研究了Ni含量(1.5wt%-7.0wt%)与预应变量对Fe-Mn-Si-Cr-Ni合金的影响.对不同Ni含量下合金的力学性能、形状记忆恢复率与不同预应变量下合金的形状记忆恢复率进行了分析,并通过TEM观察其中两种合金的显微结构.结果表明,Fe-Mn-Si-Cr-Ni合金中,△σ(即σb-σ0.2)越大,合金的最大形状记忆恢复率就越大;含Ni量为3.15wt%的合金在预应力作用下,易形成高密度且具有层错亚结构、位向单一的ε马氏体,从而具有最好的形状记忆效应.
参考文献
| [1] | Tatar C;Yakuphanoglu F .The effect of pressure on transformation temperatures and some physical parameters of Fe-32Mn-6Si-3Cr shape memory alloy[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2005(1/2):129-133. |
| [2] | Zaiyou Wang;Jinhua Zhu .Cavitation erosion of Fe-Mn-Si-Cr shape memory alloys[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2004(1/2):66-72. |
| [3] | N. STANFORD;D. DUNNE .Martensitic Surface Relief in an Fe-Mn-Si-Based Alloy Strained by Bending[J].Scripta materialia,2005(6):739-744. |
| [4] | 陈艳锋 .Fe-Mn-Si基形状记忆合金成分对组织和性能的影响[D].西北工业大学,2005. |
| [5] | Y. H. Wen;M. Yang;N. Li .Effect of carbon content on mechanism of thermal-mechanical cycling in Fe-Mn-Si-Cr-Ni-C alloys[J].Materials Letters,2004(6):899-902. |
| [6] | Otubo J;Mei P R;Koshimizu S et al.Relationship between thermomechanical treatment,microstructure and α′ martensite in stainless Fe-based shape memory alloys[J].Materials Science and Engineering A,1999,273-275:533-537. |
| [7] | Z.Z. Dong;S. Kajiwara;T. Kikuchi .Effect of pre-deformation at-room temperature on shape memory properties of stainless type Fe-15Mn-5Si-9Cr-5Ni-(0.5-1.5)NbC alloys[J].Acta materialia,2005(15):4009-4018. |
| [8] | 夏瑞东;刘冠威 等.不同预应变量Fe-30Mn-6Si-5Cr形状记忆合金热机械训练效果研究[J].功能材料,1997,28(06):576-579. |
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