摘要
通过化学镀的方法在Cu基底上制备了不同晶态的Ni—Mo—P镀层，对Ni-1．0at％Mo-17．0at％合金镀层进行了200～600℃的真空热处理后，利用X射线荧光光谱仪、X射线衍射仪、俄歇电子能谱仪、能量散射谱仪对样品的厚度、成分、物相结构进行了表征与分析。结果表明，随着P含量的增加，合金镀层的晶态由结晶到混晶、非晶转变。随着热处理温度的增加，镀层本身结晶性提高，cu原子扩散到镀层中，从而影响镀层的晶态。通过计算可得，400和500℃时，Cu扩散量为4．14at％、6．14at％。Cu在Ni．1．0at％Mo．17．0at％合金镀层中的扩散激活能为1．11eV。
The Ni-Mo-P alloy coatings were fabricated by electroless deposition with different composition. The composition and thickness of Ni-Mo-P alloy coatings were tested by X-ray fluorescence spectrometer. The crystalline states,depth profiles of Ni-1.0 at% Mo-17at% coatings after different annealing temperatures for 30 min were investigated by means of X-ray diffraction, Auger electro spectrometer, respectively. The results show the crystallized Ni-Mo-P coatings became to amorphous one with increasing of P content. The diffusion quantity of Cu into Ni-Mo-P coatings at 400 ℃ , 500 ℃ are 4. 14 at% , 6.14 at% calculated through XRD patterns. The activation energy of diffusion for Cu in Ni-1.0 at% Mo-17 at% is 1.5 eV.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2014年第3期209-212,共4页
Transactions of Materials and Heat Treatment
关键词
Cu扩散
非晶
X射线衍射
Cu diffusion
amorphous
X-ray diffraction
