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| 1 | Improvement in Mechanical Properties of Microalloyed Steel 30MSV6 by a Precipitation Hardening Process显示文摘The microstructural evolutions and mechanical properties of vanadium microalloyed steel (30MSV6) during precipitation hardening were studied. The effects of aging temperature and cooling rate on mechanical strength (yield strength and ultimate tensile strength) were similar. Increasing aging temperature or cooling rate firstly increased the mechanical strength of specimens up to their maximum values, which then decreased with further increase in aging temperature or cooling rate. Microstructural evolutions revealed that cooling rate had significant effects on the pearlite interlamellar spacing and size of pre-eutectoid ferrite. Unlike the effect of austenitizing temperature, the pearlite interlamellar spacing and pre-eutectoid ferrite size were decreased by increasing the cooling rate from austenitizing temperature. According to the microstructural evolutions and mechanical properties, the optimal heat treatment process of microalloyed steel 30MSV6 was austenitizing at 950 ℃ for 1 h, air cooling (3.8 ℃/s) and aging at 600 ℃ for 1.5 h. This optimal heat treatment process resulted in a good combination of elongation and yield strength. | M Hajisafari S Nategh H Yoozbashizadeh A Ekrami | 2013 | Journal of Iron and Steel Research(International)2013，20，5： | 6 |
| 2 | Effect of deep cryogenic treatment on the properties of 80CrMo12 5 tool steel显示文摘The effect of deep cryogenic treatment on the mechanical properties of 80CrMo12 5 tool steel was investigated. Moreover, the effects of stabilization (holding at room temperature for some periods before deep cryogenic treatment) and tempering before deep cryogenic treatment were studied. The results show that deep cryogenic treatment can eliminate the retained austenite, making a better carbide distribution and a higher carbide amount. As a result, a remarkable improvement in wear resistance of cryogenically treated specimens is observed. Moreover, the ultimate tensile strength increases, and the toughness of the sample decreases. It is also found that both stabilization and tempering before deep cryogenic treatment decrease the wear resistance, hardness, and carbides homogeneity compared to the deep cryogenically treated samples. It is concluded that deep cryogenic treatment should be performed without any delay on samples after quenching to reach the highest wear resistance and hardness. | Kamran Amini Said Nategh Ali Shafyei Ahmad Rezaeian | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，1： | 2 |
| 3 | Dislocation network formation during creep in Ni-base superalloy GTD-111显示文摘 | NATEGH S SAJJADI S A | | 0，，1： | 1 |
| 4 | Influence of different cryotreatments on tribological behavior of 80CrMo12 5 cold work tool steel显示文摘 | Amini K Nategh S Shafyei A | 2010 | Materials and Design2010，31，： | 1 |
| 5 | Microstructure evolution and its influence on deformation mechanisms during high temperature creep of a nickel base superalloy 显示文摘 | Javad Safari Saeed Nategh | 2009 | Materials Science and Engineering A2009，，499： | 1 |
| 6 | A high temperature deformation mechanism map for the high performance Ni-base superaUoyGTD-I 11 显示文摘 | Sajjadi S A Nategh S | 2001 | Materials Science and Engineering2001，307，： | 1 |
| 7 | On the heat treatment of Rene-80 nickel-base superalloy显示文摘 | SAFARI J NATEGH S | 2006 | Journal of Materials Processing Technology2006，176，： | 1 |
| 8 | Identifying the kinematic parameters of hexapod machine tool显示文摘 | AGHELI M M NATEGH M J | 2009 | World Academy of Science Engineering and Technology2009，52，： | 1 |
| 9 | Direct identification of non-polio enteroviruses in residual paralysis cases by analysis of VP 1 sequences显示文摘 | Pooneh Rahimi H. Tabatabaie Mohammad M. Gouya M. Mahmudi T. Musavi K. Samimi Rad T. Mokhtari Azad R. Nategh | 2009 | Journal of Clinical Virology2009，，： | 1 |
| 10 | A total solution to kinematic calibration of hexapod machine tools with a minimum number of measurement configurations and superior accuracies显示文摘 | NATEGH M J AGHELI M M | 2009 | International Journal of Machine Tools & Manufacture2009，49，15： | 1 |
| 11 | On the heat treatment of Rene - 80 nickel-base superalloy显示文摘 | Safari J Nategh S | 2006 | Journal of Materials Processing Technology2006，176，13： | 1 |
| 12 | A high temperature deformation mechanism map for the high performance Ni-base superalloy GTD-111显示文摘 | SAJJADI S A NATEGH S | 2001 | Materials Science and Engineering A2001，307，： | 1 |
| 13 | Tensile deformationmechanisms at different temperature in the Ni-base superalloyGTD-111显示文摘 | Sajjadi S A Nategh S Isac I | 2004 | Journal of Materials Processing Technology2004，，： | 1 |
| 14 | Lavender aromatherapy on anxiety and depression in patients with Acute Coronary Syndrome: a single-blind randomized clinical trial显示文摘Objective:In cardiovascular disease,a patient’s anxiety and depression can increase cardiac rehabilitation duration and recovery.Lavender aromatherapy as a non-pharmacological intervention effective in other contexts may be an efficient intervention to alleviating anxiety and depression in patients with Acute Coronary Syndrome(ACS).Methods:In this study,110 ACS patients were randomly assigned to two intervention and control groups.Inhalation of the lavender fragrance was prescribed for the intervention group and the drop of aromatic almond for the control group for 3 days.Results:The first-day anxiety and depression were significantly different in the two groups at 1 h and 9 h after the intervention.The’morning’s difference before the intervention was not significant,but it was substantial 1 h after the intervention.On the third morning of the intervention,this difference was confirmed.Conclusions:This study confirmed the effectiveness of lavender aromatherapy in reducing anxiety and depression in ACS patients.This’study’s results enable intensive care nurses to use aromatherapy with lavender oil as a non-pharmacological and cost-effective intervention to reduce their psychological tensions and increase patient satisfaction during hospitalization in the cardiac care units(CCU). | Mohammad Nategh Mohammad Reza Heidari Abbas Ebadi Reza Norouzadeh Zahra Mohebbinia Bahman Aghaie | 2022 | Frontiers of Nursing2022，9，2： | 1 |
| 15 | Thermal analysis of a PMaSRM using partial FEA and lumped parameter modeling 显示文摘 | NATEGH S WALLMARK O LEKSELL M | 2012 | IEEE Transactions on Energy Conversion2012，27，2： | 1 |
| 16 | Analytical modeling and experimental investigation of uhrasonic-vibration assisted oblique turning, part I: Kinematics analysis显示文摘 | NATEGH M J RAZAVI H ABDULLAH A | 2012 | International Journal of Mechanical Sciences2012，63，1： | 1 |
| 17 | Ultrasonic predictors of improved seminal parameters after bilateral laparoscopic varicocelectomy显示文摘 | Mehraban D Taghdiri M Nategh S | 2012 | Int Urol Nephrol2012，44，4： | 1 |
| 18 | A high temperature deformation mechanism map for the high performance Ni-base superalloy GTD-111 显示文摘 | Sajjadi S A Nategh S | 2001 | Mater Sci Eng2001，307，： | 1 |
| 19 | On the heat treatment of Rene-80 nickel-base superalloy 显示文摘 | Safari J Nategh S | 2006 | Journal of Materials Processing Technology2006，176，13： | 1 |
| 20 | Study of microstructure and mechanical properties of high performance Ni-base superalloy GTD-I 11 显示文摘 | SAJJADI S A NATEGH S GUTHRIE R I L | 2002 | Materials Science and Engineering A2002，325，： | 1 |
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