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During hot forming, the tool materials are subjected to high mechanical, thermal, tribological and chemical stresses resulting in a complex load spectrum [1].
Monti, Thermo-mechanical fatigue life assessment of hot forging die steel, Fatigue & Fracture of Engineering Materials & Structures, Vol. 28(11), 2005, pp. 1025-1034
Seifert, Temperature dependent cyclic mechanical properties of a hot work steel after time and temperature dependent softening, Materials Science & Engineering A, Vol. 721, 2018, pp. 96-102
Hervy, Influence of design and process parameters on service life of nut hot forging die, Journal of Materials Processing Technology, Vol. 147, 2004, pp. 359-369
Advanced Materials Research, Vol. 223, 2011, pp. 212-221

In Situ Laser Synthesis of High Entropy Alloy Coating on Ti-6Al-4V Alloy: Characterization of Microstructure and Properties Zhaobing Cai1, Xuejia Pang2, Xiufang Cui1,a, Xin Wen1, Zhe Liu1, Meiling Dong1, Yang Li1, and Guo Jin1,b 1Institute of Surface/Interface Science and Technology, Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China 2The 703 Research Institute of CSIC, Harbin 150078, China acuixf721@163.com, bjinjg721@163.com Keywords: Laser cladding, In Situ, High-entropy alloy coating, EPMA; properties characterization.
Laser cladding, as a modern technology of surface treatment, has been widely applied to improve the surface properties of materials.
Been prepared on the basis of above, HEAs are also considered optional coating materials and so many researches about HEA coating are being studied [9-21].
But for inactive materials, like titanium alloy and stainless steel, the range of passive region (the wider the passive region, the better corrosion resistance) should be taken into account firstly.
Acknowledgement This work was financially supported by National Natural Science Foundation of China (No. 51575118) and International Exchange Program of Harbin Engineering University For Innovation-oriented Talents Cultivation.

Flexural Behavior of Prestressed UHPC Beams Jian Yang 1, a, zhi Fang 2,b and Gong-lian Dai 1,c 1 School of Civil Engineering and Architecture, Central South University, China 2 School of Civil Engineering, Hunan University, China aJianyangyy@126.com, bFangzhi@hnu.cn, cdaigong@vip.Sina.com Key words: UHPC, Prestress, Beam, Flexural, Ductility.
Constituent materials of UHPC.
The material properties of UHPC are shown in Table 3. fe is the effective prestressing force after releasing jacking load.
A.Graybeal: ACI Material Journal, Vol.104,(2007), p. 146
Pei: Journal of materials in civil Engineering, ASCE., Vol 10 ( 1998),P.86 [10] ACI Committee 318.

Only the concave parabolic surface has optical precision; dimensions of all other parts have civil or mechanical engineering finishing.
Steam turbine + Generator + Peripheric turn key [USD 1000] 1900 4390 6.
Mahadevappa, Strength of Materials, third ed., CRC, New York, 2010
Mattos, Cylindrical parabolic solar collector analysis, optimization, and performance evaluation, Dissertation (Master degree on Mechanical Engineering), (2011), Guaratinguetá Engineering College, Guaratinguetá, 108 p
Levenspiel, Engineering Flow and Heat Exchange, Plenum, New York, 1984

Deformation Behavior of Semi-Solid ZCuSn10P1 Copper Alloy During Isothermal Compression Jia WANG1, 2, a, Rongfeng ZHOU1, 3,b, Han XIAO1, c, Dehong LU1, d, Lu LI1, e, Dan BAI1, f 1 College of Materials Science and Engineering, Kunming University of Science and Technology, Yunnan Kunming, 650093, China 2 College of Mechanical Engineering, Sichuan University of Science & Engineering, Sichuan Zigong, 643000, China 3 Research Center for Analysis and Measurement, Kunming University of Science and Technology, Yunnan Kunming, 650039, China awangjiayuting@163.com, bzhourfchina@hotmail.com, czztixh@163.com, dldhongkust@126.com, elilukust@126.com, f13759170119@163.com Keywords: ZCuSn10P1 copper alloy, semi-solid, isothermal compression, deformation behavior Abstract.
Introduction Semi-solid metal forming is an advanced metal forming technology of the 21st century in the field of materials forming.
Experiment Material and Methods Experiment Material.
The experimental material is ZCuSn10P1 alloy, the chemical composition as follows (mass fraction, %): 88.25Cu, 10.48Sn, 1.27P.
Acknowledgements The work has been supported by Applied Basic Research Key Project of Yunnan Province in China (Grant No. 2011FA007), Specialized Research Fund for Doctoral Program of Higher Education (Grant No. 20125314120013), Scientific Research Fund of Yunnan Provincial Education Department in China (Grant No. 2012Y543) and Development Research Fund from Sichuan University of Science and Engineering (Grant No. 2013PY05).

The results show that the Kosteletzkya virginica bast fiber is an appropriate candidate for the new textiles materials which can grow in the brackish portions of coastal tidal marshes.
Experimental section Materials The Kosteletzkya virginica bast fibers (obtained from biotechnology institute of Nanjing University, China), castor-oil plant and cotton fibers (purchased from the market, China), were used for this study.
The other non-cellulose materials (such as pectin, fats and aqueous extract) were removed from the fibers by treating with sodium hydroxide at boil, and the conditions used in this study to obtain fibers were expected to remove most of the pectin.
This was due to removal of amorphous materials like hemicellulose, lignin and some other non-cellulose materials during the degumming process.
As the temperature was increased the mass remained constant until 252 ℃, the temperature which corresponds to the beginning of the thermal degradation (Td), which was due to the thermal depolymerization of non-cellulose materials [20].

Mechanical and Industrial Engineering - University of Brescia - Italy 2 Dept. of Design and Technologies - University of Bergamo - Italy a aldo.attanasio@unibs.it, belisabetta.ceretti@unibs.it, cantonio.fiorentino@unibs.it, d luca.mazzoni@unibs.it, eclaudio.giardini@unibg.it Keywords: Sheet, Incremental Forming, Feasibility, Formability, Forces.
TPIF requires the realization of a complete or partial die, which can be made of materials easily workable on the same CNC machine used for ISF, like: resin, wood, aluminum.
This can be explained considering that closer passes, in other words lower ∆θ, affect a lower material volume and give rise to a more gradual deformation increment, improving the material ability in deforming without rupture.
Next studies will be oriented on testing different sheet materials and the differences between positive and negative die incremental forming processes.
Tekkaya: The increased forming limits of incremental sheet forming processes, Key Engineering Materials Vol. 344 (2007), pp. 621-628

Vasanthakumarb Department of Mechanical Engineering, National Institute of Technology Calicut, NIT Campus Calicut - 673601, Kerala, India *Corresponding author: asekar@nitc.ac.in, bvasanthakumarp76@gmail.com Keyword: Friction stir welding, dissimilar aluminium alloys, AA7075 and AA2014, RSM.
It is always necessary to conduct a simulation rather than directly starting with experiment to avoid with waste of materials and to save time.
Cb, “Friction stir Welding for the transportation industries,” Materials & Design, vol. 18, 1998, pp. 269–273
Shibayanagi, “Friction stir welding of dissimilar AA2024 and AA7075 aluminum alloys,” Materials Science and Engineering B, vol. 148, 2008, pp. 82–87
Key Engineering Materials, vol. 934 KEM, pp.129-138, 2022

The cutting temperature is measured using tool-work thermocouple designed, fabricated and calibrated in the Mechanical Engineering lab, AMU, ALIGARH [4].
The grey relational grade is defined as follows: γi =i(k) (6) However, in a real engineering system, the importance of various factors to the system varies.
Acknowledgment The authors would like to express their deep gratitude to the department of mechanical Engineering of Aligarh Muslim University (AMU) for providing the laboratory facilities and financial support.
,Stephenson, “Tool-work Thermocouple Temperature measurement –Theory an implementation”, Transactions of ASME-Journal of engineering for industry, Vol. 115, 432-437,1992
Hameedullah, “Control of chip-tool interface temperature for improved productivity through a new lubricating technique”, International Journal of Applied Engineering Research,Vol. 5, No.-14-2010, pp.2373-2382 [5] D.

All the middle ear structural materials were considered to be homogeneous and isotropic.
Dyer Jr, et al., An advanced computer-aided geometric modeling and fabrication method for human middle ear, Medical engineering & physics.24(9) (2002) 595-606
Wood, Acoustic–structural coupled finite element analysis for sound transmission in human ear—Pressure distributions, Medical engineering & physics.28(5) (2006) 395-404
Wang, Modeling of sound transmission from ear canal to cochlea, Annals of biomedical engineering.35(12) (2007) 2180-2195
Shi, et al., FEM Simulation of Sound Transmission Based on Integrated Model of Middle Ear and Cochlea, Chinese Journal of Biomedical Engineering.30(001) (2011)60-66