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Author:

付军健 (付军健.) | 杜文博 (杜文博.) (Scholars:杜文博) | 杜宪 (杜宪.) | 刘轲 (刘轲.) | 李淑波 (李淑波.) | 付金龙 (付金龙.) | 王朝辉 (王朝辉.) (Scholars:王朝辉)

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CQVIP CSCD

Abstract:

镁合金作为新型可降解医用金属材料,在血管支架领域具有广阔的应用前景。由于镁合金晶体结构为密排六方结构,塑性变形能力差,导致镁合金微细管制备困难。本研究针对作者开发的新型可降解Mg-4Zn-0.2Mn-0.2Ca镁合金,采用热挤压-拉拔复合工艺成功制备出外径3.1~3.6 mm、壁厚0.25~0.4 mm的微细管。针对外径3.6 mm,壁厚0.4 mm微细管组织演变及力学性能开展的研究结果表明:微细管材的塑性变形经过了滑移、孪生及再结晶等过程,并产生了显著的加工硬化现象;管材的抗拉强度为427.3 MPa,屈服强度为383.4 MPa,伸长率为5.2%;经300℃,30 min的退火处理,管材组...

Keyword:

组织演变 Mg-Zn-Mn-Ca镁合金 力学性能 挤压 拉拔

Author Community:

  • [ 1 ] 北京工业大学

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Source :

稀有金属材料与工程

Year: 2020

Issue: 10

Volume: 49

Page: 3576-3581

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 7

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