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- Title
CALCULATION OF FATIGUE LIFE OF CYLINDRICAL PARTS AT MULTILAYER SURFACING AND SERVICE CYCLIC THERMOMECHANICAL LOADING.
- Authors
SENCHENKOV, I. K.; CHERVINKO, O. P.; RYABTSEV, I. A.
- Abstract
Procedure was developed for calculation of residual stress-strain and microstructural state of cylindrical part at multilayer surfacing aver lateral surface as well as calculation of its thermomechanical state and fatigue life in further service cyclic thermomechanical loading. The procedure was developed in scope of common mathematical model based on theory of growing bodies, current model of viscoplastic non-isothermic flow, thermokinetic diagrams of decay of austenite, deposited and base metals considering residual stressstrain and structural state in single- and multilayer surfacing of parts by layers of different chemical composition, structure and thickness. It allows evaluating the fatigue life of deposited parts depending on value and relationship of service cyclic thermal and mechanical loads and on consumables applied for sublayer and wear-resistant layer.
- Subjects
FATIGUE (Physiology); THERMOMECHANICAL treatment; WEAR resistance
- Publication
Paton Welding Journal, 2015, Issue 5/6, p134
- ISSN
0957-798X
- Publication type
Article
- DOI
10.15407/tpwj2015.06.30