化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 398-402.DOI: 10.3969/j.issn.0438-1157.2014.z1.064

• 表面与界面工程 • 上一篇    下一篇

换热表面Ni-W-P镀层抗垢特性

程延海1, 陈衡阳1, 杨金勇1, 韩东太2, 朱真才1   

  1. 1. 中国矿业大学机电工程学院, 江苏 徐州 221116;
    2. 中国矿业大学电力工程学院, 江苏 徐州 221116
  • 收稿日期:2014-02-10 修回日期:2014-02-20 出版日期:2014-05-30 发布日期:2014-05-30
  • 通讯作者: 程延海
  • 基金资助:

    国家重点基础研究发展计划项目(2013CB228305);中央高校基本科研业务费专项资金项目(2012QNA26);江苏高校优势学科建设工程项目。

Anti-fouling properties of electroless Ni-W-P deposit on heat transfer surface

CHENG Yanhai1, CHEN Hengyang1, YANG Jinyong1, HAN Dongtai2, ZHU Zhencai1   

  1. 1. School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;
    2. School of Electric Power Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
  • Received:2014-02-10 Revised:2014-02-20 Online:2014-05-30 Published:2014-05-30
  • Supported by:

    supported by the Basic Research Program of China(2013CB228305),the Fundamental Research Funds for the Central Universities (2012QNA26) and the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘要: 通过调整Ni-W-P化学镀镀液中钨酸钠浓度,获得了钨元素含量不同的三元Ni-W-P镀层。进一步的实验研究表明,随着三元Ni-W-P镀层中钨元素含量的增加,其热稳定性得到显著改善,同时,镀层晶粒转变的激活能值呈增大趋势。三元Ni-W-P镀层的抗垢性随着镀层中钨元素含量的增加而降低,而与镀层表面自由能以及表面粗糙度没有必然的联系。

关键词: Ni-W-P镀层, 传质, 热稳定性, 表面, 结垢

Abstract: In the present work, ternary Ni-W-P deposits with different tungsten content were prepared by varying sodium tungstate concentration in electroless plating. Studies on phase transformation behavior carried out by differential scanning calorimetry (DSC) showed that Ni-W-P deposits exhibited higher thermostability and activation energy with the increase of W composition. Further fouling experiments indicated the surfaces of Ni-W-P deposits with different W content inhibited the adhesion of fouling compared with the mild steel surface. However, there is not necessarily a relationship between the fouling adhesion rate and surface roughness or free energy of the ternary Ni-W-P deposits, but is intimately related to the W content.

Key words: Ni-W-P deposits, mass transfer, thermostability, surface, fouling

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