Remarkable improvement of shape memory effect in Fe–Mn–Si–Cr–Ni–C alloy by ageing with deformation

Wen, Yuhua; Yan, Mi; Li, N.

doi:10.1016/j.scriptamat.2003.12.015

Cited by 27 publications

(20 citation statements)

References 7 publications

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“…[25,29] The specimens cut from the cold-drawn wires with 1.5 mm diameter were first straightened, and then were solution treated under constraints at 1373 K for 30 min, followed by water quenching. Some of the solution-treated specimens were subjected to four cycles of training, which consisted of 5% tensile deformation and annealing at 873 K.…”

Section: Methodsmentioning

confidence: 99%

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

et al. 2010

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The proposed key to producing a good shape memory effect in FeMnSi alloys is to reduce or even prevent the collisions between martensite bands. A method for realizing this is to make stress‐induced martensite bands form in a domain‐specific manner. We developed a novel training‐free cast Fe18Mn5.5Si9.5Cr4Ni alloy with residual lathy delta ferrite based on this idea. The recovery strain reached 6.4% only after annealing the cast Fe18Mn5.5Si9.5Cr4Ni alloy. Microstructure observations indicated that the lathy delta ferrite made the stress‐induced martensite form in a domain‐specific manner by first subdividing grains into smaller domains. We hypothesize that through adjusting alloy compositions, solidification parameters, and heat treatment technique, the shape recovery of cast FeMnSi alloys can be further improved. Such a finding will provide a novel method for developing training‐free FeMnSi shape memory alloys.

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Section: Methodsmentioning

confidence: 99%

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

et al. 2010

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“…The single M 23 C 6 carbide has also been observed for the Fe-15Mn-5Si-8Cr-4Ni-0.18C and Fe-13.53Mn-4.86Si-8.16Cr-3.82Ni-0.16C alloys. [25][26][27] However, the results shown in Figs. 2, 4, and 5 are the first time to simultaneously observe both -phase and M 23 C 6 carbide in one alloy.…”

Section: Methodsmentioning

confidence: 86%

Effects of Carbon Content and Thermo-Mechanical Treatment on Fe59Mn30Si6Cr5CX (X=0.015–0.1 mass%) Shape Memory Alloys

Yang

Lin

et al. 2008

Mater. Trans.

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Slight amounts of carbon (0:015{0:1 mass%) were added into the Fe-30Mn-6Si-5Cr shape memory alloy. The microstructure, precipitation behaviour and shape memory performance of these Fe 59 Mn 30 Si 6 Cr 5 C X alloys with various thermo-mechanical treatments were investigated. Experimental results show that two particles, the -phase and M 23 C 6 carbide, are observed within the grain-boundary phases. M 23 C 6 carbide only appears in an alloy with high carbon content, but the -phase can form in all alloys with low and high carbon contents. The deformationinduced defects in the 10% pre-deformed specimens are preferential sites for nucleation of precipitates (the -phase and M 23 C 6 carbide) in the following aging treatment. After 550{800 C aging, the rearranged uniform defects and homogeneous precipitates within the grain interior will strengthen the matrix and increase the shape recovery ability. After 850{900 C aging, both the uniform defects and homogeneous precipitates disappear due to recrystallization, and hence the specimen's shape recovery ratios are significantly reduced.

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“…The other group was subjected to ageing at 1073 K for different times after different amount of tensile pre-deformation. The SME was determined by bending test as described in reference [6]. The bending strain is 5.…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Improvement of shape memory effect in an Fe–Mn–Si–Cr–Ni–Nb–C alloy by NbC precipitated through ageing after pre-deformation

Wang

Wen

Zhang

et al. 2007

Journal of Alloys and Compounds

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Remarkable improvement of shape memory effect in Fe–Mn–Si–Cr–Ni–C alloy by ageing with deformation

Cited by 27 publications

References 7 publications

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

Effects of Carbon Content and Thermo-Mechanical Treatment on Fe<SUB>59</SUB>Mn<SUB>30</SUB>Si<SUB>6</SUB>Cr<SUB>5</SUB>C<I><SUB>X</SUB></I> (<I>X</I>=0.015–0.1 mass%) Shape Memory Alloys

Improvement of shape memory effect in an Fe–Mn–Si–Cr–Ni–Nb–C alloy by NbC precipitated through ageing after pre-deformation

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Remarkable improvement of shape memory effect in Fe–Mn–Si–Cr–Ni–C alloy by ageing with deformation

Cited by 27 publications

References 7 publications

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

A Novel Training‐Free Cast FeMnSiCrNi Shape Memory Alloy Based on Formation of Martensite in a Domain‐Specific Manner

Effects of Carbon Content and Thermo-Mechanical Treatment on Fe<SUB>59</SUB>Mn<SUB>30</SUB>Si<SUB>6</SUB>Cr<SUB>5</SUB>C<I><SUB>X</SUB></I> (<I>X</I>=0.015&ndash;0.1 mass%) Shape Memory Alloys

Improvement of shape memory effect in an Fe–Mn–Si–Cr–Ni–Nb–C alloy by NbC precipitated through ageing after pre-deformation

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Effects of Carbon Content and Thermo-Mechanical Treatment on Fe<SUB>59</SUB>Mn<SUB>30</SUB>Si<SUB>6</SUB>Cr<SUB>5</SUB>C<I><SUB>X</SUB></I> (<I>X</I>=0.015–0.1 mass%) Shape Memory Alloys