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Articles by L. ALI
Total Records ( 2 ) for L. ALI
  K. Abdalwahid , Rajih Enass and L. Ali
  (Al-Li) alloys contain certain alloying elements exhibit high elastic modulus, high strength and low density. These properties are main requirements in aerospace industries. These alloys are subjected to corrosion and corrosion/erosion during the application. The corrosion behavior was investigation on a function of alloying elements and corrosion medium. Tafel technique was adopted to record the corrosion current. Corrosion/erosion were determined by suitable equipment. Results obtained showed that tests conducted in tap water showed that corrosion current of Al-Li-Cu was 7% of the corresponding value of the reference alloy (Al-Li). In H2SO4, however, it was 14% with respect to the base alloy. For (Al-Li-Cu-Mg) alloy the corrosion current in tap water was only 2.5% with respect to the base alloy (Al-Li). In H2SO4 the corrosion current was 67% with respect to the base alloy. In corrosion/erosion test, the weight (loss/area) the base metal (Al-Li) was 4.4*10–6 g/mm2. For (Al-Li-Cu) alloy it was only 0.95*10–6 g/mm2 while (Al-Li-Cu-Mg) alloy gives 1.95*10–6 g/mm2.
  Screening cultivars to grow under conditions of low phosphorus (P) availability and utilize P efficiently from compounds of low solubility in soils may be beneficial to overcome poor plant growth in P-deficient soils. The growth behavior and P utilization efficiency of seven wheat cultivars grown in hydroponics were studied, using rock phosphate as P source. The wheat cultivars grown for 30 days were significantly different in biomass accumulation, P uptake and P utilization efficiency. The dry matter production of all the cultivars was significantly correlated with P uptake, which in turn correlated to the drop in the root medium pH. The ranking of wheat cultivars on the basis of dry matter yield, P uptake and P utilization efficiency was Zamindar 80 > Yecora > C 271 > WL 711 > Barani 83 > PARI 73 > Rohtas. The cultivar Zamindar 80 appeared to possess the best growth potential in P-deficient soils.
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