Microstructure and phase stress partition of Mo fiber reinforced CuZnAl composite

Yang, Feng; Ni, D.R.; Hao, Shijie; Li, Sirui; Ma, Z.Y.; Liu, Yinong; Feng, Chun; Cui, Lishan

doi:10.1016/j.msea.2015.01.068

Cited by 10 publications

(6 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar results have also been achieved in other brittle inclusion phases, including 2.9% elastic lattice strain for W nanoribbons, 1.8% for Mo microfibers, and 2.1% for Ti 5 Si 3 eutectic lamellae …”

Section: Other Phase Transforming–nanoinclusion Composite Systemssupporting

confidence: 82%

See 1 more Smart Citation

“Lattice Strain Matching”‐Enabled Nanocomposite Design to Harness the Exceptional Mechanical Properties of Nanomaterials in Bulk Forms

et al. 2019

Self Cite

View full text Add to dashboard Cite

Nanosized materials are known to have the ability to withstand ultralarge elastic strains (4–10%) and to have ultrahigh strengths approaching their theoretical limits. However, it is a long‐standing challenge to harnessing their exceptional intrinsic mechanical properties in bulk forms. This is commonly known as “the valley of death” in nanocomposite design. In 2013, a breakthrough was made to overcome this challenge by using a martensitic phase transforming matrix to create a composite in which ultralarge elastic lattice strains up to 6.7% are achieved in Nb nanoribbons embedded in it. This breakthrough was enabled by a novel concept of phase transformation assisted lattice strain matching between the uniform ultralarge elastic strains (4–10%) of nanomaterials and the uniform crystallographic lattice distortion strains (4–10%) of the martensitic phase transformation of the matrix. This novel concept has opened new opportunities for developing materials of exceptional mechanical properties or enhanced functional properties that are not possible before. The work in progress in this research over the past six years is reported.

show abstract

Section: Other Phase Transforming–nanoinclusion Composite Systemssupporting

confidence: 82%

“…These materials, due their generally higher elastic moduli, require higher lattice loads to generate the same lattice strains as for soft materials. This work has included W, Mo, Ti 3 Sn, and Ti 5 Si 3 . Figure shows a NiTi–Ti 3 Sn nanolamellae composite .…”

Section: Other Phase Transforming–nanoinclusion Composite Systemsmentioning

confidence: 99%

“Lattice Strain Matching”‐Enabled Nanocomposite Design to Harness the Exceptional Mechanical Properties of Nanomaterials in Bulk Forms

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…The final properties of an MMC depend on the chemical composition, on the nature of the interfaces, on the microstructure of the matrix, and on the stresses in the reinforcements and in the matrix. Many studies deal with load transfer between the phases in composite materials induced by external loading [ 1 , 2 ]. However, large stresses can be generated during the heat treatment, resulting from the differences in the coefficients of thermal expansion between matrix and reinforcements [ 3 , 4 , 5 ], and also from the phase transformations [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

In Situ Stress Tensor Determination during Phase Transformation of a Metal Matrix Composite by High-Energy X-ray Diffraction

et al. 2018

View full text Add to dashboard Cite

In situ high-energy X-ray diffraction using a synchrotron source performed on a steel metal matrix composite reinforced by TiC allows the evolutions of internal stresses during cooling to be followed thanks to the development of a new original experimental device (a transportable radiation furnace with controlled rotation of the specimen). Using the device on a high-energy beamline during in situ thermal treatment, we were able to extract the evolution of the stress tensor components in all phases: austenite, TiC, and even during the martensitic phase transformation of the matrix.

show abstract

“…The same is true for second-phase reinforced SMA composites, in which one component possesses intrinsic ultrahigh elastic strain limits and conventional elastic–plastic behavior 15 16 17 18 19 , and the other shows a superelasticity, which is mediated by a first order phase transformation 20 . Previous experimental works 21 22 23 24 25 have indicated that the present of stress-induced martensitic transformation (SIMT) leads to effective load transfer between SMA matrix and nano-reinforcements. We take the Nb NWs strengthened NiTi SMA (a type of NICSMA) for example, the high energy x-ray diffraction and high resolution transmission electron microscopy experimental results show that the discrete occurrence of B2-B19′ martensite phase can impose a discrete local strain field on NWs at the site of the transformation region, thus making the Nb NWs experience a completely different plastic deformation behaviors 14 24 26 .…”

mentioning

confidence: 99%

“…Figure 2(a) shows the evolution of strain for the NWs and SMA matrix during the pretreatment. The strain of each component in our simulation is calculated according to the relationship between phase stress and lattice strain proposed by refs 21 , 22 , 23 , 25 and 28 . Figure 2(b) compares the cyclic tensile stress-strain curves of the SMA-NWs composite after the mechanical pre-treatment.…”

mentioning

confidence: 99%

Origin of high strength, low modulus superelasticity in nanowire-shape memory alloy composites

Zhang

Zong

Cui

et al. 2017

Sci Rep

Self Cite

View full text Add to dashboard Cite

An open question is the underlying mechanisms for a recent discovered nanocomposite, which composed of shape memory alloy (SMA) matrix with embedded metallic nanowires (NWs), demonstrating novel mechanical properties, such as large quasi-linear elastic strain, low Young’s modulus and high yield strength. We use finite element simulations to investigate the interplay between the superelasticity of SMA matrix and the elastic-plastic deformation of embedded NWs. Our results show that stress transfer plays a dominated role in determining the quasi-linear behavior of the nanocomposite. The corresponding microstructure evolution indicate that the transfer is due to the coupling between plastic deformation within the NWs and martensitic transformation in the matrix, i.e., the martensitic transformation of the SMA matrix promotes local plastic deformation nearby, and the high plastic strain region of NWs retains considerable martensite in the surrounding SMA matrix, thus facilitating continues martensitic transformation in subsequent loading. Based on these findings, we propose a general criterion for achieving quasi-linear elasticity.

show abstract

Microstructure and phase stress partition of Mo fiber reinforced CuZnAl composite

Cited by 10 publications

References 15 publications

“Lattice Strain Matching”‐Enabled Nanocomposite Design to Harness the Exceptional Mechanical Properties of Nanomaterials in Bulk Forms

“Lattice Strain Matching”‐Enabled Nanocomposite Design to Harness the Exceptional Mechanical Properties of Nanomaterials in Bulk Forms

In Situ Stress Tensor Determination during Phase Transformation of a Metal Matrix Composite by High-Energy X-ray Diffraction

Origin of high strength, low modulus superelasticity in nanowire-shape memory alloy composites

Contact Info

Product

Resources

About