Download Quenching and cooling, residual stress and distortion by Narazaki Michiharu Canale Lauralice PDF

By Narazaki Michiharu Canale Lauralice

"Fifty-nine peer-review papers concentrate on a variety of concerns with regards to quenching and cooling, residual pressure, and distortion regulate of ferrous and non-ferrous metals. themes hide: warmth move ; Modeling and Simulation ; Distortion and Residual Stresses ; estate Predictions ; Quenchants and Quenching ; gasoline Quenching ; Hardenability ; Cooling Curve research Methodologies ; Dilatometric Analysis."--Publisher's Read more...

content material: warmth move --
Modeling and simulation --
Distortion and residual stresses --
estate predictions --
Quenchants and quenching --
gasoline quenching --
Hardenability --
Cooling curve research methodologies --
Dilatometric analysis.
summary: "Fifty-nine peer-review papers specialize in numerous matters concerning quenching and cooling, residual rigidity, and distortion keep an eye on of ferrous and non-ferrous metals. themes disguise: warmth move ; Modeling and Simulation ; Distortion and Residual Stresses ; estate Predictions ; Quenchants and Quenching ; gasoline Quenching ; Hardenability ; Cooling Curve research Methodologies ; Dilatometric Analysis."--Publisher's web site

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Factors Affecting the Quenching Process Quenching of steel in heat treatment is influenced by the material characteristics and quench medium. The function of the quench medium is to enhance heat transfer rates from hot metal during the quenching process. Heat transfer rate during quenching of metal parts is dependent on both quenchant and work-piece factors ͓12͔. The most important factors affecting the quenching process of work-piece are listed below. Work-Piece Temperature Work-piece temperature has relatively little effect on its heat transfer rate and its properties.

Stages of Quenching Heat transfer during quenching of hot metal parts is controlled by different cooling mechanisms, as shown in Fig. 1 which is the conventional log-log representation of heat flux and wall superheat ͓5͔. Tw and Tsat are the wall and saturation temperatures, respectively. During quenching in liquid media, the following stages with significant change in heat transfer occur ͓6͔. 1. Initial liquid contact stage/shock film boiling. 2. The vapor blanket stage/film boiling stage. 3. Nucleate boiling stage.

Heat Transfer Vol. 125, 2003, pp. 926 935. ͓11͔ Park, J. , Childs, K. , Ludtka, G. , Correction of Errors in Intrinsic Thermocouple Signals Recorded During Quenching,Ó Proc. ASME National Heat Treat Conference, Minneapolis, MN, July 26 31, 1991. , and Wells, M. , Effect of Subsurface Thermocouple Installation on the Discrepancy of the Measured Thermal History and Predicted Surface Heat Flux during a Quench Operation,ÓMetall. Mater. Trans. B, Vol. 36B, 2005, pp. 343 354. , and Wells, M. , A Compensation Method for the Disturbance in the Temperature Field Caused by Sub-Surface Thermocouples,ÓMetall.

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