Microstructure evolution of a Zn-4wt.% Cu hyperperitectic alloy under laser surface remelting

Weidong Huang; Yunpeng Su; Meng Wang; Xin Lin

doi:10.4028/0-87849-960-1.2611

Microstructure evolution of a Zn-4wt.% Cu hyperperitectic alloy under laser surface remelting

Weidong Huang, Yunpeng Su, Meng Wang, Xin Lin

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Conference article › peer-review

Abstract

Laser surface remelting experiments on Zn-4.0wt.%Cu hyperperitectic alloy have been performed on a 5kW CW CO₂ laser with the scanning velocities between 6 and 1207mm/s. Microstructures in both longitudinal and transverse section of the molten pools have been analyzed by optical microscope and SEM technique, and the average composition in the molten pools has been measured by Electron Probe Microanalysis(EPMA). With the increasing of growth rate, the microstructures of Zn-4.0 wt.%Cu alloy change from planar interface to lamellar structures and then cellular structures, and finally to absolute stability planar interface at a growth rate of 562mm/s, which shows reasonable agreement with that predicted by M-S theory.

Original language	English
Pages (from-to)	2611-2614
Number of pages	4
Journal	Materials Science Forum
Volume	475-479
Issue number	IV
DOIs	https://doi.org/10.4028/0-87849-960-1.2611
State	Published - 2005
Event	PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: 2 Nov 2004 → 5 Nov 2004

Keywords

Absolute stability
Laser surface remelting
Microstructure evolution
Zn4.0wt.%Cu hyperperitectic alloy

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10.4028/0-87849-960-1.2611

Cite this

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title = "Microstructure evolution of a Zn-4wt.\% Cu hyperperitectic alloy under laser surface remelting",

abstract = "Laser surface remelting experiments on Zn-4.0wt.\%Cu hyperperitectic alloy have been performed on a 5kW CW CO2 laser with the scanning velocities between 6 and 1207mm/s. Microstructures in both longitudinal and transverse section of the molten pools have been analyzed by optical microscope and SEM technique, and the average composition in the molten pools has been measured by Electron Probe Microanalysis(EPMA). With the increasing of growth rate, the microstructures of Zn-4.0 wt.\%Cu alloy change from planar interface to lamellar structures and then cellular structures, and finally to absolute stability planar interface at a growth rate of 562mm/s, which shows reasonable agreement with that predicted by M-S theory.",

keywords = "Absolute stability, Laser surface remelting, Microstructure evolution, Zn4.0wt.\%Cu hyperperitectic alloy",

author = "Weidong Huang and Yunpeng Su and Meng Wang and Xin Lin",

year = "2005",

doi = "10.4028/0-87849-960-1.2611",

language = "英语",

volume = "475-479",

pages = "2611--2614",

journal = "Materials Science Forum",

issn = "0255-5476",

publisher = "Trans Tech Publications Ltd",

number = "IV",

note = "PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing ; Conference date: 02-11-2004 Through 05-11-2004",

}

TY - JOUR

T1 - Microstructure evolution of a Zn-4wt.% Cu hyperperitectic alloy under laser surface remelting

AU - Huang, Weidong

AU - Su, Yunpeng

AU - Wang, Meng

AU - Lin, Xin

PY - 2005

Y1 - 2005

N2 - Laser surface remelting experiments on Zn-4.0wt.%Cu hyperperitectic alloy have been performed on a 5kW CW CO2 laser with the scanning velocities between 6 and 1207mm/s. Microstructures in both longitudinal and transverse section of the molten pools have been analyzed by optical microscope and SEM technique, and the average composition in the molten pools has been measured by Electron Probe Microanalysis(EPMA). With the increasing of growth rate, the microstructures of Zn-4.0 wt.%Cu alloy change from planar interface to lamellar structures and then cellular structures, and finally to absolute stability planar interface at a growth rate of 562mm/s, which shows reasonable agreement with that predicted by M-S theory.

AB - Laser surface remelting experiments on Zn-4.0wt.%Cu hyperperitectic alloy have been performed on a 5kW CW CO2 laser with the scanning velocities between 6 and 1207mm/s. Microstructures in both longitudinal and transverse section of the molten pools have been analyzed by optical microscope and SEM technique, and the average composition in the molten pools has been measured by Electron Probe Microanalysis(EPMA). With the increasing of growth rate, the microstructures of Zn-4.0 wt.%Cu alloy change from planar interface to lamellar structures and then cellular structures, and finally to absolute stability planar interface at a growth rate of 562mm/s, which shows reasonable agreement with that predicted by M-S theory.

KW - Absolute stability

KW - Laser surface remelting

KW - Microstructure evolution

KW - Zn4.0wt.%Cu hyperperitectic alloy

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U2 - 10.4028/0-87849-960-1.2611

DO - 10.4028/0-87849-960-1.2611

M3 - 会议文章

AN - SCOPUS:17044374039

SN - 0255-5476

VL - 475-479

SP - 2611

EP - 2614

JO - Materials Science Forum

JF - Materials Science Forum

IS - IV

T2 - PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing

Y2 - 2 November 2004 through 5 November 2004

ER -

Microstructure evolution of a Zn-4wt.% Cu hyperperitectic alloy under laser surface remelting

Abstract

Keywords

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