High-Current Pulsed Electron Treatment of Hypoeutectic Al-10Si Alloy

被引：9

作者：

Lu Diankun ^{[1
]}

Gao Bo ^{[1
]}

Zhu Guanglin ^{[1
]}

Lv Jike ^{[1
]}

Hu Liang ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China

来源：

HIGH TEMPERATURE MATERIALS AND PROCESSES | 2017年 / 36卷 / 01期

关键词：

high-current pulsed electron beam; hypoeutectic Al-Si alloy; wear resistance; 316L STAINLESS-STEEL; SURFACE-TREATMENT; BEAM TREATMENT; MICROSTRUCTURE; DEFORMATION;

D O I：

10.1515/htmp-2015-0092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reports, for the first time, an analysis of the effect of high-current pulsed electron beam (HCPEB) on a hypoeutectic Al-10Si alloy. The Al-10Si alloy was treated by HCPEB in order to see the potential of this fairly recent technique in modifying its wear resistance. For the beam energy density of 3 J/cm(2) used in the present work, the melting mode was operative and led to the formation of a "wavy" surface and the absence of mass primary Si phase and eutectic microstructure. The surface nanocrystallization of primary and eutectic Si phases led to the increase in macro-hardness of the top surface layer, and the wear resistance was drastically improved with a factor of 4.

引用

页码：97 / 100

页数：4

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