Investigation of the mechanical, corrosion, and tribological characteristics of AZ61 Mg with boron carbide nano particles via the stir casting route

S. Sakthi; S. Mahendran; M. Meignanamoorthy; V. Mohanavel

doi:10.2478/msp-2023-0019

.blurhash-client-img { display: none !important; }

Investigation of the mechanical, corrosion, and tribological characteristics of AZ61 Mg with boron carbide nano particles via the stir casting route

Materials Science-Poland

Volume 41 (2023): Issue 2 (August 2023)

By: S. Sakthi, S. Mahendran, M. Meignanamoorthy and V. Mohanavel

Open Access

|Sep 2023

Figures & Tables

SEM micrographs of nanocomposites of AZ61/B₄C: (a) AZ61 alloy, (b) AZ61/2.5wt%B₄C, (c) AZ61/5wt%B₄C, (d) AZ61/7.5wt%B₄C, (e) AZ61/10wt%B₄C

EDS analysis of nanocomposites of AZ61/B₄C: (a) AZ61 alloy, (b) AZ61/2.5wt%B₄C, (c) AZ61/5wt%B₄C, (d) AZ61/7.5wt%B₄C, (e) AZ61/10wt%B₄C

Table 1.

The density of AZ61/B₄C nanocomposites

Composites	Experimental density g/cm³	Theoretical density g/cm³	Porosity %
A (AZ61-Mg alloy)	1.785	1.790	1.38
B (AZ61 with 2.5wt% B₄C)	1.801	1.824	1.24
C (AZ61 with 5wt% B₄C)	1.814	1.831	1.18
D (AZ61 with 7.5wt% B₄C)	1.826	1.840	1.07
E (AZ61 with 10wt% B₄C)	1.830	1.848	1.04

Table 2.

Tensile characteristics of AZ61/B₄C nanocomposites

Composites	Ultimate tensile strength (MPa)	Yield strength (MPa)	Elongation (%)
A	158	101	10.4
B	166	114	8.6
C	178	126	6.8
D	194	138	5.6
E	182	129	6.0

AZ61/B₄C nanocomposites and the hardness of their relationship

(a) AZ61/B₄C nanocomposites and the compressive strength of their relationship (b) stressstrain curve of AZ61/B₄C nanocomposites

AZ61/B₄C nanocomposites and the impact strength of their relationship

AZ61/ B₄C nanocomposites and the flexural strength of their relationship

Table 3.

Corrosion properties of the AZ61/B₄C nanocomposites

Composites	I_corr (mA/cm²)	E_corr (mV)	Corrosion rate (mils/yr)
A	0.0039751	−753.15	355.37
B	0.0032398	−856.25	338.70
C	0.0030175	−869.60	320.96
D	0.0021956	−916.36	220.47
E	0.0024096	−909.77	240.36

Table 4.

Experimental results

Exp. No.	Wt% B₄C	L (N)	SV (m/s)	SD (m)	WR (mm³/m)	COF
1	0	4	1	400	0.0084	0.482
2	0	8	2	800	0.0076	0.526
3	0	12	3	1200	0.0087	0.489
4	0	16	4	1600	0.0097	0.561
5	2.5	4	2	1200	0.0049	0.597
6	2.5	8	1	1600	0.0075	0.606
7	2.5	12	4	400	0.00672	0.685
8	2.5	16	3	800	0.00789	0.587
9	5	4	3	1600	0.0031	0.774
10	5	8	4	1200	0.0045	0.695
11	5	12	1	800	0.0051	0.763
12	5	16	2	400	0.0068	0.79
13	7.5	4	4	800	0.0031	0.585
14	7.5	8	3	400	0.0039	0.493
15	7.5	12	2	1600	0.0048	0.521
16	7.5	16	1	1200	0.00501	0.566

1 Abbreviations: L, load; SV, sliding velocity; SD, sliding distance, WR, wear rate, COF, coefficient

Contour plot: wt% B₄C vs. sliding distance

Contour plot: wt% B₄C vs. sliding velocity

Table 5.

Calculated S/N ratio as well as the normalized S/N ratio

S/N ratio for wear	S/N ratio for COF	Normalization for wear	Normalization for COF
41.5144	6.3391	0.874	0.000
42.3837	5.5803	0.786	0.177
41.2096	6.2138	0.905	0.029
40.2646	5.0207	1.000	0.307
46.1961	4.4805	0.401	0.433
42.4988	4.3505	0.775	0.463
43.4526	3.2862	0.678	0.711
42.0585	4.6272	0.819	0.399
50.1728	2.2252	0.000	0.959
46.9357	3.1603	0.327	0.741
45.8486	2.3495	0.436	0.930
43.3498	2.0475	0.689	1.000
50.1728	4.6569	0.000	0.392
48.1787	6.1431	0.201	0.046
46.3752	5.6632	0.383	0.157
46.0032	4.9437	0.421	0.325

Table 6.

Calculated deviation sequences for GRC and GRG

Deviation sequence for wear	Deviation sequence for COF	GRC for wear	GRC for COF	GRG	Rank
0.126	1.000	0.799	0.333	0.566	9
0.214	0.823	0.700	0.378	0.539	11
0.095	0.971	0.840	0.340	0.590	7
0.000	0.693	1.000	0.419	0.710	2
0.599	0.567	0.455	0.469	0.462	12
0.225	0.537	0.689	0.482	0.586	8
0.322	0.289	0.608	0.634	0.621	5
0.181	0.601	0.734	0.454	0.594	6
1.000	0.041	0.333	0.924	0.628	4
0.673	0.259	0.426	0.658	0.542	10
0.564	0.070	0.470	0.877	0.673	3
0.311	0.000	0.616	1.000	0.808	1
1.000	0.608	0.333	0.451	0.392	15
0.799	0.954	0.385	0.344	0.364	16
0.617	0.843	0.448	0.372	0.410	14
0.579	0.675	0.463	0.426	0.444	13

Table 7.

Grey relational grade response table

Level	Wt%	L (N)	SV (m/s)	SD (m)
1	4.469	5.954	5.017	4.925
2	5.003	6.024	5.417	5.363
3	3.659	4.974	5.478	5.913
4	7.921	4.099	5.139	4.851
Delta	4.262	1.925	0.46	1.062
Rank	1	2	4	3

AZ61/B₄C nanocomposites and the corrosion behavior of their relationship

Table 8.

ANOVA for Grey relational grade

Source	DF	Adj SS	Adj MS	F Value	P Value	Contribution %
Wt%	3	0.148176	0.049392	16.67	0.022	67.19
L (N)	3	0.045723	0.015241	5.14	0.106	20.73
SV (m/s)	3	0.001433	0.000478	0.16	0.916	0.65
SD (m)	3	0.016302	0.005434	1.83	0.315	7.39
Error	3	0.008889	0.002963
Total	15	0.220523

References

Authors

Metrics

Articles in this issue

DOI: https://doi.org/10.2478/msp-2023-0019 | Journal eISSN: 2083-134X (formerly 2083-124X) | Journal ISSN: 2083-1331

Journal RSS Feed

Language: English

Page range: 227 - 243

Submitted on: Jan 28, 2023

Accepted on: Jul 17, 2023

Published on: Sep 19, 2023

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Keywords:

AZ61/B₄C nanocomposite,

mechanical properties,

corrosion behavior,

stir casting,

tribological characteristics,

Grey Taguchi technique

Related subjects:

Materials sciences,

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2023 S. Sakthi, S. Mahendran, M. Meignanamoorthy, V. Mohanavel, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 41 (2023): Issue 2 (August 2023)

Investigation of the mechanical, corrosion, and tribological characteristics of AZ61 Mg with boron carbide nano particles via the stir casting route

Figures & Tables

Fig. 1.

Fig. 2.

Fig. 3.

Table 1.

Table 2.

Fig. 4.

Fig. 5.

Fig. 6.

Fig. 7.

Table 3.

Table 4.

Fig. 9.

Fig. 10.

Fig. 11.

Fig. 12.

Fig. 13.

Fig. 14.

Table 5.

Table 6.

Table 7.

Fig. 8.

Fig. 15.

Fig. 16.

Fig. 17.

Table 8.

Fig. 18.

Paradigm

My account