Effect Of Milling Time On Microstructure Of Mechanically Alloyed Al-Ti Powders

Supriyanto, Adolf Asih; Daud, Abdul Razak

doi:10.1063/1.3295580

Cited by 3 publications

(11 citation statements)

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“…While the peak at 2θ It can be seen that the Ti peaks are still visible when the milling time is 15 hours ( Figure 5). But with the increasing milling time at 20 hours, the Ti peaks tend to disappear which indicates the alloying of Al and Ti elements [10]. When the milling time continues to increase and reaches 30 hours, all the Ti peaks disappear, revealing the completion of the alloying.…”

Section: Resultsmentioning

confidence: 98%

“…From Figure 2, the broadening of the Al peaks is commonly attributed to the structural change in the samples, such as the formation of amorphous phases, large lattice strains in grains, or the embedding of very small crystals in an amorphous matrix [10]. Using the Hall-Williamson Method, the crystallite size of the Al-10wt%Ti powders after mechanical alloying for various ball sizes is shown in Figure 4.…”

Section: Resultsmentioning

confidence: 99%

“…From the pattern, the peak position of Al reflections shifts to higher 2 angles. The peak position of the Al reflection for the ball sizes of 10, 15, and 20 mm are 38.5400 o , 38.5626 o , and 38.5645 o respectively, relating to the reduction of the Al lattice parameter, due to Ti dissolution in Al [10]. The Al lattice parameter, as calculated from the XRD pattern, is shown in Figure 3.…”

Section: Methodsmentioning

confidence: 97%

“…The balls sizes were 10, 15 and 20 mm. Several milling times were used ranging 2 up to 30 hours, interrupted for 30 minutes every 2.5 hours in order to minimize excessive temperature rise and to limit adherence of the powder to container walls [6,10].…”

Section: Methodsmentioning

confidence: 99%

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The Effect of Ball Size on Hardness of Mechanically Alloyed Al-10wt.%Ti Powders

Supriyanto¹,

Widodo²,

Tauvana³

et al. 2020

International Journal of Advanced Technology in Mechanical, Mec

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Particle size and hardness of Al-10%wt.Ti powders due to the influence of ball diameter have been carried out using mechanical alloying techniques. The milling device used consisted of a Fritsch Pulverisette-5 planetary type ball mill with the rotational speed of about 360 rpm and balls size of 10, 15 and 20 mm. The materials used are stearic acid which was used as a process control agent, aluminum and titanium powders. A mixture of aluminum and titanium powders has the composition of Al-10wt.%Ti. The Al-10wt.%Ti powders, stearic acid and stainless-steel balls were added to the Fritsch Pulverisette-5 planetary in the argon gas environment. The weight ratio of stainless steel balls to the Al-10wt.%Ti powder was 20 : 1. The mixing time process was carried out for 5, 10, 15, 20 and 30 hours, respectively. Changes in phase compositions of these Al-Ti powders under different ball mill sizes were examined by XRD, and the optimum experimental parameter was obtained: the ball mill size was 20 mm. It was found that from the diffraction patterns of the Al-10wt.%Ti powders, the peaks of titanium begin to disappear with the increasing of the milling time, which indicates the increasing degrees of alloying of titanium atoms in the aluminum matrix. The microhardness test results showed that the hardness increases with increasing ball size.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Ball Size on Hardness of Mechanically Alloyed Al-10wt.%Ti Powders

Supriyanto¹,

Widodo²,

Tauvana³

et al. 2020

International Journal of Advanced Technology in Mechanical, Mec

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“…Kemudian 1 batang Ti-4%beratAl dianil pada suhu 900 o selama 3,5 jam dan 2 batang Ti-4%beratAl dianil pada suhu 850 o C masing-masing selama 1 dan 4 jam. Difraksi sinar-x dengan metode refleksi digunakan untuk menentukan tekstur yang dinyatakan dengan gambar kutub (11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Uji Tarik dilakukan terhadap bahan yang dianil pada suhu 850 o C selama 1 jam.…”

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Tekstur dan Uji Tarik Ti~4% berat Al yang Dicanai Searah pada Suhu 1100 C

Supriyanto¹,

Syafrizal²,

Tauvana³

2021

j.rekayasa.mesin.

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Saat ini masih jarang ditemukan penelitian menggunakan paduan Al-Ti dengan komposisi berat Al yang sangat kecil. Tidak banyak orang melakukan penelitian tekstur tentang bahan ini. Proses canai dan anil dapat mempengaruhi tekstur dan sifat mekanik bahan. Pada penelitian ini telah dilakukan proses canai dan anil terhadap bahan Ti-4%beratAl. Tujuan dari penelitan ini adalah untuk mengetahui anisotropi uji tarik bahan tersebut akibat proses canai dan anil. Bahan yang digunakan adalah 3 batang Ti-4%beratAl yang dicanai pada suhu 1100 oC dengan reduksi tebal 96%. Kemudian 1 batang Ti-4%beratAl dianil pada suhu 900 oC selama 3,5 jam dan 2 batang Ti-4%beratAl dianil pada suhu 850 oC masing-masing selama 1 dan 4 jam. Difraksi sinar-x dengan metode refleksi digunakan untuk menentukan tekstur yang dinyatakan dengan gambar kutub (11-20). Uji Tarik dilakukan terhadap bahan yang dianil pada suhu 850 oC selama 1 jam. Hasil menunjukan bahwa Ti-4%beratAl yang dianil pada 850oC selama 1 jam memiliki tekstur dengan bidang kutub (11-20) terpecah di daerah sekitar ±30o dari arah arah normal (AN) ke arah canai (AC). Hasil uji tarik menunjukkan bahwa nilai UTS untuk arah AC, 45 oC dan AL berturut-turut adalah 651MPa, 571MPa dan 632MPa.

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Microstructural and Eddy Current Evaluation of Ball-Milled Nanostructured Aluminum–Titanium Alloys

Abada,

Younes

2023

Trans Indian Inst Met

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Effect Of Milling Time On Microstructure Of Mechanically Alloyed Al-Ti Powders

Cited by 3 publications

References 2 publications

The Effect of Ball Size on Hardness of Mechanically Alloyed Al-10wt.%Ti Powders

The Effect of Ball Size on Hardness of Mechanically Alloyed Al-10wt.%Ti Powders

Tekstur dan Uji Tarik Ti~4% berat Al yang Dicanai Searah pada Suhu 1100 C

Microstructural and Eddy Current Evaluation of Ball-Milled Nanostructured Aluminum–Titanium Alloys

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