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不同腐蚀试验方法对镀锌材料的防腐性能评价研究

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  • 浙江吉利新能源商用车集团有限公司,浙江 杭州 311228
金泉军(1977-),硕士,高级工程师,研究方向为汽车材料开发与轻量化技术,电话:17306815536,E-mail:jqj2003@126.com

收稿日期: 2022-08-19

  修回日期: 2022-09-16

  录用日期: 2022-10-15

  网络出版日期: 2023-08-11

Study of the Evaluation of Anti-Corrosion Performance of Galvanized Materials by Different Corrosion Test Methods

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  • Zhejiang Geely New Energy Commercial Vehicle Groud Co.Ltd.,Hangzhou 311228,China

Received date: 2022-08-19

  Revised date: 2022-09-16

  Accepted date: 2022-10-15

  Online published: 2023-08-11

摘要

研究中性盐雾试验方法与循环试验方法(包括通用汽车GMW 14872、大众汽车PV1210、日本汽车JASO M610 等试验方法)对裸板、镀锌板腐蚀效果的评价差异,明确不同的加速腐蚀试验对不同镀层材料的腐蚀形貌及蚀痕扩展值的影响,通过对比分析不同腐蚀试验方法对几种镀层材料防腐性能的评价结果发现:采用中性盐雾试验方法、GMW14872、JASO M610 及PV1210 循环腐蚀试验方法,对于油漆破坏后的宏观形貌均表现为GA 板较好,GI 板其次,CR 板形貌最差;而单侧蚀痕扩展值对于中性盐雾试验方法,GI 板最大,GA 板次之,CR 板最小,对于JASO M610 及PV1210 循环腐蚀试验方法,GI 最大,CR 板次之,GA 板最小;采用GMW14872 循环试验方法,单侧蚀痕扩展值GA 板最小,GI 板次之,CR 板最大。

本文引用格式

金泉军, 梁韬, 吕玲芳, 张涵洁, 王瑶 . 不同腐蚀试验方法对镀锌材料的防腐性能评价研究[J]. 材料保护, 2023 , 56(2) : 51 -56 . DOI: 10.16577/j.issn.1001-1560.2023.0034

Abstract

In this paper,the differences between neutral salt spray test and cyclic tests (including GM GMW 14872,Volkswagen PV1210,JASO M610) in the evaluation of corrosion effect of bare sheet and galvanized sheet were analyzed,and the effects of different accelerated corrosion tests on the corrosion morphology and corrosion mark expansion value of different coating materials were determined.By comparing and analyzing the evaluation results of the corrosion resistance of several coating materials obtained by different corrosion test methods,it could be found that the macroscopic morphology of paint damage in salt spray test and the above-mentioined cyclic tests presented as follows: GA board was the best,followed by GI board,and CR board was the worst.For the neutral salt spray test,the expansion value of single side erosion mark of GI board was the largest,followed by that of GA board,and CR board had the smallest value.For the JASO M610 and PV1210 cyclic corrosion tests,that value of GI board was the largest,followed by CR board,and GA board had the smallest value.For the GMW14872 cycle test,that value of GA board was the smallest,followed by GI board,and CR board had the largest value.

参考文献

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