Recovery and characterization studies of post-production alloy waste from the automotive industry
Authors:
- Sylwester Żelazny,
- Witold Żukowski,
- Dariusz Bogdał,
- Szczepan Bednarz,
- Wiktor Kasprzyk,
- Tomasz Świergosz
Abstract
Superalloys provide high corrosion resistance and are widely used as high-performance materials in aerospace, automotive, chemical, and other industries. Herein, the investigation into the characteristics and properties of alloy waste; Inconel 625, Inconel 718, and Titanium Grade 5, from the automotive industry, was introduced as a result of a recovery in various processes. For this reason, the following procedures were carried as follows; the washing process to remove oil from the swarf was evaluated using several commercial agents and for the process of thermal disposal of processing fluids, a temperature of 900 °C was used in a muffle furnace without air access. The presented studies show that the commercially available series of washing agents did not modify the composition of the surface. However, the high temperatures during the calcination of oil residues are affecting the elemental composition of the alloys. According to the results of the analyses, it is not possible to remove 100% of the oil residues from alloy waste using washing agents based on light organic fractions; however, the effectiveness of this method reaches 99%. In this report, accurate SEM-EDS analyses show changes that occur on the surface after machining and removal of processing fluids. The NMR and GC/MS investigations indicate contaminants as a mixture of aliphatic and cycloaliphatic hydrocarbons with carbon numbers from C8–C30.
- Record ID
- CUT922d3199c22e4135b00fe1209b2c2f89
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2020
- Vol
- 13
- No
- 24
- Pages
- [1-13]
- Article number
- 5600
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 12-13; Bibliografia (liczba pozycji) - 29; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 13, Iss. 24, Spec. Iss.
- Substantive notes
- Special Issue: High Temperature Alloys and Intermetallic Materials
- Keywords in English
- alloy waste, Inconel 625, Inconel 718, Titanium Grade 5, thermal process, washing process, recovery, characterization, surface degradation, NMR, GC/MS, SEM-EDS
- DOI
- DOI:10.3390/ma13245600 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/13/24/5600 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Publication indicators
- = 2
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT922d3199c22e4135b00fe1209b2c2f89/
- URN
urn:pkr-prod:CUT922d3199c22e4135b00fe1209b2c2f89
* 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.