[1]彭浩平,徐 宁,何祖新,等.Mg对机械能助渗铝锌渗层组织的影响[J].常州大学学报(自然科学版),2019,31(04):39-44.[doi:10.3969/j.issn.2095-0411.2019.04.006]
　PENG Haoping,XU Ning,HE Zuxin,et al.Effect of Mg on Mechanically Assisted Infiltration of Aluminum-Zinc Layer[J].Journal of Changzhou University(Natural Science Edition),2019,31(04):39-44.[doi:10.3969/j.issn.2095-0411.2019.04.006]
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Mg对机械能助渗铝锌渗层组织的影响()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第31卷
期数:
2019年04期
页码:
39-44
栏目:
材料科学与工程
出版日期:
2019-07-28

文章信息/Info

Title:
Effect of Mg on Mechanically Assisted Infiltration of Aluminum-Zinc Layer
文章编号:
2095-0411(2019)04-0039-06
作者:
彭浩平1; 2; 3; 徐 宁2; 何祖新1; 王建华2; 3; 涂 浩2; 3; 沈圣哲2; 苏旭平2; 3
(1.常州大学 江苏省材料表面科学与技术重点实验室,江苏 常州 213164; 2.常州大学 江苏省油气储运技术重点实验室,江苏 常州 213164; 3.常州大学 材料科学与工程国家级实验教学示范中心,江苏 常州 213164)
Author(s):
PENG Haoping1; 2; 3;  XU Ning2;  HE Zuxin1;  WANG Jianhua2; 3;  TU Hao2; 3;  SHEN Shengzhe2;  SU Xuping2; 3
(1.Jiangsu Key Laboratory of Material Surface Science and Technology,Changzhou University,Changzhou 213164,China; 2.Jiangsu Key Laboratory of Oil & Gas Storage and Transportation Technology,Changzhou University,Changzhou 213164,China; 3.Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering,Changzhou University,Changzhou 213164,China)
关键词:
机械能助渗;  Al-Zn-Mg共渗;  渗层组织
Keywords:
mechanical energy aided diffusion;  Al-Zn-Mg diffusion;  diffusion layer
分类号:
TG 156.8
DOI:
10.3969/j.issn.2095-0411.2019.04.006
文献标志码:
A
摘要:
采用机械能助渗技术在420 ℃下对20钢进行Al-Zn-Mg共渗实验,利用扫描电子显微镜(SEM)对渗层进行分析,探讨镁元素对渗层组织和厚度的影响,并测定了铝、镁元素在渗层中的分布; 分析助渗时间对渗层组织的影响。实验结果表明:渗层中镁含量的升高会促进渗层组织由单相向多相发生转变,并使渗层厚度增加,特别是当镁元素质量分数超过5%后,渗层厚度增幅大,出现使渗层组织稀松的ζ相,镁铝元素以固溶体的形式存在于渗层中; 在渗剂配比相同情况下,助渗时间延长渗层组织由单相δ相向δ相、Г相和ζ相三相转变。由此可得应合理控制镁元素的添加量在3%～5%范围内,避免助渗时间过长,以不超过3 h为宜。
Abstract:
This study implemented Al-Zn-Mg co-infiltration experiment on 20 steel at 420 ℃ by using mechanical-energy infiltration technology, analyzed alloying layer by using SEM, discussed the effect of magnesium on the microstructure and thickness of alloying layer, investigated the distribution of aluminum and magnesium in the alloying layer, and discussed the influence of infiltration time on the microstructure of alloying layer. The research showed that with the increasement of magnesium content, alloying layer became thicker and its structure transformed from single-phase to multi-phase. Especially, when the mass percentage of magnesium exceeded 5%, the thickness of the layer was obviously thickened, ζ phase which makes alloying layer looser appeared, and the form of magnesium and aluminum existed in alloying layer was solid solution. With the same infiltration agent ratio, the infiltration time prolongs the microstructure of the layer from the single-phase to multiphase phase. Therefore, we could conclude that the addition of magnesium element should range from 3% to 5%, and the infiltration time shouldn’t exceed 3 hours.

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备注/Memo

备注/Memo:
收稿日期:2018-06-12。
基金项目:国家自然科学基金资助项目(51671037); 江苏省研究生科研与实践创新计划资助项目(SJCX17_0712,SJCX17_0720)。
作者简介:彭浩平(1982—),男,湖南长沙人,博士,副教授。E-mail:penghp@cczu.edu.cn
更新日期/Last Update: 2019-07-16