引用本文:
曹刚敏, 杨防祖, 黄令, 牛振江, 许书楷, 周绍民. 退火前后镍钨硼合金电沉积层的结构与性能[J]. 物理化学学报,
2001, 17(02): 150-154.
doi:
10.3866/PKU.WHXB20010212
Citation: Cao Gang-Min, Yang Fang-Zu, Huang Ling, Niu Zhen-Jiang, Xu Shu-Kai, Zhou Shao-Min. Structure and Property of Ni-W-B Alloy Electrodeposits Before and After Heat Treatment[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 150-154. doi: 10.3866/PKU.WHXB20010212
Citation: Cao Gang-Min, Yang Fang-Zu, Huang Ling, Niu Zhen-Jiang, Xu Shu-Kai, Zhou Shao-Min. Structure and Property of Ni-W-B Alloy Electrodeposits Before and After Heat Treatment[J]. Acta Physico-Chimica Sinica, 2001, 17(02): 150-154. doi: 10.3866/PKU.WHXB20010212
退火前后镍钨硼合金电沉积层的结构与性能
摘要:
采用电化学技术、XPS、DSC、XRD等方法研究NiWB合金电沉积及热处理前后合金镀层的结构和显微硬度.结果表明，在NiWB合金电沉积过程中伴随着化学沉积镍等过程以及Na2B4O7在镀层中的夹杂；NiW和NiWB合金电沉积层分别表现为纳米晶结构和非晶态结构；热处理过程中合金电沉积层发生晶粒粗化过程以及NiWB合金镀层发生新相形成过程，产生Ni4W和镍硼化物如Ni2B、Ni3B等沉淀物；400 ℃热处理2 h后NiW合金镀层有最大的显微硬度达919.8 kg•mm－2，而在500 ℃下NiWB合金有最大的硬度达1132.2 kg•mm－2.
English
Structure and Property of Ni-W-B Alloy Electrodeposits Before and After Heat Treatment
Abstract:
The structure and microhardness of NiWB alloy were studied by means of electrochemical techniques, XPS, DSC and XRD before and after heat treatment. The results showed that the process of NiWB alloy electrodeposition was accompanied by the chemical deposition of Ni and adulteration of Na2B4O7 in the deposit. NiW alloy presented in nanocrystalline structure and NiWB in amorphous structure were both coarsened in grain size and led to the evolution of Ni4W, and precipitation of Ni－B compound such as Ni2B, Ni3B in NiWB alloy after heat treatment. The maximum microhardness could be observed for NiW alloy at the value of 919.8 kg•mm－2 after heat treatment for 2 hours at temperature of 400 ℃ and NiWB alloy at 1132.2 kg•mm－2 (500 ℃, 2 hrs).
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