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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:

期数:

2006年01期

页码:

41-44

栏目:

出版日期:

2006-02-25

文章信息/Info

Title:

Study of the Process, Structure and Properties of the Semi-Solid ZAZ7 Alloy by Electromagnetic Stirring

作者:

苗乃明

江苏工业学院机械工程系, 江苏 常州 2 1 3 0 1 6

Author(s):

MIAO Nai-ming

Department of Mechanical Engineering, Jiangsu Polytechnic University, Changzhou 213016, China

关键词:

半固态;  电磁搅拌;  Z A 27 合金;  组织;  性能

Keywords:

semi-solid;  electromagnetic stirring;  ZA27 alloy;  microstructure;  properties

分类号:

TG 249

文献标志码:

A

摘要:

采用电磁搅拌装置制备Z A 27 合金半固态浆料, 研究不同搅拌参数对非枝晶组织和性能的影响。结果表明: 搅拌电流越 大, 晶粒越细小致密, 搅拌时间短不足以打碎、 圆整Z A 27 凝固时的先结晶组织, 搅拌时间长, 先结晶相易发生聚集长大, 导 致力学性能下降。搅拌时间10 m in 左右, Z A 27 合金的组织和性能较佳。

Abstract:

ZA27 semi-solid slurries were prepared by electromagnetic stirring setting, the effect of differ? ent stirring parameters on non-dendritic structure and its mechanical properties have been studied. Re? sults of experiments are as follows: grains of crystals are fine and close along with the increase of electric current. When the stirring time is short, it is difficult to break up and round the microstructure of earlier crystals. When the stirring time is long, earlier crystal phase is easy to conglomeration and grow up, it weakens the mechanical properties of ZA27 alloy. When the stirring time is about 10 min, the structure and properties of ZA27 alloy are better.

备注/Memo

备注/Memo:

作者简介: 苗乃明( 1 9 7 7 一) , 男, 山东寿光人, 硕士

常用功能

更新日期/Last Update: 2006-01-25