Results 201 to 210 of about 7,180 (259)

Process Control for Thermomechanical Pulping

IFAC Proceedings Volumes, 1983
Abstract The pulp and Paper industry is snowing increasing interest in a pulping process known as Tnermo-mechanical Pulping - or TMP for snort. In one example of this process wood chips are “refined” to wood pulp directly by mechanical and thermodynamic forces set up between the contra-rotating plates of a so-called TMP Refiner. In the purest form of
R.E. Jones, A. Pila
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Thermomechanics of Biomaterials Freezing Process

Advances in Heat and Mass Transfer in Biological Systems, 1994
Abstract Large volumetric expansion during freezing of biomaterial, combined with phase change over a temperature range leads to thermal stresses and fractures. A viscoelastic model was used to analyze the transient symmetric freezing of a long cylinder (plain strain problem).
XiaoLan Shi, Yu Xie Mukherjee, Ashim K. Datta, Susan G. Capps   +3 more
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Thermomechanical Processing beta Titanium

1973
Abstract : on polygonized structures, the effects of cold-reduction temperature, and multi-stage aging. Combinations of strength and ductility can be manipulated within a wide range by varying the amount of cold work and the aging treatment. Mechanical properties are strongly dependent upon the mode of deformation during cold working and slight ...
Ned W. Polan, Donald H. Avery
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Thermomechanical Processing of Thixomolded Alloys

2017
A wide variety of Mg alloys have been processed by Thixomolding ® followed by thermomechanical processing (TMP)—to increase tensile, creep and fatigue strength, ductility and formability. These alloys encompass variations in Al, Zn, Ca, Mn, Sr, Y, Zr and Rare Earths (RE) in the Mg base.
Raymond Decker, Stephen LeBeau, Tracy Berman, Tori Miller, J. Wayne Jones, Tresa Pollock, Nir Moskovich, Boris Bronfin   +7 more
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Thermomechanical processing of 42CrMoS4 steel

International Heat Treatment and Surface Engineering, 2010
AbstractBillets of 42CrMoS4 steel were subjected to a programme including forging and rolling to different reduction ratios, followed by quenching and tempering to simulate online thermomechanical treatment (TMT) during rolling. The mechanical properties obtained were compared with those obtained by conventional heat treatment (CHT) (quenching from 860°
M. Nabil, O. Taha, T. Elbitar, I. El Mahallawi   +3 more
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Thermomechanical Processing of Aluminium Alloys

1998
Over 50% of the aluminium alloys produced by industry undergo subsequent mechanical working and annealing (thermomechanical processing or TMP), in order to produce a fmished or semi-fmished product. This type of processing is also important for many other metals, e.g. the forging of nickel and titanium alloys for aerospace applications, and is becoming
F. J. Humphreys, G. W. Lorimer
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Thermomechanical Processing of Ferrous Alloys

2005
Abstract Thermomechanical processing (TMP) refers to various metal forming processes that involve careful control of thermal and deformation conditions to achieve products with required shape specifications and good properties. This article describes TMP methods in producing hot-rolled steel and reviews how improvements in the strength ...
P. Manohar, M. Ferry
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Thermomechanical Processing of Ferrous Alloys

1978
Thermomechanical treatments have demonstrated great promise for increasing the strength and other mechanical properties of ferrous alloys. Various types of thermomechanical treatments can be defined, depending on the position in the heat-treatment cycle where the deformation is introduced. The characteristics of various treatments are briefly described.
E. B. Kula, M. Azrin
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Modeling thermomechanical processing of austenite

Journal of Materials Processing Technology, 2003
Abstract This work is divided into two parts. First, a mathematical modeling of the austenite transformation during deformation operations at high temperature is presented. The model introduced by Estrin, Mecking and Bergstrom is employed in predicting the dynamic recovery step while the additional softening by dynamic recrystallization is modeled ...
J.M. Cabrera, J. Ponce, J.M. Prado
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Kinetics of austenite transformation during thermomechanical processes

Canadian Metallurgical Quarterly, 1998
Abstract One of the most important fundamental problems of thermomechanical processing (TMP) of steel is the transformation kinetics of deformed austenite, which has a great influence on the final microstructure and mechanical properties. In the present work, the results of more than 20 years systematic study of deformation effects on the ferrite ...
V. M. Khlestov, E. V. Konopleva, H. J. Mcqueen   +2 more
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