Molecular dynamic simulation on iron corrosion-reduction in high temperature molten lead-bismuth eutectic

Artoto ARKUNDATO; Zaki SU'UD; Mikrajuddin ABDULLAH; Widayani SUTRISNO

Makale detayları

Molecular dynamic simulation on iron corrosion-reduction in high temperature molten lead-bismuth eutectic

Yazarlar:

Artoto ARKUNDATO | Zaki SU'UD | Mikrajuddin ABDULLAH | Widayani SUTRISNO

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2013 Vol.37 Issue 1, pp.132-144

Belge Tipi:

Makale

Yayın Tarihi:

12/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760314

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

Molecular dynamic simulation on iron in high-temperature  molten lead-bismuth eutectic has been carried out to investigate the  iron corrosion and its mitigation.  The aim of the work is to  investigate the corrosion and evaluate proper oxygen content of  injection for significant and effective reduction.  To study the  phenomena we calculated the diffusion coefficients, radial  distribution functions and mean square displacement of iron, and also  observed the micro-structure of iron before and after oxygen injection  into coolant.  The present calculation shows that a significant and  effective reduction of corrosion can be achieved by injection of 7.68  \times 10-2-1.55 \times 10-1 wt% into coolant at temperature  750 °C. It is predicted that the lower limit of oxygen content, 7.68  \times 10-2 wt%, is the minimum value to develop a self-healing  stable protective oxide film for preventing high dissolution of iron;  and that the upper limit of oxygen content, 1.55 \times 10-1 wt%,  is the maximum value in order to avoid the precipitation of coolant  oxides.  By injection of 7.68 \times 10-2 wt% of oxygen, the  corrosion rate has been reduced about 92.16% at 750 °C, and reduced  by 98.66% at the lower temperature 550 °C, compared with the normal,  oxygenless condition.

 

Molecular dynamic simulation on iron in high-temperature  molten lead-bismuth eutectic has been carried out to investigate the  iron corrosion and its mitigation.  The aim of the work is to  investigate the corrosion and evaluate proper oxygen content of  injection for significant and effective reduction.  To study the  phenomena we calculated the diffusion coefficients, radial  distribution functions and mean square displacement of iron, and also  observed the micro-structure of iron before and after oxygen injection  into coolant.  The present calculation shows that a significant and  effective reduction of corrosion can be achieved by injection of 7.68  \times 10-2-1.55 \times 10-1 wt% into coolant at temperature  750 °C. It is predicted that the lower limit of oxygen content, 7.68  \times 10-2 wt%, is the minimum value to develop a self-healing  stable protective oxide film for preventing high dissolution of iron;  and that the upper limit of oxygen content, 1.55 \times 10-1 wt%,  is the maximum value in order to avoid the precipitation of coolant  oxides.  By injection of 7.68 \times 10-2 wt% of oxygen, the  corrosion rate has been reduced about 92.16% at 750 °C, and reduced  by 98.66% at the lower temperature 550 °C, compared with the normal,  oxygenless condition.

Makale detayları

Molecular dynamic simulation on iron corrosion-reduction in high temperature molten lead-bismuth eutectic

Yazarlar:

Artoto ARKUNDATO | Zaki SU'UD | Mikrajuddin ABDULLAH | Widayani SUTRISNO

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2013 Vol.37 Issue 1, pp.132-144

Belge Tipi:

Makale

Yayın Tarihi:

12/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760314

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Corrosion of pure iron

lead-bismuth eutectic

molecular dynamic

diffusion

oxygen content

Sayı

Makale detayları

Molecular dynamic simulation on iron corrosion-reduction in high temperature molten lead-bismuth eutectic

Yazarlar: Artoto ARKUNDATO | Zaki SU'UD | Mikrajuddin ABDULLAH | Widayani SUTRISNO

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2013 Vol.37 Issue 1, pp.132-144

Belge Tipi: Makale

Yayın Tarihi: 12/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000760314

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Corrosion of pure iron

lead-bismuth eutectic

molecular dynamic

diffusion

oxygen content

Sayı

Yazarlar:

Artoto ARKUNDATO | Zaki SU'UD | Mikrajuddin ABDULLAH | Widayani SUTRISNO

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2013 Vol.37 Issue 1, pp.132-144

Belge Tipi:

Makale

Yayın Tarihi:

12/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760314

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101