Fractographic Analysis of Fractures of Cast Bimetallic Pistons of a Powerful Internal Combustion Engine

被引：0

作者：

Ganiev, M. M. ^{[1
]}

Murataev, A. F. ^{[2
]}

机构：

[1] Kazan Fed Univ, Naberezhnye Chelny, Kazan, Republic Of Tat, Russia

[2] Kazan Natl Res Technol Univ, Soyuzkhimpromproekt Project Inst, Kazan, Republic Of Tat, Russia

来源：

JOURNAL OF MACHINERY MANUFACTURE AND RELIABILITY | 2024年 / 53卷 / SUPPL2期

关键词：

destruction of reinforced pistons of ICE; dissimilar alloys; casting defects;

D O I：

10.1134/S1052618824701498

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The features of brittle fracture of pistons in an internal combustion engine (ICE) of a combined metal have been determined: aluminum cast alloy reinforced with a bandage insert of heat-resistant cast iron. Fractographic analysis of fractures reveals defects in the fusion of the base metal of the pistons and the embedded bandage ring. The cause of the incident is due to the constraint of significant temperature-force deformations during thermal cyclings of a dissimilar metal with different thermal-physical properties and an unsuccessful shape of the cast iron insert. It is complex in nature, combining a low level of piston design and the manufacturing of reinforced castings, in which, during operation, high temperature stresses occur in the metal of the piston and the embedded part.

引用

页码：S263 / S267

页数：5

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