Strengthening of a Biodegradable Mg-Zn-Ca Alloy ZX50 After Processing by HPT and Heat Treatment

被引：2

作者：

Ojdanic, A. ^{[1
]}

Schafler, E. ^{[1
]}

Horky, J. ^{[2
]}

Orlov, D. ^{[3
,4
]}

Zehetbauer, M. ^{[1
]}

机构：

[1] Univ Vienna, Fac Phys, Phys Nanostruct Mat, A-1090 Vienna, Austria

[2] AIT Austrian Inst Technol, Ctr Hlth & Bioresources, Biomed Syst, A-2700 Wr Neustadt, Austria

[3] Lund Univ, LTH, POB 118, S-22100 Lund, Sweden

[4] Univ Nova Gorica, Mat Res Lab, Ajdovscina 5270, Slovenia

来源：

MAGNESIUM TECHNOLOGY 2018 | 2018年

关键词：

Mg-alloys; Intermetallic particles; Vacancy agglomerates; Corrosion; Biodegradability; Severe plastic deformation; SEVERE PLASTIC-DEFORMATION; ELECTRON-MICROSCOPY; MAGNESIUM;

D O I：

10.1007/978-3-319-72332-7_43

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study investigates a biodegradable Mg-5Zn-0.3Ca alloy (ZX50) during HPT-processing and long-term heat treatments, the latter with respect to the evolution of intermetallic precipitates and vacancy clusters. Both the precipitates as well as the vacancy clusters achieve strength increases as the Zn atoms may act as potential trapping sites not only for HPT-induced dislocations but also vacancies. So far, overall increases of strength of up to 200% have been reached while keeping the Young's modulus unchanged, thus representing an attractive improvement of mechanical properties for the actual alloy.

引用

页码：277 / 282

页数：6

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