{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T00:04:43Z","timestamp":1783037083698,"version":"3.54.6"},"reference-count":32,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T00:00:00Z","timestamp":1724976000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Universities","award":["KJ2021ZD0111"],"award-info":[{"award-number":["KJ2021ZD0111"]}]},{"name":"Natural Science Foundation of Universities","award":["No. 881027"],"award-info":[{"award-number":["No. 881027"]}]},{"name":"Natural Science Foundation of Universities","award":["No. 881028"],"award-info":[{"award-number":["No. 881028"]}]},{"name":"Natural Science Foundation of Universities","award":["No. 881202"],"award-info":[{"award-number":["No. 881202"]}]},{"name":"Enterprise Projects","award":["KJ2021ZD0111"],"award-info":[{"award-number":["KJ2021ZD0111"]}]},{"name":"Enterprise Projects","award":["No. 881027"],"award-info":[{"award-number":["No. 881027"]}]},{"name":"Enterprise Projects","award":["No. 881028"],"award-info":[{"award-number":["No. 881028"]}]},{"name":"Enterprise Projects","award":["No. 881202"],"award-info":[{"award-number":["No. 881202"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Extended exposure to seawater results in the erosion of the structural high-strength steels utilized in marine equipment, primarily due to the infiltration of hydrogen. Consequently, this erosion leads to a decrease in the mechanical properties of the material. In this investigation, the mechanical responses of Q690 structural high-strength steel specimens were investigated by considering various hydrogen charging parameters, such as the current density, charging duration, and solution concentration values. The findings highlighted the significant impacts of electrochemical hydrogen charging parameters on the mechanical behaviors of Q690 steel samples. Specifically, a linear relationship was observed between the mechanical properties and the hydrogen charging current densities, while the associations with the charging duration and solution concentration were nonlinear. Additionally, the fracture morphology under various hydrogen charging parameters was analyzed and discussed. The results demonstrate that the mechanical properties of the material degrade with increasing hydrogen charging parameters, with tensile strength and yield stress decreasing by approximately 2\u20134%, and elongation after fracture reducing by about 20%. The findings also reveal that macroscopic fractures exhibit significant necking in uncharged conditions. As hydrogen charging parameters increase, macroscopic necking gradually diminishes, the number of microscopic dimples decreases, and the material ultimately transitions to a fully brittle fracture.<\/jats:p>","DOI":"10.3390\/ma17174290","type":"journal-article","created":{"date-parts":[[2024,8,30]],"date-time":"2024-08-30T07:45:47Z","timestamp":1725003947000},"page":"4290","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Effects of Electrochemical Hydrogen Charging Parameters on the Mechanical Behaviors of High-Strength Steel"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5106-0850","authenticated-orcid":false,"given":"Wen-Jiao","family":"Dan","sequence":"first","affiliation":[{"name":"School of Mechanical Engineering, Anhui Science and Technology University, Chuzhou 233100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Anhui Science and Technology University, Chuzhou 233100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng-Wang","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, Anhui Science and Technology University, Chuzhou 233100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu-Yang","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"440","DOI":"10.1007\/s11661-012-1389-9","article-title":"Strengthening and toughening of a heavy plate steel for shipbuilding with yield strength of approximately 690 MPa","volume":"44","author":"Liu","year":"2013","journal-title":"Metall. 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