scholarly journals In Situ Bending Reveals Simultaneous Enhancements of Strength and Ductility of Cortical and Cancellous Layers Induced by the Cartilage Layer

ACS Omega ◽  
2021 ◽  
Author(s):  
Zhichao Ma ◽  
Bin Huang ◽  
Fangzhou Lu ◽  
Hongwei Zhao ◽  
Luquan Ren
Keyword(s):  
Cartilage Layer ◽  
Strength And Ductility

Mechanical And Superconducting Properties Of Cu-Nb3Sn In Situ Produced Composite Wires

1981 ◽  
Vol 12 ◽  
Author(s):  
A. Kolb-Telieps ◽  
B.L. Mordike ◽  
M. Mrowiec
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Wide Temperature Range ◽  
Volume Fraction ◽  
Superconducting Properties ◽  
Temperature Range ◽  
Composite Wires ◽  
Strength And Ductility

ABSTRACTCu-Nb composite wires were produced from powder, electrolytically coated with tin and annealed to convert the Nb fibres to Nb 3Sn. The content was varied between 10 wt % and 40 wt %. The superconducting properties of the wires were determined. The mechanical properties, tensile strength, yield strength and ductility were measured as a function of volume fraction and deformation over a wide temperature range. The results are compared with those for wires produced by different techniques.

Effects of Si content on the microstructure and tensile strength of an in situAl/Mg2Si composite

1999 ◽  
Vol 14 (1) ◽  
pp. 68-74 ◽  
Author(s):  
Jian Zhang ◽  
Yu-qing Wang ◽  
Bing Yang ◽  
Ben-lian Zhou
Keyword(s):  
Tensile Strength ◽  
Metal Matrix ◽  
Die Casting ◽  
Solidification Process ◽  
Matrix Composites ◽  
Fracture Characteristics ◽  
Casting Technique ◽  
Si Content ◽  
Strength And Ductility

Al/Mg2Si composites were in situ fabricated by the usual die-casting technique, and effects of the Si contents in the composites on microstructures and tensile strengths were investigated. Experimental results show that extra Si contents in Al/Mg2Si composites induce a ductile matrix and a uniform distribution of in situ particles. The refined microstructures lead to an obvious increase in both strength and ductility of the metal matrix composites (MMCs). The effects of extra Si on both the solidification process and fracture characteristics of the Al/Mg2Si composites were analyzed.

scholarly journals Microstructure and Mechanical Properties of High Vacuum Die-Cast AlSiMgMn Alloys at as-Cast and T6-Treated Conditions

Materials ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2065
Author(s):  
Fei Liu ◽  
Haidong Zhao ◽  
Runsheng Yang ◽  
Fengzhen Sun
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Failure Modes ◽  
High Vacuum ◽  
High Strength ◽  
Thin Wall ◽  
T6 Heat Treatment ◽  
Die Cast ◽  
Strength And Ductility

Al–Si–Mg based alloys can provide high strength and ductility to satisfy the increasing demands of thin wall castings for automotive applications. This study has investigated the effects of T6 heat-treatment on the microstructures, the local mechanical properties of alloy phases and the fracture behavior of high vacuum die-cast AlSiMgMn alloys using in-situ scanning electron microscopy (SEM) in combination with nano-indentation testing. The microstructures of the alloys at as-cast and T6 treated conditions were compared and analyzed. It is found that the T6 heat treatment plays different roles in affecting the hardness and the Young’s modulus of alloy phases. This study also found that the T6 heat treatment would influence the failure modes of the alloys. The mechanisms of crack propagation in the as-cast and T6 treated alloys were also analyzed and discussed.

scholarly journals Revealing the role of microstructure architecture on strength and ductility of Ni microwires by in-situ synchrotron X-ray diffraction

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Ravi raj purohit Purushottam raj purohit ◽  
Abhinav Arya ◽  
Girish Bojjawar ◽  
Maxime Pelerin ◽  
Steven Van Petegem ◽  
...  
Keyword(s):  
X Ray Diffraction ◽  
X Ray ◽  
Strength And Ductility

Balanced strength and ductility improvement of in situ crosslinked polylactide/poly(ethylene terephthalate glycol) blends

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34821-34830 ◽  
Author(s):  
Rui-Ying Bao ◽  
Wen-Rou Jiang ◽  
Zheng-Ying Liu ◽  
Wei Yang ◽  
Bang-Hu Xie ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Melt Blending ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Reactive Melt ◽  
Strength And Ductility

Polylactide/poly(ethylene terephthalate glycol) (PLA/PETG) blends with balanced strength and ductility improvement were achieved by crosslinking of PLA matrix and interfacial compatibilization via reactive melt blending.

scholarly journals Coexistence of multi-deformation modes in beta Ti alloys with improved yielding strength and ductility

2020 ◽  
Vol 321 ◽  
pp. 11069
Author(s):  
Guanfang Chen ◽  
Jinyong Zhang ◽  
Yangyang Fu ◽  
Zheng Chen ◽  
Fan Sun ◽  
...  
Keyword(s):  
Mechanical Twinning ◽  
Dislocation Glide ◽  
Ti Alloys ◽  
Martensitic Phase Transformations ◽  
Ebsd Technique ◽  
Deformation Modes ◽  
Novel Design ◽  
Strain Hardening Rate ◽  
Strength And Ductility

By suppressing SIM (stress induced martensitic) phase transformations, a strong and ductile beta TWIP (twinning induced plasticity) Ti-Mo based alloy was achieved, thanking to the coexistence of mechanical twinning ({112}<111> mode and {332} <113> mode) and dislocation glide. The alloy displayed extra high yielding stress, stable strain-hardening rate and adequate ductility. In-situ traction/EBSD technique and TEM characterizations were employed to investigate the plastic deformation mechanism. The dislocation slipping was mediated by bimodal twinning mechanism, composed by high density nano-scale {112} twinning in micro {332} twinning grid. The study aims to exploit novel design strategy for strengthening ductile TWIP Ti alloys, attributed to multimodal twinning effects.

Microstructures and Mechanical Properties of NiAl-Mo Composites

2004 ◽  
Vol 842 ◽  
Author(s):  
H. Bei ◽  
E. P. George
Keyword(s):  
Electron Back Scatter Diffraction ◽  
Floating Zone ◽  
Orientation Relationships ◽  
Brittle Transition ◽  
Fiber Spacing ◽  
Ductile Brittle Transition Temperature ◽  
Diffraction Patterns ◽  
Strength And Ductility ◽  
Nial Matrix

ABSTRACTIn-situ composites consisting of ∼14 vol.% continuous Mo fibers embedded in a NiAl matrix were produced by directional solidification in a xenon-arc-lamp, floating-zone furnace. The fiber spacing and size were controlled in the range 1–2 μm and 400–800 nm, respectively, by varying the growth rate between 80 and 20 mm/h. Electron back-scatter diffraction patterns from the constituent phases revealed that the growth directions and interface boundaries exhibited the following orientation relationships: 〈l00〉NiAl//〈100〉Mo and {011}NiAl//{011}Mo. The temperature dependence of the tensile strength and ductility were investigated and the NiAl-Mo composite was found to be both stronger and have a lower ductile-brittle transition temperature than the unreinforced NiAl matrix.

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