Investigations on ablation for highly-intensified diesel engine piston material

Investigations on ablation for highly-intensified diesel engine piston material

With the improvement of the degree of diesel engine enhancement, the thermal load of the piston is greatly increased, and higher requirements is imposed on the ablation resistance of the piston material. Three kind of piston materials were selected and the ablation performance was analyzed through e...

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Main Authors: Zhaoju Qin, Chuanfa Jia, Weizheng Zhang, Lijun Wang
Format: Article
Language:English
Published: Elsevier 2019-03-01
Series:Case Studies in Thermal Engineering
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X18302880
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spelling doaj-d8eb743aa7214055bbeb51f313a7eabf2020-11-24T22:05:11ZengElsevierCase Studies in Thermal Engineering2214-157X2019-03-0113Investigations on ablation for highly-intensified diesel engine piston materialZhaoju Qin0Chuanfa Jia1Weizheng Zhang2Lijun Wang3School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China; School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; Corresponding author.School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, ChinaWith the improvement of the degree of diesel engine enhancement, the thermal load of the piston is greatly increased, and higher requirements is imposed on the ablation resistance of the piston material. Three kind of piston materials were selected and the ablation performance was analyzed through experiments and simulation calculations, then the ablation mechanism and ablation model of piston materials were analyzed. Results revealed that Ablation mechanisms of piston material are melting ablation and gas flow erosion. Al-Si alloy materials have poor anti-ablative properties. Al2O3 f/Al-Si composites and aluminum borate whisker reinforced Al-Si matrix composites exhibited higher anti-ablation properties, which contributed by the dense structure and high yield strength at high temperature of the composites. Aluminum borate whisker reinforced Al-Si matrix composites has the best anti-ablative properties. Keywords: Diesel engine, Piston, Composite material, Micrograph, Ablative propertyhttp://www.sciencedirect.com/science/article/pii/S2214157X18302880
collection DOAJ
language English
format Article
sources DOAJ
author Zhaoju Qin
Chuanfa Jia
Weizheng Zhang
Lijun Wang
spellingShingle Zhaoju Qin
Chuanfa Jia
Weizheng Zhang
Lijun Wang
Investigations on ablation for highly-intensified diesel engine piston material
Case Studies in Thermal Engineering
author_facet Zhaoju Qin
Chuanfa Jia
Weizheng Zhang
Lijun Wang
author_sort Zhaoju Qin
title Investigations on ablation for highly-intensified diesel engine piston material
title_short Investigations on ablation for highly-intensified diesel engine piston material
title_full Investigations on ablation for highly-intensified diesel engine piston material
title_fullStr Investigations on ablation for highly-intensified diesel engine piston material
title_full_unstemmed Investigations on ablation for highly-intensified diesel engine piston material
title_sort investigations on ablation for highly-intensified diesel engine piston material
publisher Elsevier
series Case Studies in Thermal Engineering
issn 2214-157X
publishDate 2019-03-01
description With the improvement of the degree of diesel engine enhancement, the thermal load of the piston is greatly increased, and higher requirements is imposed on the ablation resistance of the piston material. Three kind of piston materials were selected and the ablation performance was analyzed through experiments and simulation calculations, then the ablation mechanism and ablation model of piston materials were analyzed. Results revealed that Ablation mechanisms of piston material are melting ablation and gas flow erosion. Al-Si alloy materials have poor anti-ablative properties. Al2O3 f/Al-Si composites and aluminum borate whisker reinforced Al-Si matrix composites exhibited higher anti-ablation properties, which contributed by the dense structure and high yield strength at high temperature of the composites. Aluminum borate whisker reinforced Al-Si matrix composites has the best anti-ablative properties. Keywords: Diesel engine, Piston, Composite material, Micrograph, Ablative property
url http://www.sciencedirect.com/science/article/pii/S2214157X18302880
work_keys_str_mv AT zhaojuqin investigationsonablationforhighlyintensifieddieselenginepistonmaterial
AT chuanfajia investigationsonablationforhighlyintensifieddieselenginepistonmaterial
AT weizhengzhang investigationsonablationforhighlyintensifieddieselenginepistonmaterial
AT lijunwang investigationsonablationforhighlyintensifieddieselenginepistonmaterial
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