Results 331 to 340 of about 688,148 (407)

Heat Affected Zone Softening Susceptibility Test

Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, 2020
Abstract There have been a number of unexpected girth weld failures in pipelines, both in-service and during pre-service hydrostatic testing. Investigation of these incidents indicated that the line pipe met industry standard requirements, such as API 5L and the welding procedures had been qualified to API 1104 and construction welding ...
R. Lazor, D. Begg, A. Dinovitzer, M. Quintana   +3 more
openaire   +2 more sources

Microstructural investigations on simulated intercritical heat-affected zone of boron modified P91-steel

Materials Science and Technology, 2020
Conventional P91 and boron modified P91-steels were considered in the present investigation. Using Gleeble, weld intercritical heat-affected zone (ICHAZ) was processed.
A. Khajuria, M. Akhtar, R. Bedi, Rajneesh Kumar, M. Ghosh, C. Das, S. Albert   +6 more
semanticscholar   +1 more source

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   +3 more sources

Heat-Affected Zones in Grinding Steel

CIRP Annals, 1994
Summary Two well known forms of metallurgical damage of ground surfaces involve untempered and overtempered martensite. Both of these forms of metallurgical damage involve martensitic transformations. This paper reviews the nature of such transformations and the special characteristics that pertain in grinding where the time at temperature before ...
A. Vyas, Milton C. Shaw
openaire   +2 more sources

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, C. Chipperfield, R. Whitfield
openaire   +2 more sources

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.
Ionel Danut Savu, Sorin Vasile Savu, Gabriel Constantin Benga   +2 more
openaire   +2 more sources

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

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 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.
Sorin Vasile Savu, Nicusor Alin Sirbu, Ionel Danut Savu   +2 more
openaire   +2 more sources

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   +2 more sources