The annihilation of antiphase boundary tubes and their effect on strengthening in Ni3Al

被引：4

作者：

Osmundsen, Rachel ^{[1
,2
]}

Baker, Ian ^{[1
]}

机构：

[1] Dartmouth Coll, Thayer Sch Engn, 15 Thayer Dr, Hanover, NH 03755 USA

[2] Amer NanoPort, Thermo Fisher Sci, 5350 NE Dawson Creek Dr, Hillsboro, OR 97124 USA

来源：

ACTA MATERIALIA | 2022年 / 237卷

关键词：

Antiphase boundary tubes; Intermetallics; Work-hardening modeling; Nickel-aluminide; In situ transmission electron microscopy; TO-FERROMAGNETIC TRANSITION; INTRINSIC STACKING-FAULTS; STRAIN-RATE DEPENDENCE; KEAR-WILSDORF LOCKS; FE-35 AT.PERCENT AL; TEMPERATURE-DEPENDENCE; FLOW-STRESS; SINGLE-CRYSTALS; CROSS-SLIP; SUPERLATTICE DISLOCATIONS;

D O I：

10.1016/j.actamat.2022.118185

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature at which antiphase boundary (APB) tubes anneal out of lightly-strained Ni-rich Ni3Al thin foils has been measured via in-situ heating in a transmission electron microscope to be similar to 530 degrees C. Given this new information, the wealth of literature on the mechanical properties of Ni Al-3 across the entire temperature regime of the yield stress anomaly, similar to 25-800 degrees C, is re-evaluated to consider the impact of APB tubes. Contrary to previous theoretical predications, APB tubes do not appear to affect the strength of Ni3Al. (C) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页数：11

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