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| 1 | Hybridizing micro-Ti with nano-B_(4)C particulates to improve the microstructural and mechanical characteristics of Mg-Ti composite显示文摘In this study,the effects of hybridizing micron-sized titanium particles with nano-sized boron carbide particles on the microstructural and mechanical properties of Mg-Ti composite were investigated.Microstructural characterization revealed grain refinement attributed to the presence of uniformly distributed micro-Ti particles embedded with nano-B_(4)C particulates.Electron back scattered diffraction(EBSD)analyses of the Mg-(Ti+B_(4)C)BM hybrid composite showed relatively more localized recrystallized grains and lesser tensile twin fraction,when compared to Mg-Ti.The evaluation of mechanical properties indicated that the best combination of strength and ductility was observed in the Mg-(Ti+B_(4)C)BM hybrid composite.The superior properties of the Mg-(Ti+B_(4)C)BM hybrid composite when compared to Mg-Ti can be attributed to the presence of nano-reinforcement,the uniform distribution of the hybridized particles and the better interfacial bonding between the matrix and the reinforcement particles achieved by nano-B_(4)C addition. | S.Sankaranarayanan S.Jayalakshmi M.Gupta | 2014 | Journal of Magnesium and Alloys2014，2，1： | 8 |
| 2 | Experimental and numerical analyses of magnesium alloy hot workability显示文摘Due to their hexagonal crystal structure,magnesium alloys have relatively low workability at room temperature.In this study,the hot workability behavior of cast-extruded AZ31B magnesium alloy is studied through hot compression testing,numerical modeling and microstructural analyses.Hot deformation tests are performed at temperatures of 250℃ to 400℃ under strain rates of 0.01 to 1.0 s^(−1).Transmission electron microscopy is used to reveal the presence of dynamic recrystallization(DRX),dynamic recovery(DRY),cracks and shear bands.To predict plastic instabilities during hot compression tests of AZ31B magnesium alloy,the authors use Johnson–Cook damage model in a 3D finite element simulation.The optimal hot workability of magnesium alloy is found at a temperature(T)of 400℃ and strain rate(ε)of 0.01 s^(−1).Stability is found at a lower strain rate,and instability is found at a higher strain rate. | F.Abbassi M.Srinivasan C.Loganathan R.Narayanasamy M.Gupta | 2016 | Journal of Magnesium and Alloys2016，4，4： | 5 |
| 3 | AZ31B镁合金及其纳米复合材料的滑动磨损行为(英文)显示文摘采用复合铸造工艺制备AZ31B镁合金及其纳米复合材料,再对所得材料在350°C进行热挤压。采用标准的销-盘式摩擦磨损试验机对AZ31B镁合金及其纳米复合材料的室温滑动磨损行为进行研究。实验条件为法向载荷10N、滑移速度0.60~1.2m/s、滑移距离2000m。采用SEM观察来研究磨损表面的磨损机理。通过构建一个线性回归模型来研究试验参数对磨销磨损率的影响。与AZ31B镁合金相比,由于增强体的作用而导致的硬度增强使复合材料表现出低的磨损率。犁削、犁沟、分层和氧化构成混合的磨损机理。 | M.SRINIVASAN C.LOGANATHAN M.KAMARAJ Q.B.NGUYEN M.GUPTA R.NARAYANASAMY | 2012 | Transactions of Nonferrous Metals Society of China2012，22，1： | 4 |
| 4 | 查看详情显示文摘 | J.W.Zheng S.M.L.Nai M.F.Ng P.Wu J.Wei and M.Gupta | | 0，，03： | 1 |
| 5 | 查看详情显示文摘 | M.Gupta S.Ling | | 0，，： | 1 |
| 6 | Quantitative determination of phyllanthin and hypophyllanthin in Phyllanthus species by high‐performance thin layer chromatography显示文摘 | Arvind K.Tripathi Ram K.Verma Anil K.Gupta Madan M.Gupta Suman P. S.Khanuja | 2006 | Phytochem Anal2006，，6： | 1 |
| 7 | Spatio-temporal fastICA algorithms for the blind separation of convolutive mixtures显示文摘 | S.C.Douglas M.Gupta Hiroshi Sawada | | 0，，05： | 1 |
| 8 | Magnesium alloys as extremely promising alternatives for temporary orthopedic implants-A review显示文摘Mg alloys are emerging as potential and very promising alternatives for replacing permanent metallic implant materials such as steels and titanium in applications where the implants need to be removed following healing through revision surgery.Use of Mg alloys for implant application is seen as a game changer and Mg alloys are almost perfect materials for the future in both engineering and biomedical applications.Present review therefore focuses on highlighting significance of Mg alloys in biomedical field and risks of using permanent metallic implants particularly when the implants are no longer required after the injury is healed.In this review,importance of orthopedic implants in present scenario,serious concern related to accidents that are causing permanent disabilities,demand in orthopedic implant market worldwide,potential applications of Mg based materials and their compatibility in biological environment is presented and discussed.In addition,degradation rate,major reactions associated with Mg based materials and effect of alloying elements on implant performance are also discussed based on in-vivo results.Recent advances in development of Mg alloys through various techniques and their performance in in-vitro conditions are also outlined.Possible ways to eliminate the limitations of Mg alloys include alloying,melt purification,surface alterations,surface modifications,chemical treatment,secondary processing etc.are discussed.Challenges and opportunities for Mg alloys to become ideal implant material is also addressed. | C.A.Niranjan T.Raghavendra Madhuri P.Rao C.Siddaraju M.Gupta Vikram Kumar S.Jain R.Aishwarya | 2023 | Journal of Magnesium and Alloys2023，11，8： | 0 |
| 9 | Effect of temperature and strain rate on compressive response of extruded magnesium nano-composite显示文摘The hot deformation behaviour of extruded magnesium-zinc oxide nano composite has been studied using hot compression test.The test was conducted in the temperature range of 250-400℃ and in the strain rate range of 0.01 to 1.5 s^(−1).The processing map was obtained using the power dissipation efficiency with the functions of temperature and strain rate.The workability and instability domains were observed in the processing map for a nano composite.The optical microscopy(OM),scanning electron microscopy(SEM)and transmission electron microscopy(TEM)images were used to confirm the formation of dynamic recrystallization(DRX),dynamic recovery(DRY)and instability regions.The workability region of the composite was identified at a working temperature of 400℃ and the strain rate of 0.01 s^(−1) from the processing map.The instability regions were observed at higher strain rates(>0.1 s^(−1))and temperatures(250-400℃). | B.Selvam P.Marimuthu R.Narayanasamy V.Senthilkumar K.S.Tun M.Gupta | 2015 | Journal of Magnesium and Alloys2015，3，3： | 0 |
| 10 | 蛋液加入淘汰羊肉和羊、鸡肉香肠中的试验显示文摘淘汰的畜禽(母鸡和母羊)的肉,由于胶元和交联组织增加,通常是坚韧和发干的。很多研究人员都在试验充分利用淘汰的畜禽及其副产品,生产肉糜或乳化型产品。但像羊脂那样的硬脂,在乳化时难于扩散以致口感很差。据Locker建议,老山羊的膻味可通过去除其内部脂肪而消除之。 | M.Gupta 张孝若 | 1993 | 肉类工业1993，，8： | 0 |
| 11 | Magnesium nanocomposites:An overview on time-dependent plastic(creep) deformation显示文摘Magnesium(Mg) nanocomposites are created when nano-size particles are embedded into the Mg(or Mg alloy) matrix. The Mg nanocomposites, cited as high-strength energy-saving materials of future, are a group of emerging materials with excellent combination of strength and ductility and superior specific strength property(strength-to-weight ratio). Having said this, Mg nanocomposites are considered as promising replacement for other structural alloys(i.e. aluminum and titanium) wherever low density and high strength are required, i.e. transportation, aerospace, defense, etc. To be able to apply this group of materials for real components, different failure mechanisms at ambient and elevated temperatures under static and dynamic loading condition must be well documented. Compared with other metals and alloys,rate-dependent plastic deformation(creep), at ambient and elevated temperatures, of these novel materials is not yet well studied which seems a tangible lack of knowledge. This is required since the materials in service are often exposed to medium and elevated temperatures and/or static loads for long duration of time and this encourages creep failure on them. To this end, the information and the controlling mechanisms on time/temperature-dependent response of the material need to be developed to be able to predict the response of the Mg nanocomposites where the materials are under creep conditions. This paper aims at providing an overview on(i) creep-resistant Mg alloys(as matrix) and their chemical compositions, and(ii) responses of the Mg nanocomposites at different creep conditions(time and temperature). The controlling mechanisms contributing to the strength and ductility of the Mg nanocomposites due to the presence of the nanoparticles have been reviewed briefly in the present article. In this paper both traditional(uniaxial) and depth-sensing indentation creep of Mg nanocomposites are reviewed. Also, some fundamental questions and possible explanations have been raised on the creep characteristics of Mg nanocomposites and the contribution of micro structural features(i.e.grain boundaries, twins, precipitates, nanoparticles). This overview article provides a comprehensive summary to understand one of the failure modes(creep) at ambient and elevated temperature in the energy saving Mg nanocomposites that would be of interest for those in academia who explore novel nanocomposites. | M.Haghshenas M.Gupta | 2019 | Defence Technology(防务技术)2019，15，2： | 0 |
| 12 | Warranty and Preventive Maintenance Analysis for Sustainable Reverse Supply Chains显示文摘In addition to being environmentally friendly,remanufactured products are popular with consumers because they offer the latest technology at a lower price,in comparison to brand new products.However,some consumers hesitate to buy remanufactured products because they are skeptical about their quality.Thus,they are unsure of the extent to which the product will render services when compared to a new product.A promotional marketing strategy employed by remanufacturers is to offer warranties for these products.To that end,this study scrutinizes the impact of offering non-renewing warranties on remanufactured products.Specifically,in this paper,a methodology is suggested,which simultaneously minimizes the cost incurred by the remanufacturers and maximizes consumer confidence toward buying remanufactured products.This study uses a discrete-event simulation to optimize the implementation of a two-dimensional non-renewing warranty policy for remanufactured products.The implementation is illustrated using a specific product recovery system called the Advanced Remanufacturing-To-Order system.The experiments in the study were designed using Taguchi’s Orthogonal Arrays to represent the entire domain of the recovery system to observe system behavior under various experimental conditions. | Ammar Y.Alqahtani Surendra M.Gupta | 2017 | Journal of Management Science and Engineering2017，2，1： | 0 |
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