熔模铸造ZA93镁合金的化学镀镍工艺研究

中国腐蚀与防护学报

2012, Vol. 32

Issue (2): 90-94

研究报告

本期目录 | 过刊浏览

熔模铸造ZA93镁合金的化学镀镍工艺研究

肖伟^1,2,单大勇¹,陈荣石¹

1. 中国科学院金属研究所金属腐蚀与防护国家重点实验室沈阳 110016
2. 沈阳理工大学材料科学与工程学院沈阳 110168

EFFECT OF PROCESS OF ELECTROLESS PLATING ON INVESTMENT CASTING ZA93 MAGNESIUM ALLOY

XIAO Wei^1,2, SHAN Dayong¹, CHEN Rongshi¹

1. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016
2. College of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110168

全文: PDF(805 KB)

摘要: 以熔模铸造Mg-9 mass%Zn-3 mass%Al（ZA93）镁合金为基底，分别研究碘离子、乳酸和氟化氢铵对化学镀镍的镀液稳定性和镀层沉积速度的影响规律及其反应机理，并在此基础上优化了镀液配方。用扫描电子显微镜（SEM）、能谱（EDX）和X射线衍射（XRD）等方法对优化镀液中试镀得到的Ni-P镀层的显微组织、相结构以及元素组成进行了分析。结果表明，碘离子与氟化氢铵在一定浓度范围内，可以同时提高镀液的稳定性和镀层沉积速度，但乳酸对镀液的影响机制较为复杂。优化配方镀液的稳定性相对原镀液有了明显的提高，同时保持了较高的镀速，得到的镀层组织均匀、致密和结合良好，为非晶态结构。

关键词 ： ZA93镁合金, 熔模铸造, 化学镀, 稳定性, 镀速

Abstract：The effects of the concentration of iodine ion, ammonium bifluoride and lactic acid on the stability and deposition rate of Ni plating solution have been investigated using investment casting ZA93 alloy as base material. The composition of the plating solution was also optimized. SEM, EDX and XRD have been applied to analyze the microstructure, phase identification, and the elements distribution of the coating. The results showed that the ammonium bifluoride and iodine ion increased both the stability of the plating solution and the deposition rate, but the effect of lactic acid on the plating solution was more complicated. Compared to the former one, the optimized plating solution showed higher deposition rate and was much more stable. The coating was homogeneous, compact with good adhesion to the base and the structure was amorphous.

Key words： ZA93 magnesium alloy investment casting electroless plating stability deposition rate

收稿日期: 2011-01-06

ZTFLH:

TG146.22

基金资助:

国家科技支撑计划项目（2011BAE22B05）资助

通讯作者: 陈荣石 E-mail: rschen@imr.ac.cn

Corresponding author: CHEN Rongshi E-mail: rschen@imr.ac.cn

作者简介: 肖伟，男，1985年生，硕士生，研究方向为铸造镁合金

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引用本文:

肖伟,单大勇,陈荣石. 熔模铸造ZA93镁合金的化学镀镍工艺研究[J]. 中国腐蚀与防护学报, 2012, 32(2): 90-94.
XIAO Wei. EFFECT OF PROCESS OF ELECTROLESS PLATING ON INVESTMENT CASTING ZA93 MAGNESIUM ALLOY. J Chin Soc Corr Pro, 2012, 32(2): 90-94.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2012/V32/I2/90

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