scholarly journals Wrought Aluminium Alloy Corrosion Propensity in Domestic Food Cooking Environment

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
S. O. Adeosun ◽  
E. I. Akpan ◽  
S. A. Balogun
Keyword(s):  
Aluminium Alloy ◽  
Capsicum Annuum ◽  
Allium Cepa ◽  
Corrosion Behaviour ◽  
Microstructural Analysis ◽  
Second Phase ◽  
Capsicum Annuum L ◽  
Heating And Cooling ◽  
Corrosion Pits ◽  
Domestic Food

The study on corrosion behaviour of wrought aluminium alloy in domestic food cooking conditions has been examined using the gravimetric approach. Flat cold rolled and annealed sheets were subjected to solutions of Capsicum annuum, L. esculentum, Allium cepa, and their blend under three conditions, namely, heating and cooling in still air, heating and cooling in refrigerator, and leaving some in open still atmosphere. Results show that corrosion occurred within the test period (288 hours) in the test environments. There was severe degradation within the first 70 hours of test when coupons were heated and cooled while unheated coupon showed low corrosion propensity. Microstructural analysis show the presence of corrosion pits on coupon surface with second phase particles sandwiched in α-aluminium matrix. Immersed coupon in the blend media show higher number of pits on the surface. Rapid corrosion of wrought aluminium alloy in Capsicum annuum, L. esculentum and Allium cepa media is attributed to the presence of corrosion aggressive elements such as allicin, diallyl-disulphide, and allyl-propyl disulphide present in the corrosion media.

scholarly journals Effect of intercropping chili (Capsicum annuum L.) with onion (Allium cepa L.) in sandy regosol

2012 ◽  
Vol 37 (3) ◽  
pp. 547-550 ◽  
Author(s):  
I Brintha ◽  
Thayamini H Seran
Keyword(s):  
Capsicum Annuum ◽  
Allium Cepa ◽  
Capsicum Annuum L ◽  
Allium Cepa L

Bangladesh J. Agril. Res. 37(3): 547-550, September 2012 DOI: http://dx.doi.org/10.3329/bjar.v37i3.12132

scholarly journals Research on the Corrosion Fatigue Property of 2524-T3 Aluminum Alloy

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1754
Author(s):  
Chi Liu ◽  
Liyong Ma ◽  
Ziyong Zhang ◽  
Zhuo Fu ◽  
Lijuan Liu
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Limit ◽  
Microstructural Analysis ◽  
Fatigue Property ◽  
Fatigue Tests ◽  
Second Phase ◽  
Principal Stress Direction ◽  
Second Phase Particles ◽  
Micro Holes ◽  
Corrosion Pits

The 2524-T3 aluminum alloy was subjected to fatigue tests under the conditions of R = 0, 3.5% NaCl corrosion solution, and the loading cycles of 106, and the S-N curve was obtained. The horizontal fatigue limit was 169 MPa, which is slightly higher than the longitudinal fatigue limit of 163 MPa. In addition, detailed microstructural analysis of the micro-morphological fatigue failure features was carried out. The influence mechanism of corrosion on the fatigue crack propagation of 2524-T3 aluminum alloy was discussed. The fatigue source characterized by cleavage and fracture mainly comes from corrosion pits, whose expansion direction is perpendicular to the principal stress direction. The stable propagation zone is characterized by strip fractures. The main feature of the fracture in the fracture zone is equiaxed dimples. The larger dimples are mixed with second-phase particles ranging in size from 1 to 5 μm. There is almost a one-to-one correspondence between the dimples and the second-phase particles. The fracture mechanism of 2524 alloy at this stage is transformed into a micro-holes connection mechanism, and the nucleation of micropores is mainly derived from the second-phase particles.

Pendugaan Parameter Genetik dan Seleksi Karakter Kuantitatif Cabai Rawit (Capsicum annuum L.) Populasi F3

2017 ◽  
Vol 5 (2) ◽  
pp. 213
Author(s):  
Abdul Rahman Fajar Sidiq ◽  
Muhamad Syukur ◽  
Siti Marwiyah
Keyword(s):  
Capsicum Annuum ◽  
Capsicum Annuum L

<em>Konsumsi cabai rawit terus meningkat namun produktivitasnya masih rendah, sehingga diperlukan pemuliaan yang mengarah pada perbaikan daya hasil. Penelitian ini bertujuan untuk menganalisis keragaman genetik, korelasi antar karakter, heritabilitas arti luas, dan nilai kemajuan seleksi populasi F3 cabai rawit. Penelitian ini dilaksanakan di Kebun Percobaan Leuwikopo, IPB, Dramaga, Bogor dan Laboratorium Genetika dan Pemuliaan Tanaman, Departemen Agronomi dan Hortikultura, IPB. Percobaan menggunakan 5 genotipe tetua dan 6 genotipe F3 cabai rawit, dengan genotipe tetua yang diulang sebanyak 3 ulangan dan genotipe F3 tanpa ulangan. Hasil penelitian menunjukkan bahwa karakter bobot buah per tanaman dan jumlah buah per tanaman memiliki keragaman genetik luas pada semua genotipe. Semua karakter pengamatan berkorelasi positif terhadap daya hasil kecuali umur berbunga dan umur panen. Nilai heritabilitas arti luas dengan kriteria tinggi terdapat pada karakter bobot buah per tanaman, bobot per buah, dan panjang buah. Hasil seleksi indeks yang dilakukan menunjukkan kemajuan seleksi yang besar pada karakter bobot buah per tanaman dan jumlah buah per tanaman.</em>

Sign in / Sign up

Export Citation Format

Share Document