ANALYSIS OF CONDITION RELATED TO HIGHTEMPERATURE DEFORMATION OF HIGH-MELTING METALS

An investigation was made of the high-temperature deformation of some high-melting metals in order to learn about the conditions of their processing by pressure. The researches were conducted on a laboratory vacuum unit which enabled one to heat, roll, and cool metal in a vacuum (up to .00001 on the...

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Bibliographic Details
Main Authors: ORZHEKHOVSKII,V L, Pavlov,I M, Gurevich,Ya B
Format: Report
Language:English
Subjects:
ARGON
CONTROLLED ATMOSPHERES
DEFORMATION
HARDNESS
HIGH TEMPERATURE
MOLYBDENUM
NIOBIUM
PLASTIC PROPERTIES
PRESSURE
REFRACTORY METALS
ROLLING(METALLURGY)
TITANIUM
USSR
VACUUM APPARATUS
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Summary:An investigation was made of the high-temperature deformation of some high-melting metals in order to learn about the conditions of their processing by pressure. The researches were conducted on a laboratory vacuum unit which enabled one to heat, roll, and cool metal in a vacuum (up to .00001 on the Hg column), an atmosphere of protecting gas (argon) and the air. The rolling was done on a duo mill at the rate of about 6 m/min. Rollers of the diameter of 85 mm were prepared out of XhKh 15 steel (hardness HV = 450--500 kg/sq mm). In the course of the process there were measured the overall pressure of the metal on the rollers, the speed of the rollers, and the rate of the output of the strip. There were rolled in the rolling-mill way pure molybdenum and niobium with relative reductions respectively of 25 and 20% in the interval of 1,000-1,250C. Parallelly there was rolled technically (as in industry) pure titanium of the brand VT1 with relative reduction of 30% in the interval of 800--1,200C. Unedited rough draft trans. of Izvestiya Vysshikh Uchebnykh Zavedenii. Chernaya Metallurgiya (USSR) 1963, v. 6, no. 9, p. 88-91.