| dc.contributor |
Edwards, KL |
|
| dc.contributor |
Edwards, KL |
|
| dc.creator |
Nowak, M |
|
| dc.creator |
Bolzoni, L |
|
| dc.creator |
Hari Babu, N |
|
| dc.date |
2015-01-05T15:33:11Z |
|
| dc.date |
2019-05-27T14:13:52Z |
|
| dc.date |
2019-05-27T14:13:52Z |
|
| dc.date |
2014-09-06 |
|
| dc.date.accessioned |
2022-05-25T14:53:52Z |
|
| dc.date.available |
2022-05-25T14:53:52Z |
|
| dc.identifier |
https://bura.brunel.ac.uk/handle/2438/9653 |
|
| dc.identifier |
Nowak, M., Bolzoni, L. and Hari Babu, N. (2015) 'Grain refinement of Al-Si alloys by Nb-B inoculation. Part I: concept development and effect on binary alloys', Materials and Design, 2014, 66 (Part A), pp. 366 - 375 (10). doi: 10.1016/j.matdes.2014.08.066. |
|
| dc.identifier |
1873-4197 |
|
| dc.identifier |
https://bura.brunel.ac.uk/handle/2438/18220 |
|
| dc.identifier |
https://doi.org/10.1016/j.matdes.2014.08.066 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/172712 |
|
| dc.description |
This article has been made available through the Brunel Open Access Publishing Fund. |
|
| dc.description |
The effect of Nb-B inoculation on Al-Si alloys for their grain refinement has been studied through the analysis of binary Al-xSi (where x = 1-10 wt.%) to avoid possible effects of other alloying elements. In Part I of this work the concept development of the Nb-B inoculation is discussed in detail on the basis of the theoretical and fundamental concepts employed (i.e. pro-peritectic particles formation, lattice structures and mismatch as well as analogies between the Al-Ti/Al-Nb or Ti-Si/Nb-Si binary phase diagrams). The systematic study of the addition of different level of Nb-B inoculation to pure Al permitted to determine the best addition rate. From the microstructural and thermal analysis of binary Al-xSi alloys it is found that Nb-B based inoculation is highly suitable for Al-Si alloy with Si content greater than 6 wt.%. As results of the Nb-B inoculation the microstructural features of binary Al-xSi alloys (i.e. primary Al α-grains and eutectic phase) are significantly refined. Most importantly, the inoculation of Al-Si cast alloys with Nb-B is not characterised by any visible poisoning effect (i.e. formation of silicides) which is the drawback of using commercial Al-Ti-B master alloys on Al cast alloys. The effect of Nb-B inoculation on commercial Al-Si alloys (which normally include other alloying elements in their chemical composition) is assessed in Part II of this work. |
|
| dc.description |
The authors are thankful for the financial support from the Engineering and Physical Sciences Research Council (EPSCR) through the EP/J013749/1 Project. |
|
| dc.format |
366 - 375 (10) |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.relation |
https://bura.brunel.ac.uk/handle/2438/9653 |
|
| dc.relation |
2438/9653 |
|
| dc.relation |
Materials and Design |
|
| dc.subject |
Al alloys |
|
| dc.subject |
Binary alloys |
|
| dc.subject |
Grain refinement |
|
| dc.subject |
Heterogeneous nucleation |
|
| dc.subject |
Nb–B inoculation |
|
| dc.title |
Grain refinement of Al-Si alloys by Nb-B inoculation. Part I: concept development and effect on binary alloys |
|
| dc.type |
Article |
|