{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T17:32:05Z","timestamp":1778520725794,"version":"3.51.4"},"reference-count":34,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T00:00:00Z","timestamp":1751414400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Central Government Guides Local Funds for Science and Technology Development","award":["Guike ZY24212043"],"award-info":[{"award-number":["Guike ZY24212043"]}]},{"name":"Central Government Guides Local Funds for Science and Technology Development","award":["Guike AB25069240"],"award-info":[{"award-number":["Guike AB25069240"]}]},{"name":"Central Government Guides Local Funds for Science and Technology Development","award":["JBGS2024005"],"award-info":[{"award-number":["JBGS2024005"]}]},{"name":"Central Government Guides Local Funds for Science and Technology Development","award":["Guike AA24263002"],"award-info":[{"award-number":["Guike AA24263002"]}]},{"name":"Guangxi Key Research and Development Program","award":["Guike ZY24212043"],"award-info":[{"award-number":["Guike ZY24212043"]}]},{"name":"Guangxi Key Research and Development Program","award":["Guike AB25069240"],"award-info":[{"award-number":["Guike AB25069240"]}]},{"name":"Guangxi Key Research and Development Program","award":["JBGS2024005"],"award-info":[{"award-number":["JBGS2024005"]}]},{"name":"Guangxi Key Research and Development Program","award":["Guike AA24263002"],"award-info":[{"award-number":["Guike AA24263002"]}]},{"name":"\u201cRevealing the List and Taking Command\u201d Project of the National Outstanding Engineer Innovation Research Institute for Advanced Manufacturing in the Guangdong-Hong Kong-Macao Greater Bay Area (Foshan)","award":["Guike ZY24212043"],"award-info":[{"award-number":["Guike ZY24212043"]}]},{"name":"\u201cRevealing the List and Taking Command\u201d Project of the National Outstanding Engineer Innovation Research Institute for Advanced Manufacturing in the Guangdong-Hong Kong-Macao Greater Bay Area (Foshan)","award":["Guike AB25069240"],"award-info":[{"award-number":["Guike AB25069240"]}]},{"name":"\u201cRevealing the List and Taking Command\u201d Project of the National Outstanding Engineer Innovation Research Institute for Advanced Manufacturing in the Guangdong-Hong Kong-Macao Greater Bay Area (Foshan)","award":["JBGS2024005"],"award-info":[{"award-number":["JBGS2024005"]}]},{"name":"\u201cRevealing the List and Taking Command\u201d Project of the National Outstanding Engineer Innovation Research Institute for Advanced Manufacturing in the Guangdong-Hong Kong-Macao Greater Bay Area (Foshan)","award":["Guike AA24263002"],"award-info":[{"award-number":["Guike AA24263002"]}]},{"name":"Guangxi Science and Technology Major Program","award":["Guike ZY24212043"],"award-info":[{"award-number":["Guike ZY24212043"]}]},{"name":"Guangxi Science and Technology Major Program","award":["Guike AB25069240"],"award-info":[{"award-number":["Guike AB25069240"]}]},{"name":"Guangxi Science and Technology Major Program","award":["JBGS2024005"],"award-info":[{"award-number":["JBGS2024005"]}]},{"name":"Guangxi Science and Technology Major Program","award":["Guike AA24263002"],"award-info":[{"award-number":["Guike AA24263002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Based on end-quenching and step-quenching experiments combined with scanning electron microscopy (SEM) and transmission electron microscopy (TEM), the quench sensitivity of a novel high-strength aluminum alloy was investigated and compared with that of GB\/T 7075 and 7175 alloys; quench factor analysis (QFA) was employed to predict the hardness values of the alloy and investigate the effect of quenching rate on its mechanical properties. The experimental results indicate that when the cooling rate decreases from 402.5 \u00b0C\/s to 3.6 \u00b0C\/s, the hardness reduction rate of the novel high-strength aluminum alloy is 15%. Furthermore, the nose temperature of the time\u2013temperature\u2013property (TTP) curve for this alloy is 325 \u00b0C, with a critical transformation time of 0.4 s. The quench-sensitive temperature range is 219 \u00b0C to 427 \u00b0C, which is lower than the quenching sensitivity of 7075 and 7175 alloys. The new alloy reduces its quenching sensitivity by optimizing the composition of alloying elements. Furthermore, the QFA demonstrates high predictive accuracy, with a maximum error of 5%. The smaller the quenching factor \u03c4, the greater the hardness of the alloy after aging. Combined with the TTP curve, the alloy properties are optimized by modulating the quenching rate. This study provides a theoretical basis for selecting hot forming\u2013quenching integrated process parameters in automotive high-strength aluminum alloys.<\/jats:p>","DOI":"10.3390\/ma18133132","type":"journal-article","created":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T06:10:26Z","timestamp":1751436626000},"page":"3132","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Quenching Sensitivity Study of New High-Strength Aluminum Alloys Based on an Immersion End-Quenching and Step-Quenching Technique"],"prefix":"10.3390","volume":"18","author":[{"given":"Chengbo","family":"Li","sequence":"first","affiliation":[{"name":"School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qinyao","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yiming","family":"Qin","sequence":"additional","affiliation":[{"name":"College of Traffic and Transportation, Nanning University, Nanning 530200, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Puli","family":"Cao","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China"},{"name":"School of Materials Science and Engineering, Central South University, Changsha 410083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shusheng","family":"Lin","sequence":"additional","affiliation":[{"name":"Liuzhou Chenglong Special Purpose Vehicle Co., Ltd., Liuzhou 545006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donghua","family":"Lan","sequence":"additional","affiliation":[{"name":"Guangxi Guangtou Liuzhou Aluminum Co., Ltd., Liuzhou 545001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenhui","family":"Huang","sequence":"additional","affiliation":[{"name":"Guangxi Guangtou Liuzhou Aluminum Co., Ltd., Liuzhou 545001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Guangdong Hoshion Industrial Aluminium Co., Ltd., Zhongshan 528463, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wengang","family":"Chen","sequence":"additional","affiliation":[{"name":"Dongfeng Liuzhou Motor Co., Ltd., Liuzhou 545006, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Zhou, B., Liu, B., and Zhang, S. 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