scholarly journals Development of Cu-Zr Alloy Wire with Tensile Strength of 2.2 GPa in Maximum and Its Microstructure

2011 ◽  
Vol 75 (3) ◽  
pp. 159-165
Author(s):  
Naokuni Muramatsu ◽  
Hisamichi Kimura ◽  
Akihisa Inoue
Keyword(s):  
Tensile Strength ◽  
Alloy Wire ◽  
Zr Alloy

Development and Microstructure of Cu–Zr Alloy Wire with Ultimate Tensile Strength of 2.2 GPa

2012 ◽  
Vol 53 (6) ◽  
pp. 1062-1068 ◽  
Author(s):  
Naokuni Muramatsu ◽  
Hisamichi Kimura ◽  
Akihisa Inoue
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Alloy Wire ◽  
Zr Alloy

scholarly journals Obtaining a Wire of Biocompatible Superelastic Alloy Ti–28Nb–5Zr

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2187
Author(s):  
Elena O. Nasakina ◽  
Sergey V. Konushkin ◽  
Maria A. Sudarchikova ◽  
Konstantin V. Sergienko ◽  
Alexander S. Baikin ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Tensile Strength ◽  
Relative Elongation ◽  
Electric Arc ◽  
Alloy Wire ◽  
Arc Melting ◽  
Homogeneous Chemical ◽  
The Wire ◽  
Proof Strength ◽  
Zr Alloy

Using the methods of electric arc melting, intermediate heat treatments, and consecutive intensive plastic deformation, a Ti–Nb–Zr alloy wire with a diameter of 1200 μm was obtained with a homogeneous chemical and phase (β-Ti body-centered crystal lattice) composition corresponding to the presence of superelasticity and shape memory effect, corrosion resistance and biocompatibility. Perhaps the wire structure is represented by grains with a nanoscale diameter. For the wire obtained after stabilizing annealing, the proof strength Rp0.2 is 635 MPa, tensile strength is 840 MPa and Young’s modulus is 22 GPa, relative elongation is 6.76%. No toxicity was detected. The resulting wire is considered to be promising for medical use.

scholarly journals Effects of Gd, Y Content on the Microstructure and Mechanical Properties of Mg-Gd-Y-Nd-Zr Alloy

Metals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 790 ◽  
Author(s):  
Changping Tang ◽  
Kai Wu ◽  
Wenhui Liu ◽  
Di Feng ◽  
Xuezhao Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Solution Treatment ◽  
Age Hardening ◽  
Uniaxial Tensile ◽  
Microstructure And Mechanical Properties ◽  
Shaped Particle ◽  
Zr Alloy ◽  
Non Equilibrium

The effects of Gd, Y content on the microstructure and mechanical properties of Mg-Gd-Y-Nd-Zr alloy were investigated using hardness measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and uniaxial tensile testing. The results indicate that the alloys in as-cast condition mainly consist of α-Mg matrix and non-equilibrium eutectic Mg5.05RE (RE = Gd, Y, Nd). After solution treatment, the non-equilibrium eutectics dissolved into the matrix but some block shaped RE-rich particles were left at the grain boundaries and within grains. These particles are especially Y-rich and deteriorate the mechanical properties of the alloys. Both the compositions of the eutectic and the block shaped particle were independent of the total Gd, Y content of the alloys, but the number of the particles increases as the total Gd, Y content increases. The ultimate tensile strength increases as the total Gd, Y content decreases. A Mg-5.56Gd-3.38Y-1.11Nd-0.48Zr alloy with the highest ultimate tensile strength of 280 MPa and an elongation of 1.3% was fabricated. The high strength is attributed to the age hardening behavior and the decrease in block shaped particles.

scholarly journals The Phase Composition and Mechanical Properties of the Novel Precipitation-Strengthening Al-Cu-Er-Mn-Zr Alloy

2020 ◽  
Vol 10 (15) ◽  
pp. 5345
Author(s):  
Sayed Amer ◽  
Olga Yakovtseva ◽  
Irina Loginova ◽  
Svetlana Medvedeva ◽  
Alexey Prosviryakov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Tensile Strength ◽  
Phase Composition ◽  
Ultimate Tensile Strength ◽  
Cast Alloy ◽  
Precipitation Strengthening ◽  
The Novel ◽  
Annealed Alloy ◽  
Zr Alloy

The microstructure, phase composition, and mechanical properties during heat treatment and rolling of the novel Al-5.0Cu-3.2Er-0.9Mn-0.3Zr alloy were evaluated. A new quaternary (Al,Cu,Mn,Er) phase with possible composition Al25Cu4Mn2Er was found in the as-cast alloy. Al20Cu2Mn3 and Al3(Zr,Er) phases were nucleated during homogenization, and θ″(Al2Cu) precipitates were nucleated during aging. The metastable disc shaped θ″(Al2Cu) precipitates with a thickness of 5 nm and diameter of 100–200 nm were nucleated mostly on the Al3(Zr,Er) phase precipitates with a diameter of 35 nm. The hardness Vickers (HV) peak was found after the annealing of a rolled alloy at 150 °C due to strengthening by θ″(A2Cu) precipitates, which have a larger effect in materials hardness than do the softening processes. The novel Al-Cu-Er-Mn-Zr alloy has a yield strength (YS) of 320–332 MPa, an ultimate tensile strength (UTS) of 360–370 MPa, and an El. of 3.2–4.0% in the annealed alloy after rolling condition.

Effect of Mo and Bi on Mechanical Properties of Zr-Fe-Cr Alloy at Room Temperature

2013 ◽  
Author(s):  
B. F. Luan ◽  
L. Q. Yang ◽  
T. G. Wei ◽  
K. L. Murty ◽  
C. S. Long ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Electron Microscope ◽  
Ultimate Tensile Strength ◽  
Yield Strength ◽  
Room Temperature ◽  
Mechanical Performance ◽  
Microstructure Observation ◽  
Scanning Electron ◽  
Zr Alloy

To investigate the effects of Mo and Bi on mechanical properties of a Zr-Fe-Cr alloy at room temperature, seven Zr-Fe-Cr-Mo-Bi alloys with different compositions were designed. They were subjected to a series of rolling processes and heat treatments, and then sampled to measure mechanical properties by hardness and tensile test and to characterize microstructures by scanning electron microscope (SEM) and electron channel contrast (ECC) technique. Results indicated that among them two types of Zr-Fe-Cr-Mo-Bi alloys achieve the designed goals on mechanical properties and have the following advantages: (i) the hardness of the alloys, up to 334HV after annealing, is 40% higher than traditional Zr-4. (ii) The yield strength (YS) and ultimate tensile strength (UTS) of the alloys are 526 MP a and 889 MP a after hot rolling and annealing, markedly higher than the traditional Zr alloy. (iii) Good plasticity of the new Zr-Fe-Cr-Mo-Bi alloy is obtained with about 40% elongation, which is greatly higher than the Zr-Fe-Cr-Mo alloy thanks to the addition of Bi offsetting the disadvantage of addition Mo. Furthermore, according to observations of the microstructure observation, the reasons of the effect of the Mo and Bi elements on the mechanical performance of Zr-Fe-Cr alloy were studied and discussed.

Effect of RE Addition on Microstructure and Properties of As-Cast Mg-6Zn-Zr Alloy

2013 ◽  
Vol 711 ◽  
pp. 110-114
Author(s):  
Seung Jin Lee ◽  
Joon Sik Park ◽  
Jeong Min Kim ◽  
Ki Tae Kim
Keyword(s):  
Electrical Conductivity ◽  
Grain Size ◽  
Tensile Strength ◽  
Corrosion Resistance ◽  
Room Temperature ◽  
Filling Ability ◽  
High Microhardness ◽  
Cast Microstructure ◽  
Zr Alloy ◽  
Zr Alloys

Typical as-cast microstructure of the MgZnRE-Zr alloys consists primarily of Mg matrix, MgZn and MgRE phases. Although the electrical conductivity was a slightly reduced by Ce-rich RE addition, the conductivity was remained high. Microhardness at room temperature and tensile strength at 200°C were clearly enhanced by the addition. Fluidity as mold filling ability was observed to increase significantly with the RE addition partly due to reduced grain size and solidification range, however the corrosion resistance predicted from polarization curves was little decreased.

Experimental Study on Welding Process of TC4 Titanium Alloy with Different Welding Wires

2021 ◽  
Vol 1035 ◽  
pp. 57-62
Author(s):  
Guo Qiang Shang ◽  
Li Ping Li ◽  
Xin Nan Wang
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Tensile Strength ◽  
Titanium Alloy ◽  
Cross Section ◽  
Welding Process ◽  
Alloy Wire ◽  
Tc4 Titanium Alloy ◽  
Weld Area ◽  
Evolution Of Microstructure

In present study, the effects of different welding wires on the evolution of microstructure and mechanical properties of TC4 titanium alloy test plates were studied. The results show that the test plates welded by TA20 titanium alloy wire, TC3 titanium alloy wire and TC4 titanium alloy wire are well formed, no defects are found in the cross section of the weld. The microstructures of these test plates are similar, and needle-like martensite exists in the weld area. In comparison, this is little obvious difference in tensile strength among these test plates welded by different welding wires, while the plates welded by TC4 titanium alloy has better elongation, contraction of aera, impact toughness and better balance of strength and toughness.

Effects of Technical Parameters on Process Stability and Microstructure during Continuous Rheo-Extrusion Process of 6201 Alloy Wire

2012 ◽  
Vol 503-504 ◽  
pp. 219-222 ◽  
Author(s):  
Ren Guo Guan ◽  
Zhan Yong Zhao ◽  
Chao Lian ◽  
Run Ze Chao ◽  
Chun Ming Liu
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Extrusion Process ◽  
Process Stability ◽  
Optimal Process ◽  
Alloy Wire ◽  
Rotating Speed ◽  
Technical Parameters ◽  
Conducting Wire ◽  
Better Than

In this paper, effects of technical parameters on process stability and microstructure during continuous rheo-extrusion process of 6201 alloy wire were investigated. The optimal process parameters for producing 6201 alloy wire are obtained. The casting temperature is from 720°C to 740°C, and the roll rotating speed is 15r/min. The 6201 alloy wire with good performance has been successfully manufactured. After heat treatment, the tensile strength of the product reaches 325 MPa and the resistivity reaches 32.47 nΩm, which is better than LHA2 conducting wire of China.

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