Effects of Microalloying on Microstructure and Properties of Multiphase Reinforced CuZr Based Amorphous Composites

Zhang Zhen; Huang Runhua; Lü Shulin; Wang Jincheng; Wu Shusen; Guo Wei

doi:10.15980/j.tzzz.2024.03.011

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Effects of Microalloying on Microstructure and Properties of Multiphase Reinforced CuZr Based Amorphous Composites
Vol. 44, Issue 3, Pages: 349-353(2024)
Published： 20 March 2024 ，
DOI： 10.15980/j.tzzz.2024.03.011

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张震，黄润华，吕书林，等. 微合金化对多相增强铜锆基非晶复合材料组织性能影响［J］. 特种铸造及有色合金，2024，44（3）：349-353.

ZHANG Z，HUANG R H，LÜ S L，et al. Effects of microalloying on microstructure and properties of multiphase reinforced CuZr based amorphous composites［J］. Special Casting & Nonferrous Alloys，2024，44（3）：349-353.
张震，黄润华，吕书林，等. 微合金化对多相增强铜锆基非晶复合材料组织性能影响［J］. 特种铸造及有色合金，2024，44（3）：349-353. DOI： 10.15980/j.tzzz.2024.03.011.

ZHANG Z，HUANG R H，LÜ S L，et al. Effects of microalloying on microstructure and properties of multiphase reinforced CuZr based amorphous composites［J］. Special Casting & Nonferrous Alloys，2024，44（3）：349-353. DOI： 10.15980/j.tzzz.2024.03.011.

摘要

以具有多相复合结构的［（Zr

0.5

）

0.93

0.07

］

（摩尔比）非晶复合材料为基础，通过不同元素的微合金化（Ti，Co，Sn），探讨了合金化元素对多相复合材料微观组织及力学性能的影响。结果表明，添加微量Sn元素能够同时提高基体的非晶形成能力与

2-CuZr相的热稳定性，避免凝固过程中

2-CuZr相发生马氏体相变或基体中其他结晶相的析出，获得了增强相均匀分散的多相增强铜锆基非晶复合材料。开发的［（Zr

0.5

）

0.925

0.07

0.005

］

非晶复合材料的抗压强度与塑性应变相比［（Zr

0.5

）

0.93

0.07

］

分别提升了9.6%和131.3%。

Abstract

Based on the ［（Zr

0.5

）

0.93

0.07

］

（atomic ratio） amorphous composites with multiphase compound structure， the effects of alloying elements on microstructure and mechanical properties were investigated through microalloying of different elements （Ti， Co， Sn）. The results indicate that Sn addition can simultaneously improve the amorphous forming ability of the matrix and thermal stability of

2-CuZr phase，which avoids the occurrence of martensitic transformation of

2-CuZr phase or precipitation of other crystalline phases in the matrix during the solidification process， leading to the multiphase reinforced Cu-Zr based amorphous composites with uniformly dispersed reinforcing phases. The compressive strength and plastic deformation of developed ［（Zr

0.5

）

0.925

0.07

0.005

］

amorphous composites are increased by 9.6% and 131.3%， respectively， compared with those of ［（Zr

0.5

）

0.93

0.07

］

关键词

非晶复合材料微合金化多相复合组织强韧性

Keywords

Amorphous CompositesMicroalloyingMultiphase Compound StructureStrength and Toughness

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