采用OM、TEM和XRD方法研究了不同退火温度的热机械处理对Fe-14Mn-5Si-8Cr-4Ni合金中α'马氏体逆转变及合金形状记忆效应的影响.结果表明:当在773～1173 K之间退火时,Fe-14Mn-5Si-8Cr-4Ni合金的形状同复率随退火温度的升高先增加后降低,在923 K达到最大值88%;当退火温度低于923 K时,变形引入的α'马氏体仍大量残留在奥氏体基体中;当退火温度高于1073 K时,α'马氏体消失;热机械处理引入的α'马氏体能有效阻止再次变形过程中不同方向和不同区域应力诱发ε马氏体的交叉碰撞,使应力诱发马氏体以区域化的方式形成,进而显著提高合金的形状记忆效应.
参考文献
| [1] | Alberto Baruj;Takehiko Kikuchi;Setsuo Kajiwara .Effect of Pre-Deformation of Austenite on Shape Memory Properties in Fe-Mn-Si-based Alloys Containing Nb and C[J].Materials transactions,2002(3):585-588. |
| [2] | Otsuka H;Yamada H;Tadakatsu M et al.Effects of alloying additions on Fe-Mn-Si shape memory alloys[J].ISIJ International,1990,30(08):674-679. |
| [3] | Z. Dong;T. Sawaguchi;T. Kikuchi;F. Yin;K. Ogawa;P. Sahu;S. Kajiwara .Internal friction study on fcc/hcp martensitic transformations in thermomechanically treated Fe-28Mn-6Si-5Cr-0.53Nb-0.06C (mass%) alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):404-408. |
| [4] | Kajiwara S .Characteristic features of shape memory effect and related transformation behaviour in Fe-based alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1999,273-275:67-88. |
| [5] | Rong L J;Ping D H;Li Y Y et al.Improvement of shape memory effect in Fe-Mn-Si alloy by Cr and Ni addition[J].Scripta Materialia,1995,32(12):1905-1909. |
| [6] | Yang J H;Chen H;Wayman C M .Development of Fe-based shape memory alloys associated martensitic transformations;Part I:shape memory behavior[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1992,23(05):1431-1437. |
| [7] | A. Baruj;T. Kikuchi;S. Kajiwara;N. Shinya .Improvement of shape memory properties of NbC containing Fe-Mn-Si based shape memory alloys by simple thermomechanical treatments[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):333-336. |
| [8] | 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. |
| [9] | 文玉华,张伟,李宁,谢文玲,王杉华.控制第二相方向性析出对铁基合金记忆效应的影响[J].金属学报,2006(11):1217-1220. |
| [10] | Y.H. Wen;W. Zhang;N. Li .Principle and realization of improving shape memory effect in Fe-Mn-Si-Cr-Ni alloy through aligned precipitations of second-phase particles[J].Acta materialia,2007(19):6526-6534. |
| [11] | Wen, YH;Xiong, LR;Li, N;Zhang, W .Remarkable improvement of shape memory effect in an Fe-Mn-Si-Cr-Ni-C alloy through controlling precipitation direction of Cr23C6[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2008(1/2):60-63. |
| [12] | Bergeon N.;Kajiwara S. .ATOMIC FORCE MICROSCOPE STUDY OF STRESS-INDUCED MARTENSITE FORMATION AND ITS REVERSE TRANSFORMATION IN A THERMOMECHANICALLY TREATED Fe-Mn-Si-Cr-Ni ALLOY[J].Acta materialia,2000(16):4053-4064. |
| [13] | Sato A;Chishima E;Soma K et al.Shape memory effect in γ←→ε transformation in Fe-30Mn-1Si alloy single crystals[J].Acta Metallurgica,1982,30(06):1177-1183. |
| [14] | Sato A;Chishima E;Yamaj Y et al.Orientation and composition dependencies of shape memory effect in Fe-Mn-Si alloys[J].Acta Metallurgica,1984,32(04):539-547. |
| [15] | Inagaki H .In situ TEM observations of the ε→γ reverse transformation in an Fe-14% Mn-6% Si-9% Cr-6% Ni shape memory alloy[J].Zeitschrift fur Metallkunde,1992,83(05):304-309. |
| [16] | Inagaki H .Shape memory effect of Fe-14% Mn-6% Si-9% Cr-6% Ni alloy polycrystals[J].Zeitschrift fur Metallkunde,1992,83(02):90-96. |
| [17] | Inagaki H .Transmission electron microscopy of the shape memory phenomena in Fe-14% Mn-6% Si-9% Cr-6% Ni alloy polycrystals[J].Zeitschrift fur Metallkunde,1992,83(02):97-104. |
| [18] | Ogawa K;Kajiwara S .HREM study of stress-induced transformation structures in an Fe-Mn-Si-Cr-Ni shape memory alloy[J].Materials Transactions,1993,34(12):1169-1176. |
| [19] | Takehiko Kikuchi;Setsuo Kajiwara;Yo Tomota .Microscopic Studies on Stress-induced Martensite Transformation and Its Reversion in an Fe-Mn-Si-Cr-Ni Shape Memory Alloy[J].Materials Transactions, JIM,1995(6):719-728. |
| [20] | Gu Q;Federzoni L;Jang W Y.γ→ε and γ→ε→α' transformation in a Fe-Mn-Si based shape memory steel[M].Beijing; Int Academic Publ,1994 |
| [21] | Li CL;Ma XP;Jin ZH .Influence of alpha' martensite on shape memory effect in Fe-14Mn-5Si-9Cr-5Ni alloy[J].Materials Science and Technology: MST: A publication of the Institute of Metals,1997(9):727-730. |
| [22] | Cu Q;Vanhumbeeck J;Delaey L .A review on the martensitic-transformation and shape-memory effect in Fe-Mn-Si alloys[J].Journal de Physique IV,1994,4(C3):135-144. |
| [23] | Shigeru Suzuki;Shotaro Senoo;Tadakatsu Maruyama .Characteristic Structural Changes in Stress-Induced Martensitic Transformation and Reverse Transformation of a Polycrystalline Fe-Mn-Si Alloy[J].Materials Transactions,2008(12):2755-2760. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%