Effect of Heat Treatment on Mechanical Properties …
227
2. From scanning electron microscopy observation and resultant micrographs, it
was observed that size of the reinforcing TiB 2 particles was essentially nonuniform, irregular in shape, and dispersed through the aluminum alloy metal
matrix.
3. There was no sign and/or evidence for the formation and presence of the Al 3 Ti
phase as predicted by the X-ray diffraction [XRD] analysis.
4. During the experiments it was found that the T6 heat treatment provided a significant influence on both hardness and ultimate tensile strength of the chosen
aluminum alloy and the synthesized or engineered aluminum alloy composite.
5. In the aluminum alloy matrix, the reinforcing TiB 2 particulates were essentially
thermodynamically stable.
6. During solidification, the reinforcing particulates (TiB 2 ) act as a good nucleating
agent for the α-Al grains while concurrently restricting their growth of the α-Al
grains.
7. When compared to the unreinforced aluminum alloy a noticeably smaller dimple
size was observed for the aluminum alloy metal matrix composite. This is essentially because of an overall refinement in the microstructure as a direct consequence of the addition of reinforcing TiB 2 particulates to the soft aluminum alloy
metal matrix.
8. The growth of dimples was suppressed or curtailed when they are opposed by
hard, brittle, and elastically deforming TiB 2 particulates through the microstructure. Inside the larger-sized dimples the TiB 2 particles were well developed while
also showing a better dispersion through the metal matrix.
References
1. Mozammil S, Karloopia J, Verma R, Jha PK (2019) J Alloy Compd 793:454
2. Mozammil S, Verma R, Karloopia J, Jha PK (2020) J Mater Res Technol 9:8041
3. Mozammil S, Karloopia J, Verma R, Jha PK (2020) J Alloy Compd 826:154184
4. Karloopia J, Mozammil S, Jha P (2019) J Compos Sci 3:28
5. Karloopia J, Mozammil S, Jha PK (2020) JOM72, 2927
6. Sun J, Zhang X, Zhang Y, Ma N, Wang H (2015) Micron 70:21
7. Sadeghian Z, Enayati MH, Beiss P (2009) Powder Metall 54:46
8. Rao VR, Ramanaiah N, Sarcar M (2015) Int Conf Adv Mater Manuf Appl, pp 39–44
9. Mazahery A, Ostad Shabani M (2012) J Mater Eng Perform 21:247
10. Sadeghian Z, Enayati MH, Beiss P (2009) J Mater Sci 44:2566
11. Lu L, Lai MO, Chen FL (1997) Acta Mater 45:4297
12. Ramesh CS, Pramod S, Keshavamurthy R (2011) Mater Sci Eng A 528:4125
13. Ramakoteswara V, Ramanaiah N, Mohiuddin sarcar MM (2016), J Mater Res Technol 5:377
14. Sekar K, AK, Joseph MA (2014) Procedia Mater Sci pp 444–453
15. Manasijevic S, Raic K, Radisa R (2013) Mater Technol 47:585
227
2. From scanning electron microscopy observation and resultant micrographs, it
was observed that size of the reinforcing TiB 2 particles was essentially nonuniform, irregular in shape, and dispersed through the aluminum alloy metal
matrix.
3. There was no sign and/or evidence for the formation and presence of the Al 3 Ti
phase as predicted by the X-ray diffraction [XRD] analysis.
4. During the experiments it was found that the T6 heat treatment provided a significant influence on both hardness and ultimate tensile strength of the chosen
aluminum alloy and the synthesized or engineered aluminum alloy composite.
5. In the aluminum alloy matrix, the reinforcing TiB 2 particulates were essentially
thermodynamically stable.
6. During solidification, the reinforcing particulates (TiB 2 ) act as a good nucleating
agent for the α-Al grains while concurrently restricting their growth of the α-Al
grains.
7. When compared to the unreinforced aluminum alloy a noticeably smaller dimple
size was observed for the aluminum alloy metal matrix composite. This is essentially because of an overall refinement in the microstructure as a direct consequence of the addition of reinforcing TiB 2 particulates to the soft aluminum alloy
metal matrix.
8. The growth of dimples was suppressed or curtailed when they are opposed by
hard, brittle, and elastically deforming TiB 2 particulates through the microstructure. Inside the larger-sized dimples the TiB 2 particles were well developed while
also showing a better dispersion through the metal matrix.
References
1. Mozammil S, Karloopia J, Verma R, Jha PK (2019) J Alloy Compd 793:454
2. Mozammil S, Verma R, Karloopia J, Jha PK (2020) J Mater Res Technol 9:8041
3. Mozammil S, Karloopia J, Verma R, Jha PK (2020) J Alloy Compd 826:154184
4. Karloopia J, Mozammil S, Jha P (2019) J Compos Sci 3:28
5. Karloopia J, Mozammil S, Jha PK (2020) JOM72, 2927
6. Sun J, Zhang X, Zhang Y, Ma N, Wang H (2015) Micron 70:21
7. Sadeghian Z, Enayati MH, Beiss P (2009) Powder Metall 54:46
8. Rao VR, Ramanaiah N, Sarcar M (2015) Int Conf Adv Mater Manuf Appl, pp 39–44
9. Mazahery A, Ostad Shabani M (2012) J Mater Eng Perform 21:247
10. Sadeghian Z, Enayati MH, Beiss P (2009) J Mater Sci 44:2566
11. Lu L, Lai MO, Chen FL (1997) Acta Mater 45:4297
12. Ramesh CS, Pramod S, Keshavamurthy R (2011) Mater Sci Eng A 528:4125
13. Ramakoteswara V, Ramanaiah N, Mohiuddin sarcar MM (2016), J Mater Res Technol 5:377
14. Sekar K, AK, Joseph MA (2014) Procedia Mater Sci pp 444–453
15. Manasijevic S, Raic K, Radisa R (2013) Mater Technol 47:585