Nanoindentation and Cavitation-Induced Fragmentation Study of Primary Al3Zr Intermetallics Formed in Al Alloys

被引：8

作者：

Priyadarshi, Abhinav ^{[1
]}

Subroto, Tungky ^{[2
]}

Conte, Marcello ^{[3
]}

Pericelous, Koulis ^{[4
]}

Eskin, Dmitry ^{[2
,6
]}

Prentice, Paul ^{[5
]}

Tzanakis, Iakovos ^{[1
,7
]}

机构：

[1] Oxford Brookes Univ, Fac Technol Design & Environm, Oxford OX33 1HX, England

[2] Brunel Univ London, Brunel Ctr Adv Solidificat Technol BCAST, Uxbridge UB8 3PH, Middx, England

[3] Anton Paar TriTec SA, Rue Gare 4, CH-2034 Peseux, Switzerland

[4] Univ Greenwich, Dept Math, Computat Sci & Engn Grp CSEG, London SE10 9LS, England

[5] Univ Glasgow, Sch Engn, Cavitat Lab, Glasgow G12 8QQ, Lanark, Scotland

[6] Tomsk State Univ, Tomsk 634050, Russia

[7] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

LIGHT METALS 2020 | 2020年

基金：

英国工程与自然科学研究理事会;

关键词：

Ultrasonic melt treatment; Cavitation; Fragmentation; Intermetallic crystal; Nanoindentation; High-speed imaging; SOLIDIFICATION; RADIOGRAPHY; ULTRASOUND;

D O I：

10.1007/978-3-030-36408-3_23

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Mechanical properties of primary Al3Zr crystals and their in situ fragmentation behaviour under the influence of a single laser induced cavitation bubble have been investigated using nanoindentation and high-speed imaging techniques, respectively. Linear loading of 10 mN was applied to the intermetallics embedded in the Al matrix using a geometrically well-defined diamond nano-indenter to obtain the mechanical properties at room temperature conditions. Primary Al3Zr crystals were also extracted by dissolving the aluminium matrix of an Al-3wt% Zr alloy. The extracted primary crystals were also subjected to cavitation action in deionized water to image the fracture sequence in real time. Fragmentation of the studied intermetallics was recorded at 500,000 frames per second. Results showed that the intermetallic crystals fail by brittle fracture mode most likely due to the repeatedly-generated shock waves from the collapsing bubbles. The results were interpreted in terms of fracture mechanics using the nanoindentation results.

引用

页码：168 / 173

页数：6

共 24 条

[1] Criteria of Grain Refinement Induced by Ultrasonic Melt Treatment of Aluminum Alloys Containing Zr and Ti [J].

Atamanenko, T. V. ;

Eskin, D. G. ;

Zhang, L. ;

Katgerman, L. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (08) :2056-2066

[2] The microscopic visualisation of the sonocrystallisation of ice using a novel ultrasonic cold stage [J].

Chow, R ;

Blindt, R ;

Kamp, A ;

Grocutt, P ;

Chivers, R .

ULTRASONICS SONOCHEMISTRY, 2004, 11 (3-4) :245-250

[3] Novel high temperature vacuum nanoindentation system with active surface referencing and non-contact heating for measurements up to 800 °C [J].

Conte, Marcello ;

Mohanty, Gaurav ;

Schwiedrzik, Jakob J. ;

Wheeler, Jeffrey M. ;

Bellaton, Bertrand ;

Michler, Johann ;

Randall, Nicholas X. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2019, 90 (04)

[4]

deFontaine D, 1994, SOLID STATE PHYS, V47, P33

[5] Fundamental studies of ultrasonic melt processing [J].

Eskin, D. G. ;

Tzanakis, I. ;

Wang, F. ;

Lebon, G. S. B. ;

Subroto, T. ;

Pericleous, K. ;

Mi, J. .

ULTRASONICS SONOCHEMISTRY, 2019, 52 :455-467

[6] Some control mechanisms of spatial solidification in light alloys [J].

Eskin, GI ;

Eskin, DG .

ZEITSCHRIFT FUR METALLKUNDE, 2004, 95 (08) :682-690

[7] Production of natural and synthesized aluminum-based composite materials with the aid of ultrasonic (cavitation) treatment of the melt [J].

Eskin, GI ;

Eskin, DG .

ULTRASONICS SONOCHEMISTRY, 2003, 10 (4-5) :297-301

[8] Broad prospects for commercial application of the ultrasonic (cavitation) melt treatment of light alloys [J].

Eskin, GI .

ULTRASONICS SONOCHEMISTRY, 2001, 8 (03) :319-325

[9]

Janssen M, 2004, Fracture Mechanics: Fundamentals and Applications

[10] Deconvolution of acoustically detected bubble-collapse shock waves [J].

Johansen, Kristoffer ;

Song, Jae Hee ;

Johnston, Keith ;

Prentice, Paul .

ULTRASONICS, 2017, 73 :144-153

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