On characteristic eutectic free microstructural evolution in hypereutectic Al-Si processed through spark plasma sintering

被引：7

作者：

Saravanan, T. T. ^{[1
,2
]}

Kamaraj, M. ^{[2
]}

Sharma, S. C. ^{[1
]}

Kumaran, S. ^{[3
]}

Chakravadhanula, V. S. K. ^{[1
]}

Ravikanth, K., V ^{[4
]}

Kumar, K. Vinoadh ^{[3
]}

Sreemoolanadhan, H. ^{[1
]}

机构：

[1] Vikram Sarabhai Space Ctr, Mat & Met Grp, Thiruvananthapuram 695022, Kerala, India

[2] Indian Inst Technol Madras, Dept Mat Engn, Chennai 600036, Tamil Nadu, India

[3] Natl Inst Technol, Dept Met & Mat Engn, Tiruchirappalli 620015, Tamil Nadu, India

[4] Bhabha Atom Res Ctr, Mat Grp, Mumbai 400085, Maharashtra, India

来源：

MATERIALS LETTERS | 2020年 / 275卷

关键词：

Spark plasma sintering; Hypereutectic; Microstructure; Powder technology; Current-voltage characteristics; High-angle annular dark field; COMPOSITES; TRANSITION; POWDERS;

D O I：

10.1016/j.matlet.2020.128150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spark plasma sintering aids in characteristic eutectic structure free microstructural evolution in hypereu-tectic Al-Si. The mechanism of suppression of characteristic eutectic was elucidated through current - voltage evolution during sintering, electron backscatter diffraction phase mapping and high-angle annu-lar dark field imaging. The electric current activated eutectic melting at the Al-Si interface followed by rapid heat transfer lead to a microstructural evolution under far from equilibrium condition and free from conventional eutectic structure. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：3

共 11 条

[1]

Britt E., 1971, THESIS

[2] Evolution of microstructure and mechanical properties of as-cast Al-50Si alloy due to heat treatment and P modifier content [J].

Cao, Fuyang ;

Jia, Yandong ;

Prashanth, Konda Gokuldoss ;

Ma, Pan ;

Liu, Jingshun ;

Scudino, Sergio ;

Huang, Feng ;

Eckert, Juergen ;

Sun, Jianfei .

MATERIALS & DESIGN, 2015, 74 :150-156

[3] Fabrication of controlled expansion Al-Si composites by pressureless and spark plasma sintering [J].

Haque, Asraful ;

Shekhar, S. ;

Murty, S. V. S. Narayana ;

Ramkumar, J. ;

Kar, K. ;

Mondal, K. .

ADVANCED POWDER TECHNOLOGY, 2018, 29 (12) :3427-3439

[4] Effect of Current Pathways During Spark Plasma Sintering of an Aluminum Alloy Powder [J].

Kellogg, Frank ;

McWilliams, Brandon ;

Cho, Kyu .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2016, 47A (12) :6353-6367

[5] Effect of electric current on densification behavior of conductive ceramic powders consolidated by spark plasma sintering [J].

Lee, Geuntak ;

Olevsky, Eugene A. ;

Maniere, Charles ;

Maximenko, Andrey ;

Izhvanov, Oleg ;

Back, Christina ;

McKittrick, Joanna .

ACTA MATERIALIA, 2018, 144 :524-533

[6]

Orrù R, 2009, MAT SCI ENG R, V63, P127, DOI [10.1016/j.scienta.2008.09.004, 10.1016/j.mser.2008.09.003]

[7] Neck formation and self-adjusting mechanism of neck growth of conducting powders in spark plasma sintering [J].

Song, XY ;

Liu, XM ;

Zhang, JX .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (02) :494-500

[8] Influence of the grain boundary character on the temperature of transition to complete wetting in the Cu-In system [J].

Straumal, Alexander B. ;

Yardley, Victoria A. ;

Straumal, Boris B. ;

Rodin, Alexei O. .

JOURNAL OF MATERIALS SCIENCE, 2015, 50 (13) :4762-4771

[9] Wetting transition of grain-boundary triple junctions [J].

Straumal, B. B. ;

Kogtenkova, O. ;

Zieba, P. .

ACTA MATERIALIA, 2008, 56 (05) :925-933

[10] Preparation and properties of Sip/Al composites by spark plasma sintering [J].

Yu, J. H. ;

Wang, C. B. ;

Shen, Q. ;

Zhang, L. M. .

MATERIALS & DESIGN, 2012, 41 :198-202

← 1 2 →