Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: Effect of Graphite Powder Amount on Surface Films Formed on Molten AZ91D Alloy
作者: Li, Weihong;  Zhou, Jixue;  Ma, Baichang;  Wang, Jinwei;  Wu, Jianhua;  Yang, Yuansheng
发表日期: 2017-10-1
摘要: Graphite powder was adopted to prevent AZ91D magnesium alloy from oxidizing during the melting and casting process. The microstructure of the resultant surface films formed on the molten alloy protected by 0, 2.7, 5.4, 8.1, and 10.8 g dm(-2) graphite powder at 973 K (700 A degrees C) for holding time of 30 minutes was investigated by scanning electron microscopy, energy dispersive spectrometer, X-ray diffraction, and the thermodynamic method. The results indicated that the surface films were composed of a protective layer and the underneath MgF2 particles with different morphology. The protective layer was continuous with a thickness range from 200 to 550 nm consisting of magnesium, oxygen, fluorine, carbon, and a small amount of aluminium, possibly existing in the form of MgO, MgF2, C, and MgAl2O4. The surface films were the result of the interaction between the graphite powder, the melt, and the ambient atmosphere. The unevenness of the micro surface morphology and the number and size of the underneath MgF2 particles increased with graphite powder amount. The mechanism of the effect of graphite powder amount on the resultant surface films was also discussed.
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.

Recommended Citation:
Li, Weihong,Zhou, Jixue,Ma, Baichang,et al. Effect Of Graphite Powder Amount On Surface Films Formed On Molten Az91d Alloy[J]. Springer,2017,48(5):2564-2573.

SCI Citaion Data:
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, Weihong]'s Articles
 [Zhou, Jixue]'s Articles
 [Ma, Baichang]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, Weihong]‘s Articles
 [Zhou, Jixue]‘s Articles
 [Ma, Baichang]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to  Add to Digg  Add to Reddit 
所有评论 (0)
内 容:
Email:  *
验证码:   刷新
标 题:
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.



Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace