Bulk ultrafine grained/nanocrystalline metals via slow cooling

被引：65

作者：

Cao, Chezheng ^{[1
,2
]}

Yao, Gongcheng ^{[1
,2
]}

Jiang, Lin ^{[3
,4
]}

Sokoluk, Maximilian ^{[2
]}

Wang, Xin ^{[3
]}

Ciston, Jim ^{[5
]}

Javadi, Abdolreza ^{[2
]}

Guan, Zeyi ^{[2
]}

De Rosa, Igor ^{[1
]}

Xie, Weiguo ^{[6
]}

Lavernia, Enrique J. ^{[3
]}

Schoenung, Julie M. ^{[3
]}

Li, Xiaochun ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

[3] Univ Calif Irvine, Dept Mat Sci & Engn, Irvine, CA 96297 USA

[4] Thermo Fisher Sci, Mat & Struct Anal, Hillsboro, OR 97124 USA

[5] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Mol Foundry, Berkeley, CA 94720 USA

[6] Univ Exeter, Camborne Sch Mines, Penryn Campus, Penryn TR10 9FE, Cornwall, England

来源：

SCIENCE ADVANCES | 2019年 / 5卷 / 08期

关键词：

GRAIN-REFINEMENT; BI ALLOY; NUCLEATION; STRENGTH; ALUMINUM; MAGNESIUM; MICROSTRUCTURE; DEFORMATION; DISPERSION; BEHAVIOR;

D O I：

10.1126/sciadv.aaw2398

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Cooling, nucleation, and phase growth are ubiquitous processes in nature. Effective control of nucleation and phase growth is of significance to yield refined microstructures with enhanced performance for materials. Recent studies reveal that ultrafine grained (UFG)/nanocrystalline metals exhibit extraordinary properties. However, conventional microstructure refinement methods, such as fast cooling and inoculation, have reached certain fundamental limits. It has been considered impossible to fabricate bulk UFG/nanocrystalline metals via slow cooling. Here, we report a new discovery that nanoparticles can refine metal grains to ultrafine/nanoscale by instilling a continuous nucleation and growth control mechanism during slow cooling. The bulk UFG/nanocrystalline metal with nanoparticles also reveals an unprecedented thermal stability. This method overcomes the grain refinement limits and may be extended to any other processes that involve cooling, nucleation, and phase growth for widespread applications.

引用

页数：10

共 50 条

[21] Grain boundary sliding, triple junction disclinations and strain hardening in ultrafine-grained and nanocrystalline metals
Ovid'ko, I. A.
Sheinerman, A. G.
INTERNATIONAL JOURNAL OF PLASTICITY, 2017, 96 : 227 - 241
[22] Achieving superplasticity in ultrafine-grained metals
Langdon, Terence G.
MECHANICS OF MATERIALS, 2013, 67 : 2 - 8
[23] Developing Superplasticity in Ultrafine-Grained Metals
Kawasaki, M.
Langdon, T. G.
ACTA PHYSICA POLONICA A, 2015, 128 (04) : 470 - 478
[24] Physical mesomechanics of ultrafine-grained metals
Panin, VE
INVESTIGATIONS AND APPLICATIONS OF SEVERE PLASTIC DEFORMATION, 2000, 80 : 203 - 209
[25] Systemization of Severe Plastic Deformation processes for the production of ultrafine-grained and nanocrystalline structures within bulk workpieces
Altukhov, A. V.
Tarasov, A. F.
Perig, A. V.
LETTERS ON MATERIALS-PIS MA O MATERIALAKH, 2012, 2 (01): : 54 - 59
[26] Mechanical properties of bulk ultrafine-grained copper
Das, D
Samanta, A
Chattopadhyay, PP
SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY, 2006, 36 (02) : 221 - 225
[27] Bulk ultrafine grained microstructures with high thermal stability via intragranular precipitation of coherent particles
Liang, Shenglong
Liu, Xiaochun
Jiang, Suihe
Zhu, Huihui
Li, Wei
Liu, Leqing
Liu, Xiongjun
Wu, Yuan
Zhang, Xiaobin
Wang, Hui
Lu, Zhaoping
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2024, 181 : 220 - 230
[28] The importance of fracture toughness in ultrafine and nanocrystalline bulk materials
Pippan, R.
Hohenwarter, A.
MATERIALS RESEARCH LETTERS, 2016, 4 (03): : 127 - 136
[29] Ductility of bulk nanocrystalline and ultrafine grain iron and steel
Benito J.A.
Tejedor R.
Rodríguez-Baracaldo R.
Cabrera J.M.
Prado J.M.
Materials Science Forum, 2010, 633-634 : 197 - 203
[30] GENERATION OF NANOSCALE DEFORMATION TWINS AT FREE SURFACES IN NANOCRYSTALLINE AND ULTRAFINE-GRAINED BULK MATERIALS, THIN FILMS AND MICROPILLARS
Ovid'ko, I. A.
Skiba, N. V.
REVIEWS ON ADVANCED MATERIALS SCIENCE, 2015, 43 (1-2) : 22 - 30

← 1 2 3 4 5 →