[1]邢书明,高文静.液态模锻铝青铜件的凝固组织研究[J].常州大学学报(自然科学版),2021,33(06):1-7.[doi:10.3969/j.issn.2095-0411.2021.06.001]
　XING Shuming,GAO Wenjing.Study on Solidification Structure of Aluminum Bronze Parts Produced by Molten Metal Die Forging(MMDF)[J].Journal of Changzhou University(Natural Science Edition),2021,33(06):1-7.[doi:10.3969/j.issn.2095-0411.2021.06.001]
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液态模锻铝青铜件的凝固组织研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第33卷
期数:
2021年06期
页码:
1-7
栏目:
材料科学与工程
出版日期:
2021-11-28

文章信息/Info

Title:
Study on Solidification Structure of Aluminum Bronze Parts Produced by Molten Metal Die Forging(MMDF)
文章编号:
2095-0411(2021)06-0001-07
作者:
邢书明; 高文静
(北京交通大学机械与电子控制工程学院,北京100044)
Author(s):
XING Shuming;  GAO Wenjing
(School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China)
关键词:
液态模锻(MMDF);  挤压铸造;  铝青铜;  锤头;  凝固组织
Keywords:
molten metal die forging(MMDF);  squeeze casting;  aluminum bronze;  hammer;  solidification structure
分类号:
TG 316.3
DOI:
10.3969/j.issn.2095-0411.2021.06.001
文献标志码:
A
摘要:
铝青铜是重要的防爆材料、模具材料和耐磨材料,但其熔炼过程易氧化、工艺性能差, 极易产生裂纹和疏松缺陷。采用液态模锻工艺进行了铝青铜件的成形研究, 对比研究了液态模锻与砂型铸造铝青铜件的组织特征, 揭示了液锻铝青铜件的非平衡凝固路径和流变补缩机理。结果表明, 液态模锻铝青铜的组织比砂型铸造件组织显著细化、且均匀。随着液锻压力的提高, 基体晶粒尺寸和二次枝晶臂间距进一步细化。
Abstract:
Aluminum bronze is an important explosion-proof material and die material. However, its technological performance is poor, and it is easy to produce cracks and shrinkage defects. In this paper, the forming of aluminum bronze octagonal hammer was carried out by molten metal die forging process(MMDF for short). The microstructure characteristics of the hammer between the MMDF and sand casting were experimentally compared. The non-equilibrium solidification path and rheological feeding mechanism of the aluminum bronze by MMDF were revealed. The microstructure of MMDF aluminum bronze hammar is finer than that of sand casting hammer. With the increase of pressure, the matrix grain size and secondary dendrite arm spacing are further refined.

参考文献/References:

[1]KARIMI A, MARTIN J L. Cavitation erosion of materials[J]. International Metals Reviews, 1986, 31(1): 1-26.
[2]NAKAJIMA H. Fabrication, properties and application of porous metals with directional pores[J]. Progress in Materials Science, 2007, 52(7): 1091-1173.
[3]王海燕, 李雅莉, 谌岩, 等. 高压处理对铝青铜组织与抗压强度的影响[J]. 高压物理学报, 2013, 27(4): 500-504.
[4]韦天升, 林高用, 蔡阳中, 等. 特种铸造方式下QAl10-4-4铝青铜组织演变规律[J]. 有色金属加工, 2013, 42(1): 13-18.
[5]洪慎章, 曾振鹏. 铜合金八角锤液态模锻工艺[J]. 机械工人(热加工), 2001(2): 36-37.
[6]胡汉起. 金属凝固原理[M]. 2版. 北京: 机械工业出版社, 2000.
[7]MURRAY J L. The aluminium-copper system[J]. International Materials Reviews, 1985, 30(1): 211-234.
[8]RIZI M S, KOKABI A H. Microstructure evolution and microhardness of friction stir welded cast aluminum bronze[J]. Journal of Materials Processing Technology, 2014, 214(8): 1524-1529.
[9]CALLCUT V A. Aluminum bronze for industrial use[J]. Metals and Materials, 1989, 5(3): 128-132.
[10]NAIR S, SELLAMUTHU R, SARAVANAN R. Effect of nickel content on hardness and wear rate of surface modified cast aluminum bronze alloy[J]. Materials

相似文献/References:

[1]邢书明,邢若兰.液态模锻(挤压铸造)技术研究与应用进展[J].常州大学学报(自然科学版),2021,33(05):1.[doi:10.3969/j.issn.2095-0411.2021.05.001]
　XING Shuming,XING Ruolan.Research and Application Progress of Molten Metal Die Forging(Squeeze Casting)Technology[J].Journal of Changzhou University(Natural Science Edition),2021,33(06):1.[doi:10.3969/j.issn.2095-0411.2021.05.001]
[2]邢书明,武彤,孙鸿基,等.变形铝合金液态模锻及其研究进展[J].常州大学学报(自然科学版),2022,34(06):1.[doi:10.3969/j.issn.2095-0411.2022.06.001]
　XING Shuming,WU Tong,SUN Hongji,et al.Wrought Aluminum Alloy for Molten Metal Die Forging(MMDF)and Its Progress[J].Journal of Changzhou University(Natural Science Edition),2022,34(06):1.[doi:10.3969/j.issn.2095-0411.2022.06.001]
[3]邢书明,赵必为.液态模锻ZL205A铝铜合金热裂敏感性研究[J].常州大学学报(自然科学版),2021,33(05):8.[doi:10.3969/j.issn.2095-0411.2021.05.002]
　XING Shuming,ZHAO Biwei.Study on Hot Cracking Sensitivity of ZL205A Produced by Melted Metal Die Forging[J].Journal of Changzhou University(Natural Science Edition),2021,33(06):8.[doi:10.3969/j.issn.2095-0411.2021.05.002]

备注/Memo

备注/Memo:
收稿日期:2021-06-12。
基金项目:中央高校基本科研业务费专项基金资助项目(2020YJS146)。
作者简介:邢书明(1962—), 男, 河北平山人, 博士, 教授。E-mail: smxing@bjtu.edu.cn
更新日期/Last Update: 1900-01-01