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| 1 | Structural and Mechanical Properties of Al/B_4C Composites Fabricated by Wet Attrition Milling and Hot Extrusion显示文摘In this study,Al matrix composites reinforced by 7.5 and 15 vol.%B4C particles and also monolithic Al(Al without the B4C particles) were produced by wet attrition milling and subsequent hot forward extrusion processes.The microstructure of the composites,evaluated by scanning electron microscopy(SEM),showed that the B4C particles were properly distributed in the Al matrix.Mechanical properties of the AI/B4C composites and monolithic Al were investigated by tensile,wear and hardness tests.The results revealed that with increasing content of B4C particles,the tensile strength and microhardness of composites increased but the elongation decreased.In addition,the tensile strength and microhardness of composite samples were higher than those of monolithic Al.The density measurements revealed that the density of composites decreased with increasing content of the B4C particles. | Morteza Alizadeh Mostafa Alizadeh Rasool Amini | 2013 | Journal of Materials Science & Technology2013，29，8： | 2 |
| 2 | New analytical model for local heat flux density in the mold in continuous casting of steel 显示文摘 | Mostafa Alizadeh Ahmad Jenabali Jahromi Omid Abouali | 2008 | Computational Materials Science2008，，44： | 1 |
| 3 | The influence of microstructure on the protective properties of the corrosion product layer generated on the welded API X70 steel in chloride solution显示文摘 | Mostafa Alizadeh Sajjad Bordbar | 2013 | Corrosion Science2013，，： | 1 |
| 4 | Effects of microstructure alteration on corrosion behavior of welded joint in API X70 pipeline steel显示文摘 | Sajjad Bordbar Mostafa Alizadeh Sayyed Hojjat Hashemi | 2013 | Materials and Design2013，，： | 1 |
| 5 | A review on metastatic breast cancer in Iran显示文摘Metastatic breast cancer is a disease of early breast cancer that usually occurs several years after the early breast cancer. Breast cancer is the most common cancer among Iranian women. According to the new statistics in Iran 6 160 breast cancers are diagnosed in the country each year and 1 063 cases lead to death. In this paper, epidemiology, diagnosis and treatment have been investigated. In this study, case-control clinical trials and open studies with adequate data were collected. Due to the higher risk of age group 40-49 years and the advent of advanced breast cancer in Iranian women, the early diagnosis and determination of the exact size of the tumor before surgery is important in choosing a therapy plan. The decision on the therapy of invasive breast cancer depends on several factors such as cancer stage, tumor size and type, pathological and cytological status of the tumor, the patient's opinion, the presence or absence of estrogen and progesterone receptors in the cytoplasm of tumor cells and so on. | Hamidreza Alizadeh Otaghvar Mostafa Hosseini Adnan Tizmaghz Ghazaal Shabestanipour Hamid Noori | 2015 | Asian Pacific Journal of Tropical Biomedicine2015，5，6： | 0 |
| 6 | Microstructure Modification of Powder Compact of Al-Zn-Mg Nanostructured Alloy by a Semisolid Thermomechanical Processing显示文摘A thermomechanical process(TMP) consisting of three cycles of cold pressing at 154 MPa and liquid-phase sintering at 600 ℃ for 30 min in each cycle was applied to modify the microstructure of nanostructured Al-Zn-Mg alloy.The alloy powders were produced by mechanical alloying.Also,solid-state sintering at 550 ℃ for 90 min was done to compare the results with those obtained from the TMP.The powders and the thermomechanically(TM) processed samples were analyzed by XRD to reveal the present phases in addition to calculating the crystallite size changes by the Williamson-Hall method.Moreover,scanning electron microscope was employed to observe the morphology of the powder and the microstructures of the sintered and the TM processed samples.The results revealed that the TMP affected the microstructure noticeably as well as the microhardness by removing the continuous grain boundary porosities and uniform distribution of the intermetallic phase particles as well as obtaining a near globular microstructure after the second cycle.Also,the average grain sizes in the first and the second cycles of the TMP were lower than those of the sintered sample.Furthermore,nanocrystalline grains were stable up to the second cycle of the TMP. | Mohsen Hajizamani Mostafa Alizadeh Seyed Ahmad Jenabali-Jahromi | 2016 | Acta Metallurgica Sinica(English Letters)2016，29，1： | 0 |
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