Advanced Search

ISSN 1001-3806 CN 51-1125/TN Map

Volume 25 Issue 1
Sep.  2013
Article Contents
Turn off MathJax
Article Navigation >  LASER TECHNOLOGY  > 2001 >  25(1): 18-22

Citation:
shu

A numerical simulation for solidification process of laser pool for composite coating system

  • 1.

    Department of Physics, Capital Normal University, Beijing, 100037;

  • 2.

    Department of Physics and Materials Science, City University of Hong Kong, Hong Kong;

  • 3.

    Tsinghua Univ ersity, Beijing, 100084

  • 4.

    School of Materials Science and Engineering, HUST, Wuhan, 430074

  • Received Date: 1999-08-30
    Accepted Date: 2000-06-06
  • In this paper, solidification process of laser pool for composite coating system is studied, using numerical technology. The results demonstrate that solidification process may be divided into two stages: quasi-state stage and accelerating stage. At quasi-state stage, the depth and radius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly. At the accelerating stage, those are on the contrary. Because of highly overheating in upper molten pool, post molten phenomenon is produced in down molten pool, during solidification quasi-state stage. The key factors to produce post molten region are the overheating and the latent heat released during solidification process in upper molten pool.
  • 加载中
  • [1] Zeng DW,Xie Ch Sh.Laser Technology(激光技术), 2000;24(6):370
    [2]

    Wang AH. Investigation into Laser Beam Cladding of Aluminum Alloy and Its Behavior in the Transitional Region. PH D Dissertation, Huazhong University of S cience and Technology, 1997: 40
    [3]

    Zeng D W,Xie Ch Sh,Sheng Y M.The Chinese Journal of Nonferrous Metals,2000 ;10(4):502～505
    [4]

    Kou S,Wang Y H.Metall Tans A, 1986;17A:2265
    [5]

    Basu B,Date A W.Int J Heat Mass Transfer,1988;31(11):2331
    [6]

    Rhie C M,Chow W L.AIAA J,1983;21:1525
    [7]

    Tao L H.Foundry Handbook.Beijing:Mechanical Industry Press,1993
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Get Citation
PDF
XML

Article views(3227) PDF downloads(414) Cited by()

Proportional views

A numerical simulation for solidification process of laser pool for composite coating system

  • 1. Department of Physics, Capital Normal University, Beijing, 100037;
  • 2. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong;
  • 3. Tsinghua Univ ersity, Beijing, 100084
  • 4. School of Materials Science and Engineering, HUST, Wuhan, 430074
  • Received Date: 1999-08-30
  • Accepted Date: 2000-06-06
  • Available Online: 2001-01-25

Abstract: In this paper, solidification process of laser pool for composite coating system is studied, using numerical technology. The results demonstrate that solidification process may be divided into two stages: quasi-state stage and accelerating stage. At quasi-state stage, the depth and radius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly. At the accelerating stage, those are on the contrary. Because of highly overheating in upper molten pool, post molten phenomenon is produced in down molten pool, during solidification quasi-state stage. The key factors to produce post molten region are the overheating and the latent heat released during solidification process in upper molten pool.

    HTML

Reference (7)

Catalog

    Copyright © Laser Technology. 蜀ICP备10038222号-1

    Address：No. 7, Section 4, Renmin South Road, Chengdu, Sichuan Province, China Postal Code：610041  Telephone：028-68011091/68011046  Email： jgjs@vip.163.com,  jgjs@sina.com

    Supported by: Beijing Renhe Information Technology Co. Ltd  support: info@rhhz.net

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return