雾化压力对电极感应熔炼气雾化TC4粉末形貌与性能的影响

Abstract
Figure/Table
References
Related Citation (1)

Download: PDF (645 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract TC4 powder was fabricated by electrode-induced melting gas atomization. The properties of TC4 powder were characterized by laser particle size analyzer, scanning electron microscopy (SEM), powder comprehensive-performance analyzer and true density analyzer. The effects of atomization pressure on the yield of powders with particle size <53 μm, mean size, morphology, hollow powder, apparent density and fluidity were studied. The results show that the mean size of TC4 powder and the fine-powder yield increases with increasing gas-atomized pressure (3.5-6.0 MPa). The powder with more spherical and less satellite-ball, mean size of 69.4 μm, fine particle yield of 23.0%, the relative density of 99.1%, the apparent density of 2.40 g/cm³, the flow ability of 22.4 s/50 g can be obtained when the gas-atomized pressure is 3.5 MPa. When the gas-atomized pressure is 6.0 MPa, the mean size of TC4 powder is 48.6 μm and the yield of powder ranging from 0 to 53 μm is 40.8%. With further increasing the gas-atomized pressure, the mean size of the powder increases, the yield of fine powder decreases, the number of satellite-ball powder increases, the degree of sphericity becomes worse. The apparent density and fluidity decrease with increasing gas-atomized pressure.

Key words： TC4 alloy spherical powder electrode-induced gas atomization (EIGA) gas-atomized pressure powder performance

Received: 13 October 2017 Published: 12 July 2019

ZTFLH:

TG146

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	JIN Ying
	LIU Ping
	SHI Jinguang
	WENG Ziqing
	GU Xiaolong

Cite this article:

JIN Ying,LIU Ping,SHI Jinguang, et al. Effects of gas-atomized pressure on morphology and properties of TC4 powder prepared by electrode-induced gas atomization[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(3): 312-317.

URL:

http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2018/V23/I3/312

[1] OLAKANMI E O, COCHRANCE R F, DALGARNO K W.A review on selective laser sintering/melting (SLS/SLM) of aluminium alloy powders: Processing, microstructure, and properties[J]. Progress in Materials Science, 2015, 74(10): 401-477.
[2] SRIMANTA B, SUBHOMOY C, SOURAV M, et al.Microstructure and compression properties of 3D powder printed Ti-6Al-4V scaffolds with designed porosity: Experimental and computational analysis[J]. Materials Science and Engineering C, 2017, 70(1): 812-823.
[3] CHENG Jian, LIU Changsheng, SHANG Shuo.A review of ultrafast laser materials micromachining[J]. Optics & Laser Technology, 2013, 46(3): 88-102.
[4] DIETRICH S, WUNDERER M, HUISSEL A, et al.A new approach for a flexible powder production for additive manufacturing[J]. Procedia Manufacturing, 2016, 6(11): 88-95.
[5] 赵少阳, 陈刚, 谈萍, 等. 球形TC4粉末的气雾化制备、表征及间隙元素控制[J]. 中国有色金属学报, 2016, 26(5): 980-987.
ZHAO Shaoyang, CHEN Gang, TAN Ping, et al.Characterization of spherical TC4 powders by gas atomization and its interstitial elemental control[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(5): 980-987.
[6] HAYK H N, BUNG U Y, YOUNG M K, et al.Gas-phase supported rapid manufacturing of Ti-6Al-4V alloy spherical particles for 3D printing[J]. Chemical Engineering Journal, 2016, 304(15): 232-240.
[7] 贺卫卫, 汤慧萍, 刘咏, 等. PREP法制备高温TiAl预合金粉末及其致密化坯体组织研究[J]. 稀有金属材料与工程, 2014, 43(11): 2678-2773.
HE Weiwei, TANG Huiping, LIU Yong, et al.Preparation of PREP high-temperature TiAl pre-alloyed powder and researchonits densification microstructure[J]. Rare Metal Materials and Engineering, 2014, 43(11): 2678-2773.
[8] HEIDLOFF A F, RIEKEN J R, ANDERSON I E, et al.Advanced gas atomization processing for Ti and Ti alloy powder manufacturing[J]. Journal of the Minerals Metals & Materials Society, 2010, 62(5): 35-41.
[9] 《中国航空材料手册》编辑委员会. 中国航空材料手册(第4卷)[M]. 北京: 中国标准出版社, 2001: 195-196.
The Editorial board of China aeronautical Materials Handbook. China aeronautical Materials Handbook (the forth volume)[M]. Beijing: Standards Press of China, 2001: 195-196.
[10] YOUNGMOO Kim, EUN-PYO Kim, YOUNG-BEOM Song, et al.Microstructure and mechanical properties of hot isostatically pressed Ti-6Al-4V alloy[J]. Journal of Alloys and Compounds, 2014, 603(1): 207-212.
[11] 黄培云. 粉末冶金原理[M]. 北京: 冶金工业出版社, 2008: 93-104.
HUANG Peiyun.Principle of Powder Metallurgy[M]. Beijing: Beijing Industrial Press, 2008: 93-104.
[12] WEI Mingwei, CHEN Suiyuan, LIANG Jing, et al.Effect of atomization pressure on the breakup of TA15 titanium alloy powder prepared by EIGA method for laser 3D printing[J]. Vacuum, 2017, 143(9): 185-194.
[13] 刘辛, 骆接文, 谢焕文, 等. 惰性气体雾化法制备TiAl3粉末的特性[J]. 中国有色金属徐学报, 2010, 20(1): 253-256.
LIU Xin, LUO Jiewen, XIE Huanwen, et al.Characteristics of TiAl3 powder prepared by inert gas atomization[J]. Transactions of Nonferrous Metals Society of China, 2010, 20(1): 253-256.
[14] 秦国义, 王剑华, 蔡宏忠, 等. 超音速电弧喷射雾化制备的非互溶Ag-10Ni合金粉末的凝固特征[J]. 稀有金属材料与工程, 2007, 36(5): 924-928.
QIN Guoyi, WANG Jianhua, CAI Hongzhong, et al.Rapid solidification features of Ag-10Ni immiscible alloy by ultrasonic arc spray gas atomization[J]. Rare Metal Materials and Engineering, 2007, 36(5): 924-928.
[15] 耿江江, 刘允中, 王腾. 组合雾化过程中熔滴的飞行动力学与热历史的数值模拟[J]. 粉末冶金材料科学与工程, 2017, 22(1): 1-8.
GENG Jiangjiang, LIU Yunzhong, WANG Teng.Numerical simulation of droplet flying dynamic and thermal history in the process of combination atomization[J]. Materials Science and Engineering of Powder Metallurgy, 2017, 22(1): 1-8.