(東北大學(xué) 材料與冶金學(xué)院， 沈陽(yáng) 110004)
摘 要: 研究了施加穩(wěn)恒磁場(chǎng)（0~1 T）對(duì)電鍍Ni-W合金的影響。 測(cè)定不同方向、 不同強(qiáng)度穩(wěn)恒磁場(chǎng)下的電流效率、 合金組成及鍍層的耐蝕性， 并用掃描電鏡和X射線衍射對(duì)鍍層的微觀形貌及結(jié)構(gòu)進(jìn)行了觀察和分析。 對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行了分析討論， 找出穩(wěn)恒磁場(chǎng)對(duì)這些性能指標(biāo)的影響規(guī)律。 結(jié)果表明：與不施加磁場(chǎng)相比， 施加磁場(chǎng)后鍍層的表面更均勻、 細(xì)致、 平整； 鍍層的含鎢量上升： 當(dāng)B⊥J， B=1.0 T時(shí)， 含鎢量上升了約7%； 當(dāng)B∥J， B=1.0 T時(shí)， 含鎢量上升了約9%； 鍍膜的非晶化程度增強(qiáng)； 鍍膜的耐蝕性提高；但NiW合金電鍍的電流效率降低。
關(guān)鍵字: 鎳-鎢合金; 穩(wěn)恒磁場(chǎng); 電沉積; 耐蝕性
in stabilized magnetic field
FAN Zhan-guo, LIU Su-lan, GUO Dong
（School of Materials and Metallurgy, Northeastern University,
Shenyang 110004, China）
Abstract: The effects of stabilized magnetic field (0-1 T) on electroplating nickel-tungsten alloy films were studied. The current efficiency, composition and corrosion resistance of nickel-tungsten alloy films electroplated in different direction and intensity magnetic fields were tested respectively. The micro-morphology of films was observed under scanning electron microscope and the structure was analyzed by X-ray diffractrometry. The influence rules of stabilized magnetic field on performances of nickel-tungsten alloy films were obtained according to experimental data. The results show that the films electroplated in stabilized magnetic field are more homogeneous and smooth and the content of tungsten in films increases to 7%(B∥J, B=1.0 T) and 9%(B∥J, B=1.0 T) respectively compared with those electroplated without applying magnetic field. The corrosion resistance and amorphism of electroplated films also increases, while the current efficiency of plating solution decreases in magnetic field.
Key words: nickel-tungsten alloy; stabilized magnetic field; electroplating; corrosion resistance
