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- Title
TRIBOLOGICAL CHARACTERISTICS OF AUSTEMPERED DUCTILE IRONS WITH NANOSIZED ADDITIVES.
- Authors
KALEICHEVA, J.; MISHEV, V.; KARAGUIOZOVA, Z.
- Abstract
The samples of austempered ductile irons (ADI) with nanosized particles of TiC-N+ TiN, TiN and cBN are investigated. The austempering mode consists of heating at 900°С, 1 h and isothermal retention at 380°С, 2h. The obtained structure of the upper bainite is examined by an optical metallographic microscope GX41 OLIMPUS. SEM and EDX analyses of cast samples with nanosized particles are performed. Wear test is carried out of ADI samples on thumb-disc circuit during friction on the fixed abrasive. The influence of nanoadditives on the tribological characteristics, hardness and microstructure of ADI is established.
- Subjects
NODULAR iron; NANOPARTICLES; OPTICAL microscopes; BAINITE; MICROSTRUCTURE; SLIDING wear
- Publication
Journal of the Balkan Tribological Association, 2019, Vol 25, Issue 2, p280
- ISSN
1310-4772
- Publication type
Article