Mechanical properties of Ti-(∼49 at%) Ni shape memory alloy: Part I. Effect of cold deformation

被引：8

作者：

Sinha, Arijit ^{[1
]}

Mondal, Bholanath ^{[2
]}

Chattopadhyay, Partha Protim ^{[3
]}

机构：

[1] Bengal Engn & Sci Univ, Sch Mat Sci & Engn, Howrah 711103, W Bengal, India

[2] Indian Assoc Cultivat Sci, Dept Cent Sci Serv, Kolkata 700032, W Bengal, India

[3] Bengal Engn & Sci Univ, Dept Met & Mat Engn, Howrah 711103, W Bengal, India

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 561卷

关键词：

Shape memory alloys; Martensite; Martensitic transformations; Bulk deformation; Shape memory; Mechanical characterization; INDUCED MARTENSITIC-TRANSFORMATION; EQUIATOMIC TINI ALLOY; BEHAVIOR; STABILIZATION; PHASE; MICROSTRUCTURE; PRECIPITATION; AMORPHIZATION; REORIENTATION; TEMPERATURES;

D O I：

10.1016/j.msea.2012.10.021

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present investigation aims to study the effect of cold deformation on the mechanical properties and shape recovery behavior of the Ti-rich Ti-Ni alloy. The micrographic investigations and XRD analyses have revealed that the microstructure of the homogenized and quenched samples comprises austenite (B2) and martensite (B19') phases. Significant enhancement of martensite volume fractions in the microstructure has been achieved after 30% cold deformation. The effect of deformation has also been manifested in terms of the sloping tensile curve in the region of shape memory strain. The shape recovery experiment has indicated improved shape recovery ratio in the case of the deformed samples owing to the delay in onset of the plastic straining during the shape deformation. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：338 / 343

页数：6

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