On the Nature of Anomalously High Plasticity of High-Strength Titanium Nickelide Alloys with Shape-Memory Effects: II. Mechanisms of Plastic Deformation upon Isothermal Loading

E. F. Dudarev; R. Z. Valiev; Yu. R. Kolobov

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On the Nature of Anomalously High Plasticity of High-Strength Titanium Nickelide Alloys with Shape-Memory Effects: II. Mechanisms of Plastic Deformation upon Isothermal Loading

机译：具有形状记忆效应的高强度钛镍钛合金异常高塑性的性质：II。等温载荷下塑性变形的机理

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Mechanisms of plastic deformation have been studied in detail in the process of isothermal loading at room temperature in a high-purity shape-memory alloy of composition Ti_(49.4)Ni_(50.6). The alloy was studied in two initial states: usual coarse-grained (with an average grain size of 20-30 mu m) and submicrocrystalline (with an average grain size of 0.2-0.3 mu m). It has been shown that during tensile tests there occurs a mechanically induced martensitic transformation in the alloy at stresses corresponding to stages I, II, and III in the tensile curve and then elastic and plastic deformation of 519' martensite is observed at stages IV, V, and VI, respectively. Optical metallography in situ and electron microscopy have been used to study microstructural features and mechanisms of plastic deformation of the alloy up to its failure.

机译：在室温下等温加载Ti_（49.4）Ni_（50.6）组成的高纯度形状记忆合金中，详细研究了塑性变形的机理。研究了两种初始状态的合金：普通的粗晶粒（平均晶粒度为20-30微米）和亚微晶（平均晶粒度为0.2-0.3微米）。结果表明，在拉伸试验过程中，合金在对应于拉伸曲线中第一，第二和第三阶段的应力下发生了机械诱导的马氏体转变，然后在第四，第五阶段观察到了519'马氏体的弹性和塑性变形。和VI。光学金相和电子显微镜已用于研究合金的微观结构特征和塑性变形直至破坏的机理。

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《The Physics of Metals and Metallography》 |2009年第3期|共14页
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E. F. Dudarev; R. Z. Valiev; Yu. R. Kolobov;
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中图分类金属学与热处理;
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1. On the Nature of Anomalously High Plasticity of High-Strength Titanium Nickelide Alloys with Shape-Memory Effects: II. Mechanisms of Plastic Deformation upon Isothermal Loading [J] . E. F. Dudarev, R. Z. Valiev, Yu. R. Kolobov The Physics of Metals and Metallography . 2009,第3期

机译：具有形状记忆效应的高强度钛镍钛合金异常高塑性的性质：II。等温载荷下塑性变形的机理
2. On the Nature of Anomalously High Plasticity of High-Strength Titanium Nickelide Alloys with Shape-Memory Effects: I. Initial Structure and Mechanical Properties [J] . V. G. Pushin, A. I. Lotkov, Yu. R. Kolobov The Physics of Metals and Metallography . 2008,第5期

机译：具有形状记忆效应的高强度钛镍钛合金异常高塑性的性质：I.初始结构和力学性能
3. Development of Methods of Severe Plastic Deformation for the Production of High-Strength Alloys Based on Titanium Nickelide with a Shape-Memory Effect [J] . V. G. Pushin, V. V. Stolyarov, R. Z. Valiev The Physics of Metals and Metallography . 2002,第Suppla1期

机译：具有形状记忆效应的镍钛合金生产高强度合金的剧烈塑性变形方法的发展
4. Structural-Scale Levels of Development of Inelastic Martensitic Deformation during Isothermal Loading of Submicrocrystalline Titanium Nickelide in Premartensitic Condition [C] . G. P. Bakach, E. F. Dudarev, T. Yu. Maletkina, Internation Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures . 2015

机译：在最裂化条件下亚晶钛镍含量的等温载量期间无弹性马氏体变形的结构规模水平
5. Fabrication, microstructure, properties and deformation mechanisms of a nanocrystalline aluminum-iron-chromium-titanium alloy by mechanical alloying. [D] . Luo, Hong. 2005

机译：机械合金化纳米晶铝铁铬钛合金的制备，微观结构，性能和变形机理。
6. Influence of Hot Plastic Deformation in γ and (γ + α) Area on the Structure and Mechanical Properties of High-Strength Low-Alloy (HSLA) Steel [O] . Jan Sas, Tibor Kvačkaj, Ondrej Milkovič, 2016

机译：γ和（γ+α）区域的热塑性变形对高强度低合金（HSLA）钢的组织和力学性能的影响
7. Effect of isothermal "loading-unloading" cycles at bending deformation on inelastic properties of titanium nickelide-based alloy in B2 phase state [O] . V.N. Timkin, V.N. Grishkov, A.I. Lotkov, 2020

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8. Fundamental Mechanisms of Deformation and Fracture in High-Strength Bulk Metallic Glass Alloys and Their Composites [R] . Dauskardt, R. H. 2001

机译：高强度块状金属玻璃合金及其复合材料变形与断裂的基本机制

On the Nature of Anomalously High Plasticity of High-Strength Titanium Nickelide Alloys with Shape-Memory Effects: II. Mechanisms of Plastic Deformation upon Isothermal Loading

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