CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11892 > Article
Presentation
9 October 2021 Shape memory NiTi powders produced by electrode induction melting gas atomization (EIGA) method for additive manufacturing
Junwei Wang, Dingyong He, Xu Wu, Xingye Guo, Zhen Tan, Zheng Zhou, Wei Shao
Author Affiliations +
Proceedings Volume 11892, Advanced Laser Processing and Manufacturing V; 1189204 (2021) https://doi.org/10.1117/12.2601220
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China
Abstract
With the development of additive manufacturing technology, it provides an efficient method for preparing complex structured NiTi alloy specimens. Different additive manufacturing technologies have different requirements for powder particle size. In order to satisfy the requirements of additive manufacturing technology for powders. This study aimed to produce spherical NiTi powders suitable for additive manufacturing by electrode induction melting gas atomization (EIGA). Scanning electron microscopy, X-ray diffractometry and differential scanning calorimetry were used to investigate the surface and inner micro-morphology, phase constituent and martensitic transformation temperature of the surface and inner of the NiTi powders with different particle sizes. The results show that the powder mean particle size D50 was 75 μm, flowability was 19.3 s/50 g, apparent density was 3.40 g·cm–3, and the oxygen content of the powder only 0.005% higher than the raw materials. That the grain of powder becomes finer gradually with decreasing particle size. Ingot and all the powders exhibit a main B2 phase. Particles with different particle sizes have experienced different cooling rates during atomization. Various cooling rates cause different grain size inside the powder; in particular, the transformation temperature decreases with decreasing particle size. This study provides a basis for preparing high quality AM NiTi parts.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Junwei Wang, Dingyong He, Xu Wu, Xingye Guo, Zhen Tan, Zheng Zhou, and Wei Shao "Shape memory NiTi powders produced by electrode induction melting gas atomization (EIGA) method for additive manufacturing", Proc. SPIE 11892, Advanced Laser Processing and Manufacturing V, 1189204 (9 October 2021); https://doi.org/10.1117/12.2601220
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Additive manufacturing
Particles
Electrodes
Scanning electron microscopy
Oxygen
Raw materials
Spherical lenses
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top