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Effect of Solution Treatment on Microstructures and Hardness of Mg-Gd-Y-Zr Alloy Quan-an LI1,2,a, Lei-lei CHEN1,b, Wen-chuang LIU1, Xing-yuan ZHANG1 and Hui-zhen JIANG1 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China 2Collaborative Innovation Center of Nonferrous Metals, Henan Province, Luoyang, 471023, China aemail:q-ali@163.com, bemail: cll19880623@163.com Keywords: Mg-Gd-Y-Zr alloy, solution treatment, microstructures, Vickers hardness.
Introduction Recently, there have been constantly increasing uses of light-weight and high-strength materials as structural materials in engineering applications such as automobile industry, 3C (Computer, Communication, Consumer Electronic) and electron industry [1,2].
Before the melting started, all the materials should be dried at 200°C for 1-2 hours.
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[7] Yan Gao, Qudong Wang, Jinhai Gu, Yang Zhao and Yan Tong, Behavior of Mg–15Gd–5Y–0.5Zr alloy during solution heat treatment from 500 to 540 °C, Materials Science and Engineering A. (459) 2007 117-123

Wastage of material in Rapid Prototyping is very less.
Rapid Prototyping uses materials economically.
Conventional processes involve material removal processes, in which the final shape of product is obtained by machining of excess material, which leads to wastage of material, hence increasing the cost.
Science Journal of Clinical Medicine. 
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Through the material kinematics simulation in processing, both the component kinematics simulation and the system dynamic simulation of the agricultural machinery, a specific application of the simulation technology in the agriculture machinery design was displayed.
When the mass of the straws collected in bin is over the designed value, the hook will be out of a stock, and the door can smoothly open, so the materials will be discharged, and the door will close automatically by pulling force of the springs[6].
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Tap life is compared with cutting different materials when cryogenic treatment is appointed before or after temper or process is normal.
Table 3 Cutting parameters and ground blunt standard Material Taps pitch speed Wear value Chipping value M/(mm) n/(mm/r) VB/（mm） CH/(mm) 30CrMnTi 24 100 0.6 1.2 5CrMnMo 24 100 0.6 1.2 1Cr18Ni9Ti 24 63 0.6 1.2 Test process: 6 cutting test pointed are established for 3 kinds of materials.
This work is supported by Shanxi natural science foundation (No.2007031021) References [1] M.Q.
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Study on Dynamic Mechanical Response of TC21 Alloy Shuangzan Zhao1, Xingwang Cheng1, a, Fuchi Wang1 1 School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China achengxw@bit.edu.cn Keywords: TC21 alloy; heat treatment; SHPB; flow stress; adiabatic shear band Abstract: Some results of an experimental study on high strain rate deformation of TC21 alloy are discussed in this paper.
Experimental Procedures The TC21 alloy bars used in this experiment were provide by Beijing Aviation Materials Research Institute.
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Compounds of monoterpene and diterpene which have aroma and physiological activity widely exist in the secreted organization of higher plants, they are important materials in medicine and industrial of cosmetic.
The cost of raw materials of steroids by fungal humification may get well below that extracted from plant[13].
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Due to the high costs and problems associated with corrosion-resistant materials, the use of corrosion inhibitors is a realistic and cost-effective alternative which can be designed-in.
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Nuntiya, Preparation of Nanosilica Powder from Rice HuskAsh by Precipitation Method, Chiang Mai Journal Science 35 (2010): 206-211
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Workpiece Materials AbrasivesofTools Removing material Solid-statereaction Soft passive film Mechanicalaction Fig. 1.Thematerial removal process of Al2O3 ceramic machined by CMG tools Preparation of CMG tools The CMG grinding tool is made of abrasive, bond, additives and pore.
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