Microstructure and Properties of Nano-Hydroxyapatite Reinforced WE43 Alloy Fabricated by Friction Stir Processing
| Autor: | Zhenxing Zheng, Yixiong Liu, Genghua Cao, Lu Zhang, Jixiang Gao, Datong Zhang, Weihua Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Friction stir processing
Fabrication Materials science Alloy Composite number microstructure engineering.material mechanical properties lcsh:Technology Article Corrosion Ultimate tensile strength General Materials Science friction stir processing Composite material lcsh:Microscopy Corrosion behavior lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T WE43/HA composite Microstructure corrosion behavior lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials Volume 12 Issue 18 Materials, Vol 12, Iss 18, p 2994 (2019) |
| ISSN: | 1996-1944 |
| Popis: | This research mainly focuses on the successful fabrication of nano-hydroxyapatite (nHA) reinforced WE43 alloy by two-pass friction stir processing (FSP). Microstructure evolution, mechanical properties, and in vitro corrosion behavior of FSPed WE43/nHA composite and FSPed WE43 alloy were studied. The results show that nHA particles are effectively dispersed in the processing zone, and the well-dispersed nHA particles can enhance the grain refine effect of FSP. The average grain sizes of FSPed WE43 alloy and WE43/nHA composite are 5.7 and 3.3 &mu m, respectively. However, a slight deterioration in tensile strength and yield strength is observed on the WE43/nHA composite, compared to the FSPed WE43 alloy, which is attributed to the locally agglomerated nHA particles and the poor quality of interfacial bonding between nHA particles and matrix. The electrochemical test and in vitro immersion test results reveal that the corrosion resistance of the WE43 alloy is greatly improved after FSP. With the addition of nHA particles, the corrosion resistance of the WE43/nHA composite shows an even greater improvement. |
| Databáze: | OpenAIRE |
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