Rotary Forging to Improve the Strength Properties of the Zr-2.5% Nb Alloy

被引：6

作者：

Rogachev, S. O. ^{[1
,2
]}

Andreev, V. A. ^{[2
,3
]}

Gorshenkov, M., V ^{[1
]}

Ten, D., V ^{[1
]}

Kuznetsova, A. S. ^{[1
]}

Shcherbakov, A. B. ^{[4
]}

机构：

[1] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia

[2] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119334, Russia

[3] LLC Ind Ctr MATEK SMA, Moscow 117449, Russia

[4] 3D Komponent, Volgodonsk 347360, Rostov Oblast, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2022年 / 123卷 / 09期

关键词：

dental implants; zirconium alloy; severe plastic deformation; rotary swaging; microstructure; mechanical properties; ZIRCONIUM; TITANIUM;

D O I：

10.1134/S0031918X22090113

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

One of the techniques of severe plastic deformation, which has been used to improve the strength of the biocompatible zirconium alloy Zr-2.5% Nb (E125), is rotary forging. Swaging of an initially recrystallized alloy rod from a diameter of 12 mm to a diameter of 6.5 mm resulted in the formation of a grain-subgrain oriented microstructure characterized by a high density of dislocations and a predominance of low-angle misorientations of structural elements. These structural changes led to an increase in the yield strength and in the ultimate tensile strength of the alloy by a factor of 2.1 and 1.6, respectively. The alloy has a good plasticity margin after rotary swaging; the relative elongation is 14%. The complex of mechanical properties achieved for the Zr-2.5% Nb alloy meets the requirements for dental implant materials.

引用

页码：939 / 944

页数：6

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