Structure and property of Ni-W-B alloy electrodeposits before and after heat treatment

被引：2

作者：

Cao, GM ^{[1
]}

Yang, FZ ^{[1
]}

Huang, L ^{[1
]}

Niu, ZJ ^{[1
]}

Xu, SK ^{[1
]}

Zhou, SM ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Inst Phys Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2001年 / 17卷 / 02期

关键词：

Ni-W-B alloy; electrodeposition; structure; microhardness; heat treatment;

D O I：

10.3866/PKU.WHXB20010212

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The structure and microhardness of Ni-W-B alloy were studied by means of electrochemical techniques, XPS, DSC and XRD before and after heat treatment. The results showed that the process of Ni-W-B alloy electrodeposition was accompanied by the chemical deposition of Ni and adulteration of Na2B4O7 in the deposit. Ni-W alloy presented in nanocrystalline structure and Ni-W-B 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 Ni-W-B alloy after heat treatment, The maximum microhardness could be observed for Ni-W alloy at the value of 919.8 kg . mm(-2) after heat treatment for 2 hours at temperature of 400 degreesC and Ni-W-B alloy at 1132.2 kg . mm(-2) (500 degreesC, 2 hrs).

引用

页码：150 / 154

页数：5

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