Revealing the Atomistic Mechanisms of Strain Glass Transition in Ferroelastics

2020 ◽  
Author(s):  
Chuanxin Liang ◽  
Dong Wang ◽  
Zhao Wang ◽  
Xiangdong Ding ◽  
Yunzhi Wang
Keyword(s):  
Glass Transition ◽  
Strain Glass Transition

Reentrant strain glass transition in Ti-Ni-Cu shape memory alloy

2022 ◽  
pp. 117618
Author(s):  
Wenjia Wang ◽  
Yuanchao Ji ◽  
Minxia Fang ◽  
Dong Wang ◽  
Shuai Ren ◽  
...  
Keyword(s):  
Glass Transition ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Strain Glass Transition

Characteristics of the strain glass transition in as-quenched and 250 °C early-aged Ti48.7Ni51.3 shape memory alloy

2016 ◽  
Vol 120 ◽  
pp. 159-167 ◽  
Author(s):  
Chen Chien ◽  
Cheng-Si Tsao ◽  
Shyi-Kaan Wu ◽  
Chun-Yu Chang ◽  
Pei-Chi Chang ◽  
...  
Keyword(s):  
Glass Transition ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Strain Glass Transition

Origin of the strain glass transition in Ti50(Ni50− D ) alloys

2016 ◽  
Vol 678 ◽  
pp. 325-328 ◽  
Author(s):  
Xu Wang ◽  
Jia-Xiang Shang ◽  
Fu-He Wang ◽  
Yue Chen
Keyword(s):  
Glass Transition ◽  
Strain Glass Transition

Hydrogen Mobility in the Non-Martensitically Transforming Shape Memory Alloy Ni52Ti48

2012 ◽  
Vol 326-328 ◽  
pp. 731-738
Author(s):  
Giovanni Mazzolai
Keyword(s):  
Diffusion Coefficient ◽  
Glass Transition ◽  
High Temperature ◽  
Lattice Structure ◽  
Mechanical Spectroscopy ◽  
Accurate Analysis ◽  
Niti Sma ◽  
High Temperature Data ◽  
Strain Glass Transition ◽  
B2 Structure

Hydrogen mobility has been studied at high temperature by absorption experiments in the Ni52Ti48 alloy, which does not transform martensitically but rather behaves like a so-called strain glass. The results obtained have been compared with those deduced from an anelastic relaxation occurring in this alloy below the strain-glass transition temperatures. An accurate analysis of the anelastic data has confirmed the conclusion that the relaxation is related to H rather than to the glass transition. Its relaxation time obeyed a Voogel-Fulcher type of temperature dependence. Combining absorption and anelastic results, the H diffusion coefficient in the B2 lattice structure of this alloy could be studied from 1200 K down to 170 K. The agreement between the absorption and mechanical spectroscopy data was satisfactory. The activation energy (0.33 eV) deduced from a Vogel-Fulcher representation of the H diffusion coefficient D was sensibly lower than earlier determinations (0.44-0.50 eV) from Arrhenius plots. The high temperature data of Ni52Ti48 alloy, compared with the ones available in the literature for other NiTi SMA in their B2 structure, show a substantial independence of D on the alloy composition.

scholarly journals Shuffle-nanodomain regulated strain glass transition in Ti-24Nb-4Zr-8Sn alloy

2020 ◽  
Vol 186 ◽  
pp. 415-424 ◽  
Author(s):  
Qianglong Liang ◽  
Dong Wang ◽  
Yufeng Zheng ◽  
Shuangshuang Zhao ◽  
Yipeng Gao ◽  
...  
Keyword(s):  
Glass Transition ◽  
Strain Glass Transition

Ferroelastic Nanostructures and Nanoscale Transitions: Ferroics with Point Defects

MRS Bulletin ◽  
2009 ◽  
Vol 34 (11) ◽  
pp. 838-846 ◽  
Author(s):  
Xiaobing Ren ◽  
Yu Wang ◽  
Kazuhiro Otsuka ◽  
Pol Lloveras ◽  
Teresa Castán ◽  
...  
Keyword(s):  
Glass Transition ◽  
Martensitic Transformation ◽  
Point Defects ◽  
Functional Materials ◽  
Modeling Simulation ◽  
Concise Review ◽  
Transition Strain ◽  
Tweed Structure ◽  
Strain Glass Transition ◽  
Ferroelastic Domains

AbstractFor decades, a kind of nanoscale microstructure, known as the premartensitic “tweed structure” or “mottled structure,” has been widely observed in various martensitic or ferroelastic materials prior to their martensitic transformation, but its origin has remained obscure. Recently, a similar nanoscale microstructure also has been reported in highly doped ferroelastic systems, but it does not change into martensite; instead, it undergoes a nanoscale freezing transition—“strain glass” transition—and is frozen into a nanodomained strain glass state. This article provides a concise review of the recent experimental and modeling/simulation effort that is leading to a unified understanding of both premartensitic tweed and strain glass. The discussion shows that the premartensitic tweed or strain glass is characterized by nano-sized quasistatic ferroelastic domains caused by the existence of random point defects or dopants in ferroelastic systems. The mechanisms behind the point-defect-induced nanostructures and glass phenomena will be reviewed, and their significance in ferroic functional materials will be discussed.

scholarly journals Strain glass transition in a multifunctional β-type Ti alloy

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Yu Wang ◽  
Jinghui Gao ◽  
Haijun Wu ◽  
Sen Yang ◽  
Xiangdong Ding ◽  
...  
Keyword(s):  
Glass Transition ◽  
Ti Alloy ◽  
Strain Glass Transition

Direct Evidence for Local Symmetry Breaking during a Strain Glass Transition

2014 ◽  
Vol 112 (2) ◽  
Author(s):  
Yumei Zhou ◽  
Dezhen Xue ◽  
Ya Tian ◽  
Xiangdong Ding ◽  
Shengwu Guo ◽  
...  
Keyword(s):  
Glass Transition ◽  
Symmetry Breaking ◽  
Direct Evidence ◽  
Local Symmetry ◽  
Strain Glass Transition

Unique properties associated with normal martensitic transition and strain glass transition – A simulation study

2013 ◽  
Vol 577 ◽  
pp. S102-S106 ◽  
Author(s):  
Dong Wang ◽  
Yan Ni ◽  
Jinghui Gao ◽  
Zhen Zhang ◽  
Xiaobing Ren ◽  
...  
Keyword(s):  
Glass Transition ◽  
Simulation Study ◽  
Martensitic Transition ◽  
Strain Glass Transition
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