Conclusions
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1.
Quenching alloys type Kh13N36M5TYuBR with 2–4% W at the optimal temperature (1050°C) ensures sufficiently fine grain, good ductility, practically the maximal degree of supersaturation of the solid solution.
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2.
The optimal aging regime (750°C 5–8 h) does not depend on the tungsten content of the alloys. The absolute magnitude of strengthening increases with the lowering of the quenching temperature to 1000°C, but at the same time ductility is impaired.
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3.
When tungsten is added to austenitic alloys, the degree of their strengthening increases and so does their resistance to relaxation. When tungsten is added to this type of alloy, their resistance to relxation is increased at temperatures up to 450°C whereas an alloy without tungsten is stable up to 350°C. Alloy Khl3N36M5V4TYuBR has better ductile properties than alloy 36NKhTYuM8.
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Literature cited
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D. A. Prokoshkin, A. E. Chelyshev, and V. N. Klimov, "Investigation of a dispersionhardening alloy type 13–36 intended for elastic elements of instruments," Trudy MVTU im N. É. Bauman, No. 214, 117 (1976).
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Additional information
N. É. Bauman Moscow Technical University. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 3, pp. 36–40, March, 1989.
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Larkin, V.A., Rakhshtadt, A.G. Effect of tungsten on the properties of austenitic dispersion-hardening spring alloys. Met Sci Heat Treat 31, 207–211 (1989). https://doi.org/10.1007/BF00715829
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DOI: https://doi.org/10.1007/BF00715829