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mass transfer coefficient

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005824
EISBN: 978-1-62708-165-8
... characterization using hardening-power and cooling-power tests. The article discusses the fundamentals involved in heat-transfer coefficient and heat flux of quenching processes. This discussion is followed by various actual examples of applications of these methods using simplified equations. Quenchant evaluation...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005189
EISBN: 978-1-62708-187-0
... Constant related to hydrogen solubility in iron k m Mass transfer coefficient K m N Liquid-phase mass transfer coefficient K Equilibrium constant m , m ′ Solubility factors giving change in carbon solubility in Fe-C- X from unit mass addition of a third element M...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003605
EISBN: 978-1-62708-182-5
... and S. Nesic, Erosion- Corrosion in Single and Multiphase Flow, Ch 15 , in Uhlig's Corrosion Handbook , 2nd ed. , Revie R.W. , Ed., John Wiley and Sons, Inc. , 2000 36. Mahato B.K. , Cha C.Y. , and Shemilt L.W. , Unsteady State Mass Transfer Coefficients Controlling...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005192
EISBN: 978-1-62708-187-0
... ·s·atm, and the mass transfer coefficient, k m , is approximately 0.1 cm/s. The gas velocity, retention time, and surface area were estimated as done previously ( Ref 13 ). Equation 8 and 9 were solved simultaneously, and the results are given in Fig. 7 . The calculations demonstrate that the rate...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005799
EISBN: 978-1-62708-165-8
... process ( Ref 17 ). This phenomenon can be explained by significant reduction in the mass transfer coefficient from the gas atmosphere to the steel surface and lower total carbon flux entering the steel surface ( Ref 20 ). Similarly, while the presence of carbide-forming elements, such as chromium...
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