Results 321 to 330 of about 706,935 (403)

Hardness Profiles of Quenched Steel Heat Affected Zones

Materials Science Forum, 2013
This paper reports the effects of chemical composition on the hardness of the heat affected zone of re-austenitized and water quenched steels. Heat affected zone peak temperatures in the range 300–1350 °C were simulated using a Gleeble 3800 simulator using thermal cycles appropriate to welds with cooling times between 800 and 500 °C of 12s. The maximum
S.J. Heikkilä, David A. Porter, L. Pentti Karjalainen, Risto O. Laitinen, S.A. Tihinen, Pasi Suikkanen   +5 more
openaire   +1 more source

Heat Affected Zone in Microwave Polymer Welding

Advanced Materials Research, 2016
This paper aims to present some specific aspects regarding the heat affected zone in microwave polymer welding. It presents several results of investigation of the physical and mechanical modification of the HDPE100 polymer when the microwave heating is applied.
Sorin Vasile Savu, Ionel Dănuț Savu, Gabriel Constantin Benga   +2 more
openaire   +1 more source

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

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

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

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

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

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

Fatigue crack propagation through weld heat affected zones

Metallurgical Transactions, 1971
Fatigue tests were performed on specimens containing weld heat affected zones at two orientations to the stress axis. Two heat affected zones were studied, one in Ducol W30 (a low alloy steel) and the other in mild steel. Under conditions of constant alternating and maximum stress intensity a fatigue crack only propagated at a uniform rate when it was ...
K. R. Dowse, C. E. Richards
openaire   +1 more source