scholarly journals CALCULATION OF CRYSTAL GROWTH IN 5BDSR AMORPHOUS ALLOY DURING HEAT TREATMENT

2018 ◽  
Vol 18 (4) ◽  
pp. 67-73
Author(s):  
P. Gamov ◽  
◽  
V. Chernobrovin ◽  
V. Dukmasov ◽  
B. Chaplygin ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Crystal Growth ◽  
Amorphous Alloy

Microstructure and Mechanical Properties of Ti-6Al-4V Alloy Samples Fabricated by Selective Laser Melting

2018 ◽  
Vol 770 ◽  
pp. 179-186 ◽  
Author(s):  
Jing Bo Gao ◽  
Xiao Li Zhao ◽  
Ju Kun Yue ◽  
Meng Chao Qi ◽  
De Liang Zhang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Crystal Growth ◽  
Yield Strength ◽  
Selective Laser Melting ◽  
Lamellar Structure ◽  
Growth Direction ◽  
Laser Melting ◽  
Α Phase ◽  
Dog Bone

Ti-6Al-4V (wt%) alloy samples with dog-bone and box shapes respectively were fabricated by selective laser melting (SLM). The microstructures and mechanical properties of the 3D printed Ti-6Al-4V samples with and without heat treatment were characterized and tested. The microstructures of the as-fabricated dog-bone shaped samples were mainly composed of acicular α’ phase. After annealing at 700°C, the acicular α’ phase changed into an α/β lamellar structure. After solution treatment at 955°C, water quenching and aging at 550°C, the microstructure was mainly composed of primary α phase and α/β lamellar structure. The optimum heat treatment is annealing, and the mechanical properties of the annealed sample are as follows: yield strength: 1015 MPa, ultimate tensile strength (UTS): 1083 MPa and elongation to fracture: 7.9%. The microstructures of the box-shaped samples after annealing mainly consist of α phase and α/β lamellar structure. When stretched along the direction parallel to the crystal growth direction, the yield strength and UTS of the sample are 1054 and 1090 MPa，and its elongation to fracture is 6.3%. When stretched along the direction perpendicular to the crystal growth direction, the yield strength and UTS of the sample are 1019 and 1068 MPa respectively, and its elongation to fracture is 8.7%.

Effect of heat treatment on the corrosion resistance of Ni-based and Cu-based amorphous alloy coatings

2008 ◽  
Vol 461 (1-2) ◽  
pp. 304-311 ◽  
Author(s):  
Y.H. Yoo ◽  
S.H. Lee ◽  
J.G. Kim ◽  
J.S. Kim ◽  
C. Lee
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Amorphous Alloy

scholarly journals Effect of heat treatment temperature to the crystal growth and optical performance of Mn3O4 doped α-Zn2SiO4 based glass-ceramics

2019 ◽  
Vol 15 ◽  
pp. 102569
Author(s):  
Mohd Hafiz Mohd Zaid ◽  
Khamirul Amin Matori ◽  
Sidek Hj Ab Aziz ◽  
Halimah Mohamed Kamari ◽  
Yap Wing Fen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Crystal Growth ◽  
Heat Treatment Temperature ◽  
Glass Ceramics ◽  
Treatment Temperature ◽  
Optical Performance

Effect of Heat Treatment on the Microstructure and Magnetic Properties of Amorphous Alloy Fe60Co19Zr9B12

2019 ◽  
Vol 61 (1-2) ◽  
pp. 27-31
Author(s):  
Wanqiu Yu ◽  
Qinglei Zhou ◽  
Zuoshan Liu ◽  
Haoqun Zeng ◽  
Zhiqun Wang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Properties ◽  
Amorphous Alloy ◽  
Microstructure And Magnetic Properties

Complex Analysis of Electrical Resistivity Dynamics of Co82Fe4Cr3Si8B3 Amorphous Alloy under Heat Treatment

2013 ◽  
Vol 811 ◽  
pp. 72-76 ◽  
Author(s):  
Aleksandr Kotvitckii ◽  
Galina Kraynova ◽  
Anatoly Frolov ◽  
Vitaly Ivanov
Keyword(s):  
Heat Treatment ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Amorphous Alloy ◽  
Room Temperature ◽  
Complex Analysis ◽  
Room Temperature Resistivity ◽  
Resistivity Minimum ◽  
Temperature Resistivity ◽  
Amorphous Character

In this paper the detailed analysis of thermal behavior of electrical resistivity of Co82Fe4Cr3Si8B3 amorphous alloy is made. It has been shown that within temperature range 230С <T< 5600С the structure of the alloy keeps its amorphous character and only a slight changes occurred. A high temperature (above room temperature) resistivity minimum was found at 160°C. This feature was related with Curie temperature of the alloy. It has been shown that change of electrical resistivity behavior at 350°C can be explained by reaching the Debye temperature of the alloy.

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