压力对挤压铸造AZ91-Ca合金组织与力学性能的影响

庞松; 朱秀荣; 徐永东; 任政; 刘辰; 张潇; 赵新兵; 张扬

doi:10.15980/j.tzzz.2017.01.018

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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
Influence of Pressure on Microstructure and Mechanical Properties of Squeeze Casting AZ91-Ca Alloys
2017年37卷第1期页码：65-70
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.01.018

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[1]庞松,朱秀荣,徐永东,任政,刘辰,张潇,赵新兵,张扬.压力对挤压铸造AZ91-Ca合金组织与力学性能的影响[J].特种铸造及有色合金,2017,37(01):65-70.

Pang Song, Zhu Xiurong, Xu Yongdong, et al. Influence of Pressure on Microstructure and Mechanical Properties of Squeeze Casting AZ91-Ca Alloys[J]. Special Casting & Nonferrous Alloys, 2017,37(1):65-70.
[1]庞松,朱秀荣,徐永东,任政,刘辰,张潇,赵新兵,张扬.压力对挤压铸造AZ91-Ca合金组织与力学性能的影响[J].特种铸造及有色合金,2017,37(01):65-70. DOI： 10.15980/j.tzzz.2017.01.018.

Pang Song, Zhu Xiurong, Xu Yongdong, et al. Influence of Pressure on Microstructure and Mechanical Properties of Squeeze Casting AZ91-Ca Alloys[J]. Special Casting & Nonferrous Alloys, 2017,37(1):65-70. DOI： 10.15980/j.tzzz.2017.01.018.

摘要

以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。

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 AZ91-1Ca 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.