Manufacturers constantly endeavor to introduce structural materials with improved performance. Currently, there is great interest in high-temperature alloys based on refractory metals. The operating conditions of numerous aerospace components call for materials elevated high-temperature strength and life [1, 2]. The only refractory metal meeting these requirements is chromium, along with its alloys. High-temperature stability is assured by the formation of a dense Cr_2O_3 oxide film on the surface of the material in oxidative media. Chromium alloys are also highly resistant to gas corrosion in the combustion products of sulfur-bearing fuel. At the same time, study of chromium alloys has been sparse. There is practically no information regarding chromium alloys in handbooks [1, 3-5] or in the periodicals that publish extensive information regarding the properties of high-temperature steel and alloys. Data are also lacking regarding the technological properties of the alloys - in particular, their ease of cutting, which is a very important technological characteristic. For most components, cutting is the final stage of machining; it ensures high precision (within tolerances of thousandths of a millimeter) and high surface quality (low roughness). In most cases, casting, pressure treatment, and welding do not ensure the required precision. Therefore, forgings, castings, and welded components serve as the blanks for subsequent cutting.
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