槽液成分对碱性镀锌镍氢脆性能的影响研究

杨志业, 王进军, 胡遐林, 耿莽河, 李阳

doi:10.16577/j.issn.1001-1560.2022.0290

材料保护 >

2022 , Vol. 55 >Issue 10: 143 - 146

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0290

工艺探讨

槽液成分对碱性镀锌镍氢脆性能的影响研究

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(1.沈阳飞机工业(集团)有限公司，辽宁沈阳 110850；2.武汉材料保护研究所有限公司，湖北武汉 430030)

杨志业(1985-)，高级工程师，研究方向为表面处理工艺及质量控制，电话：15142008906，E-mail：359802793@qq.com

收稿日期: 2022-04-19

修回日期: 2022-05-06

录用日期: 2022-06-01

网络出版日期: 2023-12-23

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Study on the Influence of Tank Liquor Composition on Hydrogen Brittleness Performance of Alkaline Zinc - Nickel Plating

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(1.AVIC,Shenyang 110850,China;2.Wuhan Material Protection Research Institute Co.,Ltd.,Wuhan 430030,China)

Received date: 2022-04-19

Revised date: 2022-05-06

Accepted date: 2022-06-01

Online published: 2023-12-23

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摘要

为确定NZ-70系列碱性镀锌镍工艺长期使用条件下氢脆性能变化，采用缺口圆棒拉伸试验研究了光亮剂NZ-73浓度对镀层氢脆性能的影响，采用测氢仪研究了碱性镀锌镍溶液中锌、镍、氢氧化钠、配位剂NZ-71浓度对镀层氢脆性能的影响。结果表明：光亮剂浓度对镀层氢脆性能影响最大，在0.1 mL/L的光亮剂含量下，镀层氢可渗透性就会显著下降，但尚可通过缺口拉棒试验，在0.5 mL/L的光亮剂含量下，氢脆性能显著下降，无法通过缺口拉棒试验。其余槽液成分对镀层氢可渗透性影响排序为NaOH>NZ-71>Ni2+>Zn2+。当氢氧化钠和配位剂NZ-71含量较低，Zn2+ 、Ni2+含量较高时，镀锌镍层氢可渗透性最好。

关键词： 镀锌镍; 氢脆性能; 测氢仪; 槽液成分

本文引用格式

杨志业, 王进军, 胡遐林, 耿莽河, 李阳 . 槽液成分对碱性镀锌镍氢脆性能的影响研究[J]. 材料保护, 2022 , 55(10) : 143 -146 . DOI: 10.16577/j.issn.1001-1560.2022.0290

Abstract

In order to determine the change of hydrogen embrittlement performance of the NZ-70 series of alkaline zinc-nickel plating process under long-term service conditions,the influence of the concentration of brightener NZ-73 on the hydrogen embrittlement of the coating was studied by notched round bar tensile test,and the influence of the concentration of zinc ions,nickel ions,sodium hydroxide and coordination agent NZ-71 in alkaline zinc-nickel plating solution on the hydrogen embrittlement of the coating was studied by hydrogen meter.Results showed that the concentration of brightener had the greatest effect on the hydrogen brittleness of the coating.The hydrogen permeability of the coating decreased significantly when the brightener concentration was 0.1 ml/L,but it could still pass the notch rod test.The hydrogen brittleness decreased significantly when the brightener concentration was 0.5 ml/L,and it could not pass the notch rod test.The effect of other components on the hydrogen permeability of the coating was in the order of NaOH >NZ-71 >Ni2+ >Zn2+.When the contents of sodium hydroxide and complexing agent NZ-71 were low,and the contents of Zn2+ and Ni2+ were high,the hydrogen permeability of zinc-nickel plated coating was the best.

Key words： zinc-nickel plating; hydrogen embrittlement; hydrogen meter; tank liquor composition

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