{"title":"新型Al-5Nb-RE-B中间合金的组织与细化性能","authors":"Wu Xiaoyan , Zhang Huarui , Jiang Feng , Yun Ying , Jia Lina , Zhang Hu","doi":"10.1016/S1875-5372(18)30174-7","DOIUrl":null,"url":null,"abstract":"<div><p>A new kind of grain refiner Al-5Nb-RE-B master alloy with uniform microstructure was prepared by melt reaction method. The effect of Al-5Nb-RE-B inoculation on grain refinement of A356 aluminum alloy was studied. The results show that the Al-5Nb-RE-B master alloy consists of <em>α</em>-Al phase, Al3RE, Nb2Al20RE, and NbB2 phases. When the prepared Al-5Nb-RE-B master alloy was added in an amount of 1.0 wt%, the grain size of the A356 alloy was reduced from 800 μm to 200 μm. Analysis of the A356 alloy solidified at a wide range of cooling rates indicate that 1.0 wt% Al-5Nb-RE-B inoculation exhibits the lowest sensitivity to cooling rate.</p></div>","PeriodicalId":21056,"journal":{"name":"稀有金属材料与工程","volume":"47 7","pages":"Pages 2017-2022"},"PeriodicalIF":0.6000,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1875-5372(18)30174-7","citationCount":"6","resultStr":"{\"title\":\"Microstructure and Grain Refinement Performance of a New Al-5Nb-RE-B Master Alloy\",\"authors\":\"Wu Xiaoyan , Zhang Huarui , Jiang Feng , Yun Ying , Jia Lina , Zhang Hu\",\"doi\":\"10.1016/S1875-5372(18)30174-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A new kind of grain refiner Al-5Nb-RE-B master alloy with uniform microstructure was prepared by melt reaction method. The effect of Al-5Nb-RE-B inoculation on grain refinement of A356 aluminum alloy was studied. The results show that the Al-5Nb-RE-B master alloy consists of <em>α</em>-Al phase, Al3RE, Nb2Al20RE, and NbB2 phases. When the prepared Al-5Nb-RE-B master alloy was added in an amount of 1.0 wt%, the grain size of the A356 alloy was reduced from 800 μm to 200 μm. Analysis of the A356 alloy solidified at a wide range of cooling rates indicate that 1.0 wt% Al-5Nb-RE-B inoculation exhibits the lowest sensitivity to cooling rate.</p></div>\",\"PeriodicalId\":21056,\"journal\":{\"name\":\"稀有金属材料与工程\",\"volume\":\"47 7\",\"pages\":\"Pages 2017-2022\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2018-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1875-5372(18)30174-7\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"稀有金属材料与工程\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1875537218301747\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"稀有金属材料与工程","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1875537218301747","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Microstructure and Grain Refinement Performance of a New Al-5Nb-RE-B Master Alloy
A new kind of grain refiner Al-5Nb-RE-B master alloy with uniform microstructure was prepared by melt reaction method. The effect of Al-5Nb-RE-B inoculation on grain refinement of A356 aluminum alloy was studied. The results show that the Al-5Nb-RE-B master alloy consists of α-Al phase, Al3RE, Nb2Al20RE, and NbB2 phases. When the prepared Al-5Nb-RE-B master alloy was added in an amount of 1.0 wt%, the grain size of the A356 alloy was reduced from 800 μm to 200 μm. Analysis of the A356 alloy solidified at a wide range of cooling rates indicate that 1.0 wt% Al-5Nb-RE-B inoculation exhibits the lowest sensitivity to cooling rate.
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