The effect of nitrogen flow rate on Acrawax C decomposition and its removal during sintering of Alumix 431 D grade powder
Authors:
- Pieczonka T.,
- Jan Kazior J.,
- Laska M.
Abstract
Alumix 431D pre-alloyed powder (ECKA Granules GmbH) containing 1.5 mass% of Acrawax C was used to study the effect of nitrogen flow rate on delubrication and sintering evolution. Mass loss of compacts during heating was controlled by the TG method using a STA Netzsch apparatus coupled with a mass spectrometer. The latter was used to identify the volatile lubricant’s decomposition products. Macro- and microstructural observations of sintered compacts were also performed. The results documented a strong influence of nitrogen flow rate on delubrication and thus on the sintering behaviour of examined powder. High nitrogen flow rate is required to produce the desired sintered compacts. In contrast, at low nitrogen velocity, the lubricant removal is not complete, which leads to the formation of carbonaceous residuals in the form of soot, which in turn significantly impedes densification and deteriorates the sintered products.
- Record ID
- CUT603d7217ce834e078d3d92ea0d3f63e2
- Publication categories
- ;
- Author
- Journal series
- Powder Metallurgy, ISSN 0032-5899, e-ISSN 1743-2901
- Issue year
- 2018
- Vol
- 61
- No
- 2
- Pages
- 149-156
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 55-56; Bibliografia (liczba pozycji) - 27; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 61, No 2
- Keywords in English
- aluminium powder, metallurgy, delubrication, thermal analysis, mass spectrometry, sooting
- DOI
- DOI:10.1080/00325899.2017.1410999 Opening in a new tab
- URL
- https://www.tandfonline.com/doi/full/10.1080/00325899.2017.1410999 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 25
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT603d7217ce834e078d3d92ea0d3f63e2/
- URN
urn:pkr-prod:CUT603d7217ce834e078d3d92ea0d3f63e2
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.