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Enhanced mechanical properties and oxidation resistance in metallic yttrium through composition-controlled Al alloying

delete2026-07-28
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PRE
AI
S
Siyuan Yang
Q
Q.D. Wang
W
Weiwei Zhang
J
Junhao Xiao
Y
Yu Xing
G
Guoqing Yan
X
Xue Fan
L
Long Hou
X
Xi Li *
DOI:10.1016/j.matchar.2026.116853delete
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Abstract

Abstract

En 中文
• Al-induced constitutional supercooling refines Y grains from ∼1600 to ∼90 μm. • Y-Y-1Al increases compressive strength and fracture strain by 94% and 123%. • Al additions up to 3 at.% progressively improve oxidation resistance. • -Y2Al enrichment and YAlO3 formation trigger scale cracking in Y-5Al at 900 °C. • A 1-3 at.% Al window balances mechanical and oxidation performance.
Keywords:
Yttrium-based alloy
Al alloying
Grain refinement
Mechanical property
Oxidation resistance

Journal

Materials Characterization cover
Materials Characterization
IF:
5.5
Papers:
1.1W
Citations:
3.4W

Organization

S
shanghai jiao tong university
Scholars:
15.1W
Papers: 11.5W
Citations: 159
S
Shanghai Dianji University
Scholars:
1.4K
Papers: 908
Citations: 539
S
shanghai university
Scholars:
3.8W
Papers: 2.7W
Citations: 52
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