Evolution of Al-Si-Cu alloy in piston of diesel engine during knock damage

被引：8

作者：

Bao, Tong ^{[1
]}

Li, Jianping ^{[1
]}

Liu, Lei ^{[1
]}

Li, Haiying ^{[2
]}

Yang, Zhong ^{[1
]}

Guo, Yongchun ^{[1
]}

Xia, Feng ^{[1
]}

Yang, Wei ^{[1
]}

Tao, Dong ^{[1
]}

Zheng, Jiaqi ^{[1
]}

机构：

[1] Xian Technol Univ, Mat & Chem Engn Sch, Xian 710021, Peoples R China

[2] China North Engine Res Inst Tianjin, Tianjin 300400, Peoples R China

来源：

ENGINEERING FAILURE ANALYSIS | 2020年 / 112卷

关键词：

Abnormal combustion; Piston; Failure analysis; Knock damage mechanisms; DEPOSIT FORMATION; PRE-IGNITION; COMBUSTION; EMISSIONS; PERFORMANCE; OIL;

D O I：

10.1016/j.engfailanal.2020.104501

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The failure mechanisms of Al-Si-Cu alloy in piston of diesel engine due to abnormal combustion are not fully understood at present. In this paper, the bench test of the original piston was carried out, which induced knock combustion by monitoring of the pressure signal in the cylinder. The results show that the failure process mainly includes the erosion damage of the original passive film and the subsequent peeling of the surface material which was proved by XRD, optical and scanning electron microscopy, 3D confocal laser scanning microscope and other research methods. During erosion damage, carbon deposit on the crown of piston react with the surface of the aluminum matrix to form brittle phase (Al4C3 and Al2O3). In addition, the residual hardness in the cross section of the damage zone decreases significantly as the ablation level increases.

引用

页数：16

共 22 条

[1] Effect of Exhaust Gas Recirculation (EGR) on performance, emissions, deposits and durability of a constant speed compression ignition engine [J].

Agarwal, Deepak ;

Singh, Shrawan Kumar ;

Agarwal, Avinash Kumar .

APPLIED ENERGY, 2011, 88 (08) :2900-2907

[2] A core correlation of spray characteristics, deposit formation, and combustion of a high-speed diesel engine fueled with Jatropha oil and diesel fuel [J].

Anh Tuan Hoang ;

Anh Tuan Le ;

Van Viet Pham .

FUEL, 2019, 244 :159-175

[3] Knock induced erosion on Al pistons: Examination of damage morphology and its causes [J].

Balducci, E. ;

Ceschini, L. ;

Rojo, N. ;

Cavina, N. ;

Cevolani, R. ;

Barichello, M. .

ENGINEERING FAILURE ANALYSIS, 2018, 92 :12-31

[4] Analysis of pre-ignition combustions triggered by heavy knocking events in a turbocharged GDI engine [J].

Cavina, Nicolo ;

Rojo, Nahuel ;

Businaro, Andrea ;

Ceschini, Lorella ;

Balducci, Eleonora ;

Cerofolini, Alberto .

71ST CONFERENCE OF THE ITALIAN THERMAL MACHINES ENGINEERING ASSOCIATION (ATI 2016), 2016, 101 :893-900

[5] Experimental observations of engine piston damage induced by knocking combustion [J].

Ceschini, Lorella ;

Morri, Andrea ;

Balducci, Eleonora ;

Cavina, Nicolo ;

Rojo, Nahuel ;

Calogero, Lucio ;

Poggio, Luca .

MATERIALS & DESIGN, 2017, 114 :312-325

[6] Investigation of lubricant induced pre-ignition and knocking combustion in an optical spark ignition engine [J].

Feng, Dengquan ;

Buresheid, Khalifa ;

Zhao, Hua ;

Wei, Haiqiao ;

Chen, Ceyuan .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2019, 37 (04) :4901-4910

[7] Thermo-mechanical fatigue damage and failure of modern high performance diesel pistons [J].

Floweday, G. ;

Petrov, S. ;

Tait, R. B. ;

Press, J. .

ENGINEERING FAILURE ANALYSIS, 2011, 18 (07) :1664-1674

[8] Laser surface cleaning of carbonaceous deposits on diesel engine piston [J].

Guan, Y. C. ;

Ng, G. K. L. ;

Zheng, H. Y. ;

Hong, M. H. ;

Hong, X. ;

Zhang, Z. .

APPLIED SURFACE SCIENCE, 2013, 270 :526-530

[9] Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel [J].

Hasannuddin, A. K. ;

Yahya, W. J. ;

Sarah, S. ;

Ithnin, A. M. ;

Syahrullail, S. ;

Sugeng, D. A. ;

Razak, I. F. A. ;

Abd Fatah, A. Y. ;

Aqma, W. S. ;

Rahman, A. H. A. ;

Ramlan, N. A. .

ENERGY, 2018, 142 :496-506

[10] Differences between PREMIER combustion in a natural gas spark-ignition engine and knocking with pressure oscillations [J].

Kawahara, Nobuyuki ;

Kim, Yungjin ;

Wadahama, Hisashi ;

Tsuboi, Kazuya ;

Tomita, Eiji .

PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2019, 37 (04) :4983-4991

← 1 2 3 →