Yu-ze LI , Long-fei ZHU , Xin WANG , Song TANG , Ting LUO , Jian-yuan WANG
{"title":"Low-temperature pressureless consolidation of AlSi10Mg powders by low-intensity ultrasound","authors":"Yu-ze LI , Long-fei ZHU , Xin WANG , Song TANG , Ting LUO , Jian-yuan WANG","doi":"10.1016/S1003-6326(24)66684-7","DOIUrl":null,"url":null,"abstract":"<div><div>Low-intensity ultrasound was applied to the pressureless consolidation of AlSi10Mg powders in a broad temperature range from 600 to 860 °C. Under static conditions, the consolidation of AlSi10Mg powders can only be achieved at 860 °C, but still with the presence of some residual unconsolidated regions. The introduction of low-intensity ultrasound at this temperature eliminates the unconsolidated regions and transforms the columnar grains observed in original directional solidification into equiaxed or globular grains. Remarkably, the application of low-intensity ultrasound significantly reduces the consolidation temperature to 620 °C, without compromising the microhardness of the resulting samples when compared to static conditions. Furthermore, by lowering the temperature to 600 °C, a well-sintered porous material is obtained through the assistance of the low-intensity ultrasound.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 2","pages":"Pages 349-361"},"PeriodicalIF":4.7000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of Nonferrous Metals Society of China","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003632624666847","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
Low-intensity ultrasound was applied to the pressureless consolidation of AlSi10Mg powders in a broad temperature range from 600 to 860 °C. Under static conditions, the consolidation of AlSi10Mg powders can only be achieved at 860 °C, but still with the presence of some residual unconsolidated regions. The introduction of low-intensity ultrasound at this temperature eliminates the unconsolidated regions and transforms the columnar grains observed in original directional solidification into equiaxed or globular grains. Remarkably, the application of low-intensity ultrasound significantly reduces the consolidation temperature to 620 °C, without compromising the microhardness of the resulting samples when compared to static conditions. Furthermore, by lowering the temperature to 600 °C, a well-sintered porous material is obtained through the assistance of the low-intensity ultrasound.
期刊介绍:
The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.