FINITE-ELEMENT PLANE MODEL OF THERMAL CONDITIONS IN SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS OF BLANKS IN A FRIABLE SHELL
A. P. Amosov and A. F. Fedotov UDC 621.1.016.4 A two-dimensional problem of nonstationary heat conduction in a system of three bodies of finite size with an inner movable source of the first kind (combustion front) has been solved by a finite-element method. The effect of different factors on the parameters of a temperature field in self-propagating high-temperature synthesis pressing of alloys of a Ti-C-Ni system has been studied. It is found that a regime of internal cooling is realized in the synthesis products, when the temperature of the contact surface behind the combustion front remains constant and evens out over the volume of a blank. In the regime of internal cooling, the material has the highest plasticity and compactibility. Samara State Technical University, Samara, Russia; email: mvm@dp.sstu.samara.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 5, pp. 160-166, September-October, 2001. Original article submitted December 18, 2000; revision submitted February 23, 2001. JEPTER7492020018 JEPTER749208