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| 1 | Spark plasma and microwave sintering of Al6061 and Al2124 alloys显示文摘Despite the importance of aluminum alloys as candidate materials for applications in aerospace and automotive industries,very little work has been published on spark plasma and microwave processing of aluminum alloys.In the present work,the possibility was explored to process Al2124 and Al6061 alloys by spark plasma and microwave sintering techniques,and the microstructures and properties were compared.The alloys were sintered for 20 min at 400,450,and 500oC.It is found that compared to microwave sintering,spark plasma sintering is an effective way to obtain homogenous,dense,and hard alloys.Fully dense(100%) Al6061 and Al2124 alloys were obtained by spark plasma sintering for 20 min at 450 and 500oC,respectively.Maximum relative densities were achieved for Al6061(92.52%) and Al2124(93.52%) alloys by microwave sintering at 500oC for 20 min.The Vickers microhardness of spark plasma sintered samples increases with the increase of sintering temperature from 400 to 500oC,and reaches the values of Hv 70.16 and Hv 117.10 for Al6061 and Al2124 alloys,respectively.For microwave sintered samples,the microhardness increases with the increase of sintering temperature from 400 to 450oC,and then decreases with the further increase of sintering temperature to 500oC. | Nouari Saheb1 | 2013 | International Journal of Minerals,Metallurgy and Materials2013，20，2： | 3 |
| 2 | Wear characteristics and performance of multi-layer CVD-coated alloyed carbide tool in dry end milling of titanium alloy显示文摘 | Nouari M Ginling A | | 0，，： | 2 |
| 3 | Ecologic study of serum selenium and upper gastrointestinal cancers in Iran显示文摘AIM: Both observational and experimental studies have shown that higher selenium status reduces the risk of upper gastrointestinal cancers in selenium deficient populations.Recent cancer registry data have shown very different rates of esophageal cancer (EC) and gastric cancer (GC) in four Provinces of Iran, namely Ardabil, Mazandaran, Golestan,and Kerman. The aim of this study was to have a preliminary assessment of the hypothesis that high rates of EC in Golestan and high rates of GC in Ardabil may be partly attributable to selenium deficiency.METHODS: We measured serum selenium in 300 healthy adults from ArdabU (n = 100), Mazandaran (n = 50), Golestan (n = 100), and Kerman (n = 50), using inductively coupled plasma, with dynamic reaction cell, mass spectrometry (ICP-DRC-MS) at the US Centers for Disease Control (Atlanta,Georgia).RESULTS: The median serum selenium concentrations were very different in the four Provinces. The medians (IQR) for selenium in Ardabil, Mazandarn, Golestan, and Kerman were 82 (75-94), 123 (111-132), 155 (141-173), and 119 (110-128) μg/L, respectively (P<0.001). The results of linear regression showed that the Province variable, by itself,explained 76% of the variance in log selenium (r^2 = 0.76).The proportion of the populations with a serum selenium more than 90μg/L (the concentration at which serum selenoproteins are saturated) was 100% in Golestan,Kerman, and Mazandaran but only 29% in ArdabU.CONCLUSION: Our findings suggest nat selenium defidency is not a major contributor to the high incidence of EC seen in northeastern Iran, but it may play a role in the high incidence of GC in Ardabil Province. | Mehdi Nouarie Akram Pourshams Farin Kamangar Masood Sotoudeh Mohammad Hossein Derakhshan Mobammad Reza Akbari Hafez Fakheri Mohammad Javad Zahedi Kathleen Caldwell Christian C.Abnet Philip R.Taylor Reza Malekzadeh Sanford M.Dawsey | 2004 | World Journal of Gastroenterology2004，10，17： | 2 |
| 4 | Experimental verification of a diffusion tool wear model using a 42CrMo4 steel with an uncoated cemented tungsten carbide at various cutting speeds 显示文摘 | Nouari M Molinari A | 2005 | Wear2005，259，712： | 1 |
| 5 | The effect of thermal property degradation on wear of WC-Co inserts in dry cutting显示文摘 | ABDEL-AAL H A NOUARI M MANSORI M E | 2008 | Wear2008，265，： | 1 |
| 6 | Modeling of Tool Wear by Diffusion in Metal Cutting 显示文摘 | Molinari A Nouari M | 2002 | Wear2002，252，12： | 1 |
| 7 | Experimental analysis and optimisation of tool wear in dry machining of aluminium alloys显示文摘 | M. Nouari G. List F. Girot D. Coupard | 2003 | Wear2003，，7： | 1 |
| 8 | Modeling of tool wear by diffusion in metal cutting显示文摘 | Molinari A Nouari M | 2002 | Wear2002，252，1： | 1 |
| 9 | Wear characteristics and perform-ance of multi-layer CVD-coated alloyed carbide tool in dry endmilling of titanium alloy显示文摘 | NOUARI M GINTING A | 2006 | Surface and Coatings Technology2006，200，： | 1 |
| 10 | Modeling of tool wear by diffusion in metal cutting显示文摘 | M Nouari Molinari | 2002 | Wear2002，252，： | 1 |
| 11 | Damage modes of the aeronautic multidireetional carbon/epoxy composite T300/914 in machining 显示文摘 | Iliescu D G:hin D Nouari M | 2008 | International Journal of Materials and Product Technology2008，32，23： | 1 |
| 12 | The effect of the thermal property degradation on wear of WC-Co inserts in dry cutting显示文摘 | Abdel-Aal H A Nouari M Mansori M E | 2008 | Wear2008，265，： | 1 |
| 13 | Tribological behaviour and tool wear analyses in rough turning of large- scale parts of nuclear power plants using grooved coated in- sert显示文摘 | HADDAG B MAKICH H NOUARI M | 2014 | Tribalogy International2014，80，6： | 1 |
| 14 | Surface integrity of dry ma- chined titanium alloys显示文摘 | Ginting A Nouari M | 2009 | International Journal of Machine Tools and Manufacture2009，49，34： | 1 |
| 15 | Experimental analysis and optimization of tool wear in dry machining of aluminium alloys显示文摘 | Nouari M List G Girot F | 2003 | 14th International Conference on Wear of Materials2003，255，712： | 1 |
| 16 | Wear characteristics and performance of multi-layer CVD-coated alloyed carbide tool in dry end milling of titanium alloy 显示文摘 | Nouari M Ginting A | 2006 | Surface and Coatings Technology2006，200，： | 1 |
| 17 | Tfibo-energetic cor- relation of tool thermal properties to wear of WC-Co inserts in high speed dry machining of aeronautical grade titanium alloys 显示文摘 | Abdel-Aal H A Nouari M El Mansoric M | 2009 | Wear2009，266，34： | 1 |
| 18 | Wear characteristics and performance of multi-layer CVD-coated alloyed carbide tool in dry end milling of titanium alloy 显示文摘 | Nouari M Ginting A | 2006 | Surface & Coatings Technology2006，200，1819： | 1 |
| 19 | Modeling of tool wear by diffusion in me tal cutting显示文摘 | Molinari A Nouari M | 2002 | Wear2002，252，12： | 1 |
| 20 | Surface integrity of dry machined titanium alloys 显示文摘 | Ginting A Nouari M | 2009 | International Journal Machine Tools Manufacture2009，49，34： | 1 |
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