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AZ31鎂合金化學(xué)鍍鎳鍍層分析
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重慶大學(xué) 材料科學(xué)與工程學(xué)院,重慶大學(xué) 材料科學(xué)與工程學(xué)院,重慶大學(xué) 材料科學(xué)與工程學(xué)院,重慶大學(xué) 材料科學(xué)與工程學(xué)院,重慶大學(xué) 材料科學(xué)與工程學(xué)院

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TG153.1

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南充市應(yīng)用技術(shù)研究與開發(fā)(14A0101)；重慶大學(xué)大型儀器設(shè)備開放基金資助項(xiàng)目(201612150058)


Analysis of Electroless Nickel Plating on the Surface of AZ31 Magnesium Alloys
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College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University,College of Materials Science and Engineering,Chongqing University

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    摘要:

    本文以H3PO4+HNO3酸洗與NH4HF2+H3PO4活化為前處理工藝，對(duì)AZ31鎂合金進(jìn)行化學(xué)鍍鎳研究。應(yīng)用掃描電子顯微鏡（SEM）、能譜分析（EDS）、X射線衍射儀（XRD）與X射線光電子能譜分析儀(XPS)等方法對(duì)化學(xué)鍍鎳層進(jìn)行形貌、成分分布、相結(jié)構(gòu)以及元素分析。結(jié)果表明：化學(xué)鍍鎳層表面平整光亮，鍍層為高磷非晶結(jié)構(gòu)。化學(xué)鍍鎳層表面，鎳主要以單質(zhì)鎳（26.75%）、NiO(32.96%)以及Ni(OH)2（40.29%）形式存在，磷主要以單質(zhì)磷（20.17%）、PO42-（17.37%）以及PO43-（62.46%）形式存在；化學(xué)鍍鎳層內(nèi)部，鎳基本為金屬單質(zhì)鎳，磷主要單質(zhì)磷（74.11%）以及PO42-（25.89%）形式存在。

    Abstract:

    The electroless nickel plating on AZ31 magnesium alloy was studied, basing on the pretreatment process of H3PO4+HNO3 pickling and NH4HF2+H3PO4 activation. The morphology, composition distribution, phase structure and elemental analysis of electroless nickel plating coating were investigated through scanning electron microscope (SEM), energy dispersive analysis of X-ray(EDS), X-ray diffractometer (XRD), x ray photoelectron spectroscope(XPS). The results indicate that the surface of the electroless nickel plating coating is smooth and bright, the structure of deposits is amorphous with high content of phosphorous. The occurrence mode of nickel on the surface of deposits is pure nickel(26.7%), NiO(32.96%)and Ni(OH)2(40.29%), and occurrence mode of phosphorus is pure P(20.17%), PO42- (17.37%)and PO43-(62.46%). Furthermore, the occurrence mode of nickel in the intermediate layers of the coating is almost 100% pure nickel, and occurrence mode of phosphorus is pure P (74.11%) and PO42-(25.89%).

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閆鵬,游國(guó)強(qiáng),張秀麗,丁煜瀚,童鑫. AZ31鎂合金化學(xué)鍍鎳鍍層分析[J].稀有金屬材料與工程,2018,47(8):2381~2385.[YAN Peng, You Guo-qiang, ZHANG Xiu-li, DING Yu-han, TONG Xin. Analysis of Electroless Nickel Plating on the Surface of AZ31 Magnesium Alloys[J]. Rare Metal Materials and Engineering,2018,47(8):2381~2385.]
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  • 收稿日期:2017-07-07
  • 最后修改日期:2018-01-04
  • 錄用日期:2018-01-09
  • 在線發(fā)布日期: 2018-10-17
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