electrical discharge machining

, 2020
Ultra-fined grain materials are thermodynamically unstable and when they are exposed to a high external thermomechanical energy, such as electrical discharge machining process, many microstructural changes will occur in them.
M. S. Mahdieh
semanticscholar   +1 more source

Microstructure of intercritical heat affected zone and toughness of microalloyed steel laser welds

, 2020
Microstructure of laser welds of the X70 low-carbon pipe steel was studied. High cooling rates after laser welding and non-uniform distribution of carbon in the ferrite-pearlite base metal caused formation of regions with increased microhardness (up to ...
L. Derevyagina, A. Gordienko, А.М. Orishich, A. Malikov, N. Surikova, M. Volochaev   +5 more
semanticscholar   +1 more source

Heat Affected Zone Induced by Laser Forming

Volume 1, 2004
Laser forming induces mechanical and structural modifications around the Laser Scanning Path. Various conventional methods are currently available to estimate properties of materials like X-ray and neutron diffraction, strain/curvature measurement, hole drilling, layer removal, chemical etching, etc.
CASAMICHELE L, GISARIO, ANNAMARIA, TAGLIAFERRI V.   +2 more
openaire   +2 more sources

Prediction of residual stresses in the heat affected zone

Journal de Physique IV, 2004
In this paper the behavior of a disc made up of carbon manganese steel and subjected to an axisymmetric heating in its middle zone is considered. The applied thermal cycle generates localized metallurgical solid-solid phase transformations. Contrary to the study performed some years ago, the present work is concerned with relatively thick discs that ...
Petit-Grostabussiat, S., Taleb, L., Jullien, Jean-François   +2 more
openaire   +2 more sources

Analysis of heat affected zone (HAZ) during micro-drilling of a new hybrid composite

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020
In the present work, laser beam drilling of a fabricated basalt–glass hybrid composite has been done. From the experimental results, a safe machining zone pertaining to high drill quality with minimum heat affected zone and maximum hole-circularity has ...
Akshay Jain, Bhagat Singh, Y. Shrivastava   +2 more
semanticscholar   +1 more source

Prediction of heat-affected zone using Grey theory

Journal of Materials Processing Technology, 2002
Abstract The amount of deformation and the residual stress, which influence welded plates, are related directly to three aspects of the welding process: the method of heat input; the welding speed and the geometrical conditions; limitations of the weldment.
Hsing-Chia Kuo, Li-Jen Wu
openaire   +1 more source