SCIENCE INTENSIVE TECHNOLOGY APPLICATION FOR PERFORMANCE ATTRIBUTES INCREASE OF ALLOY HIGH-PRECISION PARTS AT EXPENSE OF ALLOY ELEMENT NITRIDES
Abstract and keywords
Abstract (English):
A science intensive chemical-thermal processing in air-ammonia environment allowing the formation a wear-resistant layer on high-precision alloy steel parts surfaces at the expense of nitrides of alloy elements is considered. The results of micro-hardness distribution throughout a layer thickness are shown. The advantage of the process considered in comparison with common nitride hardening is shown.

Keywords:
high-precision parts, alloy steel, wear-resistance, micro-hardness, air-ammonia environment
Text
Publication text (PDF): Read Download
References

1. Lakhtin, Yu.M., Kogan, Ya.D. Steel Nitride Hardening. - M.: Mechanical Engineering, 1976. - pp. 256.

2. Lakhtin, Yu.M. Oxy-nitride Hardening (Nitrooxynitride Hardening) // MiTOM. - 1994. - No.9. - pp. 2-5.

3. Shestopalova, L.P. Regularities in Interaction of Con-trolled Oxidative Media with Metals and Alloys and Their Im-pact upon Formation of Modified Layer at Nitride Hardening // MiTOM. - 2010. - No.5. - pp-52.

4. Mirdel, G. Electro-physics / transl. from German. Under the editorship of V.I. Rakhovsky. - M.: Mir, 1972. - pp. 608.

5. Samsonov, G.V., Vinitsky, I.M. Refractory Compounds: reference book. - M.: Metallurgy, 1976 - pp. 556.

6. Lakhtin, Yu.M., Kogan, Ya.D. Structure and Strength of Nitrided Alloys. - M.: Metallurgy, 1982. - pp. 160.

7. Yakhnina, V.D., Nikitin, V.V. Hardness formation in nitrided layer // Metallurgy and Thermal Treatment of Metals. - 1975. - No.2. - pp. 28-32.

8. Edenhafer B. Einfluss der Nitrierdauern und der Stahl-russammensetzung auf die Hexte von Nitrierschicsten / B. Edenhafer, H. Trenkler. // Harter.- Nechnish. Mitt., 1980, v. 35, №5. pp. 220-229.

9. Kosolapov, G.F., Gerasimov, S.A. On structure of ɑ-phase of nitride layer of steel 38HMYuA and 1H13 // Metal-lurgy and Thermal Treatment of Metals. - 1973. - No.5 - pp. 71-72.

10. Shestopalova, L.P., Petrova, L.G. Exceeding operational characteristic of chromium steels after oxynitride hardening in controlled medium // Science Intensive Technologies in Mechanical Engineering. - 2013. - No.9(27). - pp. 3-11.

Login or Create
* Forgot password?