Effect of HPT and accumulative HPT on structure formation and microhardness of the novel Ti18Zr15Nb alloy

被引：18
作者：
Gunderov, D. [1 ,2 ]
Prokoshkin, S. [3 ]
Churakova, A. [1 ,2 ]
Sheremetyev, V [3 ]
Ramazanov, I [2 ]
机构：
[1] Ufa Fed Res Ctr RAS, Inst Mol & Crystal Phys, Ufa, Russia
[2] Ufa State Aviat Tech Univ, Ufa, Russia
[3] Natl Univ Sci & Technol MISiS, Moscow, Russia
来源：
MATERIALS LETTERS | 2021年 / 283卷
基金：
俄罗斯科学基金会;
关键词：
SHAPE-MEMORY ALLOYS; MECHANICAL-PROPERTIES; TI; PRESSURE; NB; MICROSTRUCTURE; DEFORMATION; TEMPERATURE; FEATURES; ZR;
D O I：
10.1016/j.matlet.2020.128819
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of HPT and accumulative HPT on the Ti18Zr15Nb biomedical alloy has been studied. According to the XRD and TEM data, the beta-phase is a main phase in the alloy both in the initial state and after processing by HPT and accumulative HPT. The beta-phase X-ray line width after HPT processing, and especially after ACC HPT processing has drastically increased as a result of an increase in defect concentration and grain refinement. According to TEM, the grains after HPT processing for n = 10 revolutions are refined in some regions down to 10-30 nm. As a result of HPT processing, the alloy's microhardness has noticeably increased, which indicates an increase in strength and yield stress together with the preservation of the fl-state. (C) 2020 Elsevier B.V. All rights reserved.
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页数：4
相关论文
共 23 条
[1]   Structure formation during thermomechanical processing of Ti-Nb-(Zr, Ta) alloys and the manifestation of the shape-memory effect [J].
Dubinskiy, S. M. ;
Prokoshkin, S. D. ;
Brailovski, V. ;
Inaekyan, K. E. ;
Korotitskiy, A. V. ;
Filonov, M. R. ;
Petrzhik, M. I. .
PHYSICS OF METALS AND METALLOGRAPHY, 2011, 112 (05) :503-516
[2]  
Gatina S., 2015, ADV ENG MAT
[3]   Ti based biomaterials, the ultimate choice for orthopaedic implants - A review [J].
Geetha, M. ;
Singh, A. K. ;
Asokamani, R. ;
Gogia, A. K. .
PROGRESS IN MATERIALS SCIENCE, 2009, 54 (03) :397-425
[4]   Mechanical properties and martensitic transformations in nanocrystalline Ti49.4Ni50.6 alloy produced by high-pressure torsion [J].
Gunderov, D. ;
Lukyanov, A. ;
Prokofiev, E. ;
Kilmametov, A. ;
Pushin, V. ;
Valiev, R. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 503 (1-2) :75-77
[5]   Accumulative HPT of Zr-based bulk metallic glasses [J].
Gunderov, D., V ;
Churakova, A. A. ;
Astanin, V. V. ;
Asfandiyarov, R. N. ;
Hahn, H. ;
Valiev, R. Z. .
MATERIALS LETTERS, 2020, 261
[6]   Observation of shear bands in the Vitreloy metallic glass subjected to HPT processing [J].
Gunderov, D., V ;
Churakova, A. A. ;
Boltynjuk, E., V ;
Ubyivovk, E., V ;
Astanin, V. V. ;
Asfandiyarov, R. N. ;
Valiev, R. Z. ;
Xioang, W. ;
Wang, J. T. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 800 :58-63
[7]   Evolution of microstructure, macrotexture and mechanical properties of commercially pure Ti during ECAP-conform processing and drawing [J].
Gunderov, D. V. ;
Polyakov, A. V. ;
Semenova, I. P. ;
Raab, G. I. ;
Churakova, A. A. ;
Gimaltdinova, E. I. ;
Sabirov, I. ;
Segurado, J. ;
Sitdikov, V. D. ;
Alexandrov, I. V. ;
Enikeev, N. A. ;
Valiev, R. Z. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 562 :128-136
[8]  
Janecek M., MATERIALS CHARACTERI, V98, P233
[9]   Crystal Structure, Transformation Strain, and Superelastic Property of Ti–Nb–Zr and Ti–Nb–Ta Alloys [J].
Kim H.Y. ;
Fu J. ;
Tobe H. ;
Kim J.I. ;
Miyazaki S. .
Shape Memory and Superelasticity, 2015, 1 (02) :107-116
[10]   Ternary Ti-Zr-Nb and quaternary Ti-Zr-Nb-Ta shape memory alloys for biomedical applications: Structural features and cyclic mechanical properties [J].
Konopatsky, A. S. ;
Dubinskiy, S. M. ;
Zhukova, Yu. S. ;
Sheremetyev, V. ;
Brailovski, V. ;
Prokoshkin, S. D. ;
Filonov, M. R. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 702 :301-311
123