LASER SURFACE-TREATMENT DOMINATED BY BUOYANCY FLOWS

被引：11

作者：

SCHUSSLER, A

STEEN, PH

EHRHARD, P

机构：

[1] CORNELL UNIV,DEPT CHEM ENGN,ITHACA,NY 14853

[2] KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH,INST ANGEW THERMO & FLUIDDYNAM,W-7500 KARLSRUHE 1,GERMANY

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 04期

关键词：

D O I：

10.1063/1.351161

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An experimental setup is investigated wherein surface tension forces are suppressed during laser treatment and the melt pool convection is controlled by buoyancy forces. The structure of surfaces processed by this method differs from those of conventionally treated surfaces. A dimensionless measure of buoyancy-flow strength, namely the Grashof number, is employed to quantify the flow intensity that is linked to the breakdown of the covering particle coating. Using a two-dimensional numerical approach the flow and temperature fields are computed.

引用

页码：1972 / 1975

页数：4

共 16 条

[1] SURFACE RIPPLING INDUCED BY SURFACE-TENSION GRADIENTS DURING LASER SURFACE MELTING AND ALLOYING [J].