Effect of Electropulsing Treatment on Microstructure and Shape Memory Effect of a FeMnSiCrNiNbC Alloy

Yang Shi-zhou; Li Ning; Liu Wen-bo; Wen Yu-hua

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Effect of Electropulsing Treatment on Microstructure and Shape Memory Effect of a FeMnSiCrNiNbC Alloy

更新时间：2023-11-28

- Effect of Electropulsing Treatment on Microstructure and Shape Memory Effect of a FeMnSiCrNiNbC Alloy
- Advanced Engineering Sciences Vol. 40, Issue 6, Pages: 105-109(2008)
- 作者机构：
  
  1. 四川大学
  2. 四川大学制造学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008，
  
  Published Online：19 June 2008，
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杨世洲,李宁,刘文博,文玉华.电脉冲处理对FeMnSiCrNiNbC合金组织及形状记忆效应的影响[J].工程科学与技术,2008,40(6):105-109.

Yang Shi-zhou, Li Ning, Liu Wen-bo, et al. Effect of Electropulsing Treatment on Microstructure and Shape Memory Effect of a FeMnSiCrNiNbC Alloy. [J]. Advanced Engineering Sciences 40(6):105-109(2008)
杨世洲,李宁,刘文博,文玉华.电脉冲处理对FeMnSiCrNiNbC合金组织及形状记忆效应的影响[J].工程科学与技术,2008,40(6):105-109. DOI：

Yang Shi-zhou, Li Ning, Liu Wen-bo, et al. Effect of Electropulsing Treatment on Microstructure and Shape Memory Effect of a FeMnSiCrNiNbC Alloy. [J]. Advanced Engineering Sciences 40(6):105-109(2008) DOI：

摘要

中文摘要: 为了进一步提高FeMnSiCrNiNbC合金的形状记忆性能以及提高其处理的效率，研究了不同电脉冲处理对合金显微组织及形状记忆效应的影响。研究结果表明，Fe17Mn5Si8Cr5Ni0.5NbC合金经10%预拉伸变形后，经300V、1Hz电脉冲处理11次的丝材，其形状回复率达到86.5%，比经10%预拉伸变形后800℃时效15min时获得的最大值提高了8.1%。经SEM与TEM分析发现，电脉冲处理可在极短的时间内加速诱导大量、细小的NbC颗粒在基体内析出，进而有效地改善了合金的形状记忆性能并提高了处理的效率。

Abstract

Abstract:In order to further improve shape memory effect(SME) and process efficiency of a FeMnSiCrNiNbC alloy

the effects of different electropulsing treatment on microstructure and SME of the alloy were investigated in the paper. The results showed that the shape recovery ratio of specimen subjected to 10% tensile pre-deformation following electropulsing treatment at 300V and 1Hz for 11 times reached maximum 86.5%

8.1% greater than that subjected to ageing at 800℃ for 15 minutes after 10% tensile pre-deformation. In addition

it was found by SEM and TEM analysis that NbC carbides induced by electropulsing treatment precipitated more quickly

and the amount of NbC was much more and the size of NbC particle was smaller. Therefore

its SME can be further improved and the process efficiency is higher.

关键词

电脉冲处理形状记忆效应加速诱导 NbC沉淀

Keywords

references

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