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压力对挤压铸造AZ91-Ca合金组织与力学性能的影响
作者:庞 松   作者单位:浙江大学   期刊:特种铸造及有色合金
关键字:   出版单位:特铸杂志社

作者简介

中文摘要

AZ91-Ca合金为研究对象,采用光学显微镜(OM)、差示扫描量热仪(DSC)、X射线衍射仪(XRD)和带能谱分析(EDX)的扫描电镜(SEM)等分析手段,研究了挤压铸造过程中压力变化对AZ91-1Ca合金显微组织和力学性能的影响规律,分析了压力对挤压铸造过程中合金晶粒细化与铸造缺陷抑制的作用机制。

关键词挤压铸造;AZ91Ca合金;压力;显微组织;力学性能

中图分类号TG146.22;TG249.2 文献标志码:A      DOI10.15980/j.tzzz.2017.01.018

 

发布日期2017年第37卷第01

英文摘要

Influence of Pressure on Microstructure and Mechanical Properties of Squeeze Casting AZ91-Ca Alloys

Pang Song1, 2, Zhu Xiurong2, Xu Yongdong2, Ren Zheng2 , Liu Chen1, 2,Zhang Xiao2, Zhao Xinbing1, Zhang Yang3

1.School of Materials Science and Engineering, Zhejiang University; 2.Ningbo Branch of China

Ordnance Science Institute; 3.School of Materials Engineering, Jiangsu University of Technology

Abstract:Using optical microscopy (OM), differential scanning calorimetry (DSC), X-ray diffractometer (XRD) and scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX), influences of pressure on microstructure and mechanical properties of the squeeze casting AZ91-1 Ca alloys were investigated. Effects of pressure on grain refinement and casting defects in the alloy were analyzed theoretically. Mechanism of grain refinement and defect elimination in AZ91-1Ca alloy during squeezing casting process were described.

 

Key Words: Squeeze Casting, AZ91-Ca Alloy, Pressure, Microstructure, Mechanical Properties

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