Razušenie materialov pri dinamičeskom kontaknom nagruženii

• Autorzy: Bogdanovič P. , Tkačuk D. , Bliznec D.

Warianty tytułu

EN

Failure of materials at dynamic contact loading

• Języki publikacji: RU

Abstrakty

EN

The paper reports data on the kinetics, failure mechanism, and wear rate of silicate glass and sapphire in high-speed abrasive machining. Regularities of the effect of the load the velocity of abrasive particle movement, and the duration of the cutting of sapphire and the diamond monocrystal on temperature fields in the cutting zone and adjacent areas are discussed. I is shown that at high velocities me maximal surface temperature position shifts outside the contact site and temperature stresses cause the thermal cracking of sapphire and glass in this zone. When cutting a diamond monocrystal the temperature in the cutting zone can reach values sufficient for its local graphitization to occur.

Słowa kluczowe

EN

failure of materials; dynamic; silicate glass; sapphire

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2007
• Tom: Vol. 1, no. 1
• Strony: 15--18
• Opis fizyczny: Bibliogr. 4 poz., il., rys., wykr.

Twórcy

autor

Bogdanovič P.

autor

Tkačuk D.

autor

Bliznec D.

• Belorusskij gosudarstrennyj transporta, ul'. Kirova 34, 246653, Gomel', Belarus',

Bibliografia

• 1. Дурасов В.М. (1964), О некоторых физических процессах, происходящих при механической обработке алмазов, Сб. тр. ВНИИГознака, № 5, 33 – 34.
• 2. Petrokovets M.I., Bogdanovich P.N., Tkachuk D.V. (1998), Thermal instability of friction pairs, Problemy Eksploatacji, V. 30, № 3, 189–198.
• 3. Bogdanovich P.N., Tkachuk D.V. (2001), The influence of overlapping factor on temperature field in friction units, Tribologia, № 2, 191 – 199.
• 4. Лоладзе Т.Н., Бокучава Г.В. (1967), Износ алмазов и алмазных кругов, Москва.