|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | X-ray analysis of twin dominated deformation in an aged Mg-7Sn-3Zn-0.04Na alloy显示文摘In-situ transmission X-ray diffraction based compression deformation experiments are performed to study the twinning behaviour in asextruded(non-aged)and peak-aged Mg-7Sn-3Zn-0.04Na alloy.The axial lattice strains were measured in the parent grains,twins and the precipitates as a function of applied stress.The critical shear stress for achieving 5%twinning was found to be increased by∼26MPa by the presence of 7%of Sn and by∼50MPa by the presence of the particles formed after 10 h of aging.The evolution of twin volume fraction with plastic strain is similar in both non-aged and aged conditions,indicating no change in the relative activities of slip and twin in the ideally oriented(10.10)parent grains.Predictions made in previous studies of twin thickening stresses and twin bypass stresses agree reasonably well with the measured values,given the experimental error.Considerable relaxation was seen in the precipitate lattice reflections.This is attributed to relaxation effects continuing during X-ray data collection.Macroscopic flow curves confirm that precipitate hardening in the present system is particularly sensitive to relaxation effects.This is likely to be an important consideration for fatigue loading of precipitate hardened samples. | Ehsan Bahrami Motlagh Peter ALynch Thomas Dorin Pavel Cizek Alireza Ghaderi Matthew RBarnett Sitarama R.Kada | 2021 | Journal of Magnesium and Alloys2021，9，4： | 2 |
| 2 | In silico ADME modelling: prediction models for blood-brain barrier permeation using a systematic variable selection method显示文摘 | RAMAMURTHI N SITARAMA B G | 2005 | Bioorg Med Chem2005，13，8： | 1 |
| 3 | Effect of plastic deformation on microstructure and thermoelectric properties of Mg_(2)Sn alloys显示文摘In the present work,the effect of deformation on microstructure and thermoelectric properties of Mg 2 Sn alloys having excess magnesium concentrations is examined.The cast alloys were prepared using radio-frequency(RF)induction melting under an argon atmosphere.These alloys were thermo-mechanically processed via compression at different temperatures to various true strains.At room temperature,the alloys failed at a true strain of∼13%.However,at elevated temperatures,the alloys were observed to be highly plastic.For alloys compressed at 673 K to a true strain of 1,a prominent substructure formed.The subgrain size was∼3-5μm.It is believed that the substructure arose from the action of dynamic recovery.Following deformation,the thermoelectric performance of alloy prepared with 6.7 wt.%excess Mg was improved compared to the as cast condition.This can be ascribed to a reduction in the thermal conductivity due to phonon scattering at grain boundaries. | Rameshkumar Varma Sitarama Kada Matthew Barnett | 2021 | Journal of Magnesium and Alloys2021，9，1： | 1 |
| 4 | High strength and ductile ultrafine-grained Cu–Ag alloy through bimodal grain size, dislocation density and solute distribution显示文摘 | K. Sitarama Raju V. Subramanya Sarma A. Kauffmann Z. Heged?s J. Gubicza M. Peterlechner J. Freudenberger G. Wilde | 2013 | Acta Materialia2013，，1： | 1 |
| 5 | 掺混高炉煤气的焦炉煤气输送管道中的沉积物显示文摘 | Jayanti Ventata Sitarama Murty 何家梅 | 2002 | 燃料与化工2002，33，2： | 1 |
| 6 | Grain size and grain boundary character distribution in ultra-fine grained (ECAP) nickel 显示文摘 | Sitarama Raju K Ghanashyam Krishna M Padmanabhan K A | 2008 | Materials Science and Engineering2008，491，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员