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Heat Affected Zone Induced by Laser Forming
Volume 1, 2004Laser 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 +2 more
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Heat Affected Zone in the MEMS Wire Bonding
2009 International Conference on Measuring Technology and Mechatronics Automation, 2009In 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 ...
Lining Sun, Yanjie Liu, Yuetao Liu
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Hardness Profiles of Quenched Steel Heat Affected Zones
Materials Science Forum, 2013This 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
Sakari Tihinen +5 more
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Small Punch test for weld heat affected zones
Materials at High Temperatures, 2006AbstractSmall Punch tests (SPT) have been performed on four different zones of P91 welded joint, namely the base metal (BM), the weld metal (WM), the heat affected zone at base metal side (HAZ-BM) and the heat affected zone at weld metal side (HAZ-WM).
Roman Šturm, Yingzhi Li
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Prediction of tensile properties of intercritical heat affected zone
Materials Science and Technology, 1994AbstractThe tensile properties of the intercritical heat affected zone of structural steels have been examined using the weld thermal simulation technique. The investigation includes one normalised C–Mn steel, one normalised and one rapidly cooled low carbon microalloyed steel, and two quenched and tempered high strength low alloy steels.
A. O. Kluken, G. Rørvik, O. M. Akselsen
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Heat Affected Zone in Grinding Operations
1974The 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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Characteristics of GTA fusion zones and heat affected zones in superalloy 713C
Materials Science-Poland, 2012In 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.
W. Dudziński, M. B. Lachowicz
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Dispersoid-free zones in the heat-affected zone of aluminum alloy welds
Metallurgical and Materials Transactions A, 2000The 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 +5 more
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Study in Simulated Heat-Affected Zone of Ship Steel
Advanced Materials Research, 2011The experiments were carried out upon the determination of simulated heat-affected zone continuous cooling transformation (SH-CCT) diagrams, the characteristics of microstructure and Vickers hardness of SH-CCT specimens, and impact toughness in simulated coarse grain heat-affected zone (CGHAZ) of ship steels under different heat input based on physical
Wen Yan Liu +3 more
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INVESTIGATION OF HEAT-AFFECTED ZONES OF THERMITE RAIL WELDINGS
Facta Universitatis, Series: Mechanical EngineeringThe paper investigates the heat-affected zone (HAZ) of several rail joints executed by thermite rail welding (TW). The examined rail profile was 54E1 (UIC54). The rail steel categories were different: R260 and R400HT.
S. Fischer +6 more
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