Surface vitrification of alloys by laser surface treatment

被引：36

作者：

Chen, Bingqing ^{[1
]}

Li, Yan ^{[1
]}

Cai, Yan ^{[2
]}

Li, Ran ^{[1
]}

Pang, Shujie ^{[1
]}

Zhang, Tao ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China

[2] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 511卷 / 01期

关键词：

Laser; Metallic glasses; Microstructure; Glass-forming ability; Thermal simulation; BULK METALLIC-GLASS; MECHANICAL-PROPERTIES; FORMING ABILITY; AMORPHOUS-ALLOY; SUPERCOOLED LIQUID; CU ALLOYS; NI; STRENGTH; SYSTEMS; LAYERS;

D O I：

10.1016/j.jallcom.2011.09.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

With laser surface treatment (LST) method, the surfaces of Zr-, Cu-, Fe- and Al-based alloys were melted and amorphous or amorphous-crystalline composite structures were synthesized, which were related to the different glass-forming ability of the alloys. Influences of laser processing parameters on glass formation for Cu(60)Zr(30)Ti(10) alloy were investigated and the laser treated alloy exhibited a gradient structure: amorphous surface, amorphous-crystalline composites transitional region and crystalline substrate. Temperature distributions and thermal profiles of the treated Cu(60)Zr(30)Ti(10) alloy during the laser process were simulated using finite volume method. The formation mechanism of the gradient structure is discussed based on the experimental and simulated results. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：215 / 220

页数：6

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