Results 221 to 230 of about 72,501 (254)

Heat affected zone COD testing

Theoretical and Applied Fracture Mechanics, 1986
Abstract The paper focusses on additional COD test validity criteria which are seen as necessary to ensure the accurate assessment of heat affected zone toughness. Theoretical considerations indicate that it is necessary for the COD notch to intersect the heat affected zone for at least 8% of the specimen thickness in order to ensure accurate ...
G. Kohler, R. Whitfield, C. Chipperfield
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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
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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
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Heat Affected Zone in Grinding Operations

1974
The temperature rise, due to the passage of a grinding wheel, may have detrimental effects on the surface integrity of the outermost layers of the ground workpiece. In this contribution, a comparison has been made of various models, worked out for evaluating the heat affected zone.
M. Maris, R. Snoeys
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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
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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
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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
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Heat Affected Zone in the MEMS Wire Bonding

2009 International Conference on Measuring Technology and Mechatronics Automation, 2009
In the wire bonding process of MEMS packaging, Heat Affect Zone (HAZ) is the important factor governing the loop profile of bonding. The height of loop is affected by the length of the HAZ. Factors governing the HAZ are studied. To investigate this relationship, the experiments were done for the various sizes of wire diameter and Free Air Ball (FAB ...
Yuetao Liu, Yanjie Liu, Lining Sun
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Characteristics of GTA fusion zones and heat affected zones in superalloy 713C

Materials Science-Poland, 2012
In this paper, metallographic examinations, characterising microstructural changes in the 713C superalloy subjected to remelting by GTA method, are presented. In the fusion zone, precipitation of M23C6 or M6C carbides based on chromium and molybdenum was observed.
M. B. Lachowicz, W. Dudziński
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Dispersoid-free zones in the heat-affected zone of aluminum alloy welds

Metallurgical and Materials Transactions A, 2000
The local microstructure in the heat-affected zone 1 (HAZ1) of a laser beam-welded Al-Mg-Si-Cu aluminum alloy is investigated closely. Dispersoid-free zones (DFZs), where the dispersoids of the base material (BM) are dissolved, are found in the vicinity of the fusion line (FL).
B. C. Meyer, G. Tempus, H. Doyen, D. Emanowski, T. Hirsch, P. Mayr   +5 more
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