文章摘要
杨化冰,王海超,刘桂亮,刘相法,等.N掺杂型Al-4Ti-1C对A356合金细化及力学性能的影响[J].精密成形工程,2017,9(5):39-43.
N掺杂型Al-4Ti-1C对A356合金细化及力学性能的影响
Refining and Strengthening Performance of N-doped Al-4Ti-1C Refiner on A356 Alloy
投稿时间:2017-08-14  最后修改时间:2017-09-10
DOI:10.3969/j.issn.1674-6457.2017.05.005
中文关键词: Al-4Ti-1C细化剂  A356合金  晶粒细化  力学性能
英文关键词: Al-4Ti-1C refiner  A356 alloy  grain refinement  mechanical properties
基金项目:国家自然科学基金(51071097)
作者单位
杨化冰 山东大学 材料液固结构演变与加工教育部重点实验室济南 250061 
王海超 山东大学 材料液固结构演变与加工教育部重点实验室济南 250061 
刘桂亮 山东吕美熔体技术有限公司济南 250061 
刘相法 山东大学 材料液固结构演变与加工教育部重点实验室济南 250061 
摘要点击次数: 136
全文下载次数: 151
中文摘要:
      目的 提高A356合金的断裂伸长率。方法 采用铸造法制备了一种N掺杂型Al-4Ti-1C细化剂(简称Al-4Ti-1C),研究了其对A356合金的晶粒细化行为及对力学性能的影响。结果 与传统的Al-5Ti-1B细化剂相比,Al-4Ti-1C不仅能有效细化A356的α-Al晶粒,而且能够明显细化其枝晶臂间距,细化后α-Al的平均晶粒尺寸为231 μm,枝晶臂间距为28 μm;而Al-5Ti-1B细化后分别为253 μm和50 μm。该细化剂对A356合金力学性能的提升也优于Al-5Ti-1B,细化后A356的拉伸强度和伸长率为298 MPa, 4.0%,与Al-5Ti-1B的细化结果(292 MPa, 3.0%)相比,伸长率提高幅度达33%。结论 Al-4Ti-1C是一种有效的A356晶粒细化剂。
英文摘要:
      This work aims to improve the elongation at break of A356 alloy. A type of N-doped Al-4Ti-1C (named Al-4Ti-1C) refiner was prepared via casting method, and the refining and strengthening performances of the refiner on A356 alloy were investigated. Compared with the conventional Al-5Ti-1B refiner, Al-4Ti-1C performed well on refining α-Al grains and their dendritic arm spacing, with an average size of 231 μm and 28 μm respectively, while they were just 253 μm and 50 μm when refined by Al-5Ti-1B. The refiner’s improvement on mechanical properties of A356 alloy was also superior to Al-5Ti-1B. When changing refiners from Al-5Ti-1B to Al-4Ti-1C, the ultimate tensile strength (UTS) of A356 increased from 292 MPa to 298 MPa and the elongation increased from 3.0% to 4.0%, with a percentage increase of 33%. Al-4Ti-1C presents to be an effective refiner for A356 alloy.
查看全文   查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第1668910位访问者    渝ICP备10003521号-6

>版权所有:《精密成形工程》编辑部 2014 All Rights Reserved

>邮编:400039 电话:023-68792294传真:02368792396 Email: jmcxgc@163.com

>    

渝公网安备 50010702501719号