Thermal stability of the Al70Ni10Ti10Zr5Ta5 amorphous alloy powder fabricated by mechanical alloying

2010 ◽  
Vol 496 (1-2) ◽  
pp. 313-316 ◽  
Author(s):  
Xiu Wei ◽  
Xinfu Wang ◽  
Fusheng Han ◽  
Haowen Xie ◽  
Cui’e Wen
Keyword(s):  
Thermal Stability ◽  
Amorphous Alloy ◽  
Mechanical Alloying ◽  
Alloy Powder ◽  
Amorphous Alloy Powder ◽  
Thermal Stability Of

Preparation of AlXTa1−X amorphous alloy powder by mechanical alloying

1990 ◽  
Vol 117-118 ◽  
pp. 729-732 ◽  
Author(s):  
Mohamed Sherif El-Esksndarany ◽  
Fumitake Itoh ◽  
Kiyoshi Aoki ◽  
Kenji Suzuki
Keyword(s):  
Amorphous Alloy ◽  
Mechanical Alloying ◽  
Alloy Powder ◽  
Amorphous Alloy Powder

scholarly journals New Method of Fabrication of Fe80Cr20 Alloy: Effect of its Technique on Crystallite Size and Thermal Stability

2020 ◽  
Vol 1 (1) ◽  
pp. 26-31
Author(s):  
Dafit Feriyanto ◽  
Supaat Zakaria
Keyword(s):  
Thermal Stability ◽  
Mechanical Alloying ◽  
Crystallite Size ◽  
Combination Treatment ◽  
Alloy Powder ◽  
Xrd Analysis ◽  
New Method ◽  
Ultrasonic Technique ◽  
Mechanically Alloyed ◽  
Thermal Stability Of

This paper focuses on the effect of the new method on the crystallite size and thermal stability of Fe80Cr20 alloy powder. Generally, the ball milling sample and ultrasonic technique sample have dissatisfaction result when applied at high temperature. In addition, the combination of both techniques not yet carried out. Therefore, this study aim to investigate an appropriate technique to produce smallest crystallite size in order to improve the thermal stability. The new method of mechanical alloying (mill) and ultrasonic technique (UT) were applied in order to reduce the crystallite size and improve thermal stability. The new method is called as combination treatment. This condition allows the enhancement of thermal stability of Fe80Cr20 alloy powder. In this study, mechanical alloying process was carried out by milling time of 60 hours. Then, the ultrasonic technique was performed at frequency of 35 kHz at 3, 3.5, 4, 4.5, and 5 hours. From XRD analysis, it was found that the broader peaks indicated the smaller crystallite size. It shows that the combination treatment (milled and UT) reduce the crystallite size up to 2.171 nm when mechanically alloyed for 60 hours (milled 60 h) and followed by ultrasonic treatment for 4.5 hours (UT 4.5 h). Smallest crystallite size enhance the thermal stability up to 12.7 mg which shown by TGA analysis during 1100 0C temperature operation. The combination treatment is method which is effective to fabricate Fe80Cr20 alloy powder.

A New Ti-Based Amorphous Powder Synthesized by Mechanical Alloying

2012 ◽  
Vol 433-440 ◽  
pp. 642-645
Author(s):  
Yu Ying Zhu ◽  
Qiang Li ◽  
Yun Hua He ◽  
Ge Wang ◽  
Xing Hua Wang
Keyword(s):  
Crystal Structure ◽  
Amorphous Alloy ◽  
Mechanical Alloying ◽  
Ball Mill ◽  
Alloy Powder ◽  
Amorphous Powder ◽  
High Energy ◽  
Argon Atmosphere ◽  
Liquid Region ◽  
Amorphous Alloy Powder

A new quaternary amorphous alloy powder Ti50Fe22Ni22Sn6are prepared by mechanical alloying. The milling was performed under an argon atmosphere in a high-energy planetary ball mill. After milled 70h, fully amorphous Ti50Fe22Ni22Sn6powders can be obtained, with the condition of the milling speed, 300rpm, and the weighs ratio of ball to powder, 10:1. Crystal structure of the milled powders is investigated by XRD. Thermal analysis show that when the heating rate increasing from 10K/min to 40K/min, the super-cooled liquid region of milled amorphous alloy increased from 93K to 110K.

Sign in / Sign up

Export Citation Format

Share Document