Thin film combinatorial sputtering of TaTiHfZr refractory compositionally complex alloys for rapid materials discovery

被引：2

作者：

Emery, Reece ^{[1
]}

Puplampu, Stephen B. ^{[2
]}

Wood, Andrew ^{[2
]}

Penumadu, Dayakar ^{[2
]}

Lass, Eric A. ^{[1
]}

Lasseter, John ^{[1
,3
]}

Unocic, Kinga A. ^{[3
]}

Chen, Siwei ^{[4
]}

Zhao, Yajie ^{[1
]}

Zinkle, Steven J. ^{[1
,4
,5
]}

Liang, Tao ^{[1
]}

Xu, Haixuan ^{[1
]}

Gilbert, Dustin A. ^{[1
]}

Buchanan, C. Charlotte ^{[1
]}

Liaw, Peter K. ^{[1
]}

Rack, Philip D. ^{[1
]}

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA

[3] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA

[4] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA

[5] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

来源：

MATERIALS & DESIGN | 2025年 / 250卷

基金：

美国国家科学基金会;

关键词：

Combinatorial sputtering; Thin films; Nanoindentation; Rapid materials discovery; High entropy alloys; Multi-principal element alloys; Transformation induced plasticity; HIGH ENTROPY ALLOYS; DISLOCATION NUCLEATION; ELASTIC-MODULUS; INDENTATION; HARDNESS; NANOINDENTATION; EXPLORATION; STABILITY; BCC;

D O I：

10.1016/j.matdes.2025.113643

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Many applications from advanced nuclear reactors to aerospace and automotive industries require materials to operate in extreme environments. In search of new materials that can operate in these extremes, the present work explores this space whereby: (1) guided by atomistic and thermodynamic calculations we utilize thin film combinatorial synthesis to rapidly explore mechanical and thermal properties in a broad range of refractory compositionally complex alloys, and (2) observe transformation induced plasticity via oscillations in the thin film nanoindentation load depth curves that are attributed to, (3) a stress-induced HCP-to-BCC phase transformation in the resulting nanogranular microstructure, which to our knowledge has not been observed before in this alloy system; and finally (4) scale to bulk materials to compare the thin film results.

引用

页数：12

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