添加松香和淀粉对铁基合金粉末激光成形试样组织和力学性能的影响

doi:10.11896/cldb.18010137

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (2266KB)
Export: BibTeX | EndNote (RIS)

Abstract There were two types of specimens formed on steel substrate in experiment by using a 5 kW cross-flow CO₂ laser. One was the net iron-based alloy powder sample, while the other was a sample of the rosin and starch double-layer micro-membrane coated iron-based alloy powder. The composite, microstructure and mechanical properties of those two types of test specimens were then investigated experimentally. It suggested that the rosin and starch double-layered micro-membrane was gasified and burnt in the laser weld pool. Along with that transient reductive atmosphere formed. This atmosphere then protected the formed powder from reducing loss caused by oxygen oxidation. The rate of Cr, Ni, and Si in the micro-membrane coated powder sample increase by an average of 0.12% compared with that of the net powder sample and the content of C and B rate were also increased by an average of 0.015% compared with that of the net powder specimen. Furthermore, the porosity and slag inclusion of the micro-membrane coated powder sample are reduced which rendered an improvement in the quality of the formed sample. The ave-rage Rockwell hardness and average tensile strength of the rosin and starch double-layer micro-film coated powder samples are 56.12HRC and 1 847 MPa, respectively, which are 4.7% and 16.2% higher than uncoated powder samples, respectively.

Key words： laser forming rosin starch double-layered micro-membrane coating microstructure

Published: 21 May 2019

CLC number:

TG456

Fund:This work was financially supported by the National Natural Science Foundation of China (51474130), Key Laboratory of Colleges and Universities in Hunan Province (No. 85 of Hunan Finance and Education Instruction [2014])

About author:: Wei Chen graduated from University of South China in July 2017 with a master’s degree in engineering. Conducted research under the guidance of Professor Qiu Changjun. At present, the main research field is laser forming technology.Changjun Qiu, professor of University of South China, tutor of doctoral tutor, leader of mechanical engineering discipline of key disciplines in Hunan Province, se-cond-level candidate of the first batch of 121 talent projects in Hunan Province, academic leader of Hunan Province, nuclear power equipment and its safe service technology Hunan the leader of the provincial science and techno-logy innovation team, the first council member of the Hunan European and American Association of Overseas Students, the member of the Hunan Provincial Higher Education Teacher’s Qualifications Evaluation Committee, the vice chairman of the Hunan Instrument and Instrumentation Society, and the equipment safety service
technology in special circumstances. The person in charge of the Provincial Key Laboratory of Colleges and Universities. He has been engaged in nuclear facility safety engineering and decommissioning treatment technology, nuclear equipment metal materials safety service and surface modification technology for a long time. He has presided over one major research project of the Natio-nal Natural Science Foundation of China, three projects on the surface, and one national special project for science and technology. He has published more than 50 papers in high-impact factor publications at home and abroad, including more than 30 articles in SCI and EI, 3 invention patents, and 1 second prize in science and technology progress by the National Defense Science and Technology Commission.

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Wei
	QIU Changjun
	YAN Mengda
	HE Yuanwei
	ZHANG Jingyi
	QI Linsen

Cite this article:

CHEN Wei,QIU Changjun,YAN Mengda, et al. Effect of Rosin and Starch Additives on the Microstructure and Mechanical Properties of Fe-based Alloy Powder Laser Forming Sample[J]. Materials Reports, 2019, 33(11): 1848-1852.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.18010137 OR http://www.mater-rep.com/EN/Y2019/V33/I11/1848

1 Xu J T, Li A, Liu D, et al. Chinese Journal of Lasers,2016,43(3),72(in Chinese).
徐金涛,李安,刘栋,等.中国激光,2016,43(3),72.
2 Deva A, Jha N K, Jha B K. International Journal of Metallurgical Engineering,2012,1(1),1.
3 Xi M Z, Liu J B, Zhao Y, et al. Chinese Journal of Lasers,2016,43(2),51(in Chinese).
席明哲,刘静波,赵毅,等.中国激光,2016,43(2),51.
4 Li S, Zeng X Y, Hu Q W. Transactions of the China Welding Institution,2008,29(7),101(in Chinese).
李胜,曾晓雁,胡乾午.焊接学报,2008,29(7),101.
5 Zhang X D, Dong S Y, Wang Z J, et al.Transactions of the China Welding Institution,2010,31(2),75(in Chinese).
张晓东,董世运,王志坚,等.焊接学报,2010,31(2),75.
6 Deng D W, Sun J H, Wang X L, et al.Chinese Journal of Rare Metals,2016,40(1),20(in Chinese).
邓德伟,孙晋华,王鑫林,等.稀有金属,2016,40(1),20.
7 Fu Z K, Wang W J, Ding H H, et al. Transactions of Materials & Heat Treatment,2015,36(8),217(in Chinese).
付志凯,王文健,丁昊昊,等.材料热处理学报,2015,36(8),217.
8 Zhang C H, Liu J, Wu C L, et al. Transactions of the China Welding Institution,2015,36(1),19(in Chinese).
张春华,刘杰,吴臣亮,等.焊接学报,2015,36(1),19.
9 Feng H, Li J F, Sun J. Chinese Journal of Lasers,2014,41(8),80(in Chinese).
封慧,李剑峰,孙杰.中国激光,2014,41(8),80.
10 Zhang W, Yao J H, Zhang L C. Acta Materiae Compositae Sinica,2017,34(1),142(in Chinese).
张伟,姚建华,张利春.复合材料学报,2017,34(1),142.
11 Nie B Y, Yao C W. Transactions of the China Welding Institution,2013,34(1),85(in Chinese).
聂斌英,姚成武.焊接学报,2013,34(1),85.
12 He Y W. Study on microstructure and properties of laser forming sample of alloy powder coated by organic. Master’s Thesis, University of South China, China,2016(in Chinese).
贺沅玮.有机物包覆合金粉末及其激光成形件组织与性能研究.硕士学位论文,南华大学,2016.
13 Deng X G, Zhang X M. Chinese Journal of Vacuum Science & Technology,2013,33(11),1080(in Chinese).
邓晓刚,张贤明.真空科学与技术学报,2013,33(11),1080.
14 Yang Y L, Liu C S, Zhang D, et al. Journal of Northeastern University (Nature Science),2007,28(9),1289(in Chinese).
杨玉玲,刘常升,张多,等.东北大学学报(自然科学版),2007,28(9),1289.
15 Laeng J, Stewart J G, Liou F W. International Journal of Production Research,2000,38(16),3973.
16 邱长军,贺沅玮,等.中国专利,CN105081313B,2015.
17 Liu W, Zhang Y, Chen Y, et al. Transactions of the China Welding Institution,2015,36(5),73(in Chinese).
刘武,张彦,陈勇,等.焊接学报,2015,36(5),73.
18 Sun Y J, Li S N, Shang Y, et al. Journal of Materials Science & Engineering,2013,31(1),34(in Chinese).
孙跃军,李思南,尚勇,等.材料科学与工程学报,2013,31(1),34.
19 Yang W Y, Dong R F, Gao F, et al. Iron & Steel,2015,50(2),76(in Chinese).
杨维宇,董瑞峰,高峰,等.钢铁,2015,50(2),76.