Research progress of hydrogen embrittlement sensitivity in electroplated Zn-Ni alloy of high strength steel parts
In order to prevent oxidative rust on the surface of steel materials in natural atmospheric environment,protective layers such as galvanized or galvanized nickel alloy are usually used on the surface of steel parts.Since the electroplating process may cause hydrogen embrittlement or hydrogen embrittlement delayed damage of high-strength materials,it is very important to investigate the hydrogen embrittlement sensitivity in electroplating of high-strength materials.In this paper,the hydrogen embrittlement failure cases of high-strength steel parts caused by electroplating process and the experimental research results of scholars were introduced,the infiltration of hydrogen during electroplating was discussed,the existence state of hydrogen atoms inside the parts was summarized,the hydrogen embrittlement sensitivity during deposition of different electroplating solutions was contrasted,the influence of coating microstructure on hydrogen atom escape and hydrogen embrittlement sensitivity were analyzed,the research status of hydrogen removal process by heat treatment and baking and evaluation methods of hydrogen embrittlement sensitivity of materials were summarized.The relevant content can lay a technical foundation for reducing the risk of electroplating hydrogen embrittlement sensitivity of high-strength steel materials,and better guide the application of electroplating high-strength steel parts.
high strength steelelectroplated Zn and Zn-Nihydrogen embrittlement sensitivityhydrogen embrittlement mechanism
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