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Online since: April 2021
Authors: Risdiana Risdiana, Fitrilawati Fitrilawati, Norman Syakir, Iman Rahayu, Soni Setiadji, Atiek Rostika Noviyanti, Zulfi Mofa Agasa, Diba Grace Auliya, Asep Supriadin
Vijayasekaran, et al, Synthetic polymers as materials for artificial vitreous body: review and recent advances, J.
Safriani, Risdiana, Characterization of Optical and Structure Properties of Polydimethylsiloxanes, Materials Science Forum 827 (2015) 99-104
Forum 966 (2019) 189-193
Rahayu, Risdiana, Synthesis of Polydimethylsiloxane and its Monomer from Hydrolysis of Dichlorodimethylsilane, Key Engineering Materials 860 (2020) 234-238.
Safriani, Risdiana, Characterization of Optical and Structure Properties of Polydimethylsiloxanes, Materials Science Forum 827 (2015) 99-104
Forum 966 (2019) 189-193
Rahayu, Risdiana, Synthesis of Polydimethylsiloxane and its Monomer from Hydrolysis of Dichlorodimethylsilane, Key Engineering Materials 860 (2020) 234-238.
Online since: June 2010
Authors: Abbas Najafizadeh, Rintaro Ueji, Ghasem Dini
Grain Size Dependence of the Flow Stress of TWIP steel
Ghasem Dini1, a, Rintaro Ueji2, b and Abbas Najafizadeh
1, c
1
Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111,
Iran
2
Faculty of Engineering, Kagawa University, 2217-20, Hayashi-cho, Takamatsu, 761-0396, Japan
a
gh_dini@ma.iut.ac.ir, bueji@eng.kagawa-u.ac.jp, ca-najafi@cc.iut.ac.ir
Keywords: TWIP steel, flow stress analysis, X-ray diffraction, dislocation density, grain size
Abstract.
Introduction Low stacking fault energy twinning induced plasticity (TWIP) steels with Mn content of 25-30% and other alloying elements such as C, Al and Si are a new group of the advanced high strength steels which have great potential in the automotive industry due to their exceptional combination of strength and ductility as a result of dynamic microstructure refinement due to mechanical twinning (i.e., the dynamic Hall-Petch effect) [1-4].
The effect of grain size on the engineering stress-strain curves of all samples are shown in Fig. 1a.
Fig. 1 (a) the engineering stress-strain curves and (b) the calculated dislocation density of all samples with different grain sizes In the case of coarse grained TWIP steel samples (for example with a mean grain size of 38.4µm), the activation of primary slip systems from dislocation sources (such as Frank-Read sources) during plastic deformation and the formation of dislocation pile-ups against grain boundaries act as strong obstacles (Fig. 2a) and produce a local stress concentration at the head of a pile-up [10].
Forum Vol. 561-565 (2007), p. 107
Introduction Low stacking fault energy twinning induced plasticity (TWIP) steels with Mn content of 25-30% and other alloying elements such as C, Al and Si are a new group of the advanced high strength steels which have great potential in the automotive industry due to their exceptional combination of strength and ductility as a result of dynamic microstructure refinement due to mechanical twinning (i.e., the dynamic Hall-Petch effect) [1-4].
The effect of grain size on the engineering stress-strain curves of all samples are shown in Fig. 1a.
Fig. 1 (a) the engineering stress-strain curves and (b) the calculated dislocation density of all samples with different grain sizes In the case of coarse grained TWIP steel samples (for example with a mean grain size of 38.4µm), the activation of primary slip systems from dislocation sources (such as Frank-Read sources) during plastic deformation and the formation of dislocation pile-ups against grain boundaries act as strong obstacles (Fig. 2a) and produce a local stress concentration at the head of a pile-up [10].
Forum Vol. 561-565 (2007), p. 107
Online since: March 2007
Authors: M. Ashraf Imam, Ralph W. Bruce, Arne W. Fliflet, L.K. Kurihara, D. Lewis III, A.K. Kinkead, M. Lombardi, Steven H. Gold
RECENT ADVANCES IN MICROWAVE AND MILLIMETER-WAVE
PROCESSING OF MATERIALS
D.
Work is now underway on construction of an engineering prototype, that will incorporate battery power, thermal management and will have packaging close to that of the final system.
Briggs, "Microwave Curing of Ceramic Composite Repair Materials," to be published in Proceedings of the 29 th Annual Conference on Advanced Ceramics and Composites, The American Ceramic Society Inc., Westerville, OH, 2005.4.
Kurihara, 'Processing of Advanced Materials with a High Frequency, Millimeter-Wave Beam Source and Other Microwave Systems," Materials Science Forum, Vols. 426-432, 4111-4116 (2003). 13.
Imam, "Use of a High Frequency, Millimeter-Wave system in Joining High Temperature Ceramics," Proceedings 13th IFHTSE/ASM Surface Engineering Congress, ASM, (2002). 16.
Work is now underway on construction of an engineering prototype, that will incorporate battery power, thermal management and will have packaging close to that of the final system.
Briggs, "Microwave Curing of Ceramic Composite Repair Materials," to be published in Proceedings of the 29 th Annual Conference on Advanced Ceramics and Composites, The American Ceramic Society Inc., Westerville, OH, 2005.4.
Kurihara, 'Processing of Advanced Materials with a High Frequency, Millimeter-Wave Beam Source and Other Microwave Systems," Materials Science Forum, Vols. 426-432, 4111-4116 (2003). 13.
Imam, "Use of a High Frequency, Millimeter-Wave system in Joining High Temperature Ceramics," Proceedings 13th IFHTSE/ASM Surface Engineering Congress, ASM, (2002). 16.
Online since: October 2018
Authors: A.R. Ibragimov, A.I. Saifutdinov, Lenar N. Shafigullin
Berndt advanced investigations of mechanical properties of thermal spray coatings under 4-point bending.
Konakova, The structure and mechanical properties of single-crystal nickel alloys with Re and Ru after high-temperature holds, Materials Science & Engineering, A 642 (2015) 304–308
Kashapov, IOP Conference Series: Materials Science and Engineering 86012005, 2015
The 8 International Forum on Strategic Technology.
Konakova, The structure and mechanical properties of single-crystal nickel alloys with Re and Ru after high-temperature holds, Materials Science & Engineering, A 642 (2015) 304–308
Kashapov, IOP Conference Series: Materials Science and Engineering 86012005, 2015
The 8 International Forum on Strategic Technology.
Online since: February 2011
Authors: Jun Hui Yin, Chang Zhi Jia, Jian Zheng, Chao Xiong
Analysis of Severe Plastic Deformation and Recrystallization of Cu
under Instantaneous Extrusion and High Speed Friction
Junhui YIN 1, a, Jian ZHENG 1, Changzhi JIA 1 and Chao XIONG 1
1Ordnance Engineering College, Shijiazhuang, Hebei, China
ayuanzhidao@163.com
Keywords: Cu; Severe Plastic Deformation (SPD); Recrystallization; Instantaneous Extrusion; Scanning Electron Microscopy (SEM)
Abstract.
Defect and Diffusion Forum (Volumes 297-301), 2010: 1312-1321
Doctoral Dissertation of Ordnance Engineering College, 2008: 22-23
Advanced Materials Research (Volumes 26-28), 2007: 1279-1282
Defect and Diffusion Forum (Volumes 297-301), 2010: 1312-1321
Doctoral Dissertation of Ordnance Engineering College, 2008: 22-23
Advanced Materials Research (Volumes 26-28), 2007: 1279-1282
Online since: September 2013
Authors: He Sun, Jian Hui Zhao, Fan Li
Application of Intelligent Materials in Vibration Control for Strapdown Inertial Navigation System
He Suna, Fan Lib and Jianhui Zhaoc
School of Instrumentation Science and Opto-electronics Engineering, Beihang University Beijing 100191, China
asunhe118@gmail.com, blifan@buaa.edu, czhaojianhui@buaa.edu.cn
Keywords: Intelligent materials, SINS, Vibration control, PID, Fuzzy PID
Abstract.
du/dt Fuzzification Fuzzy reasoning Fuzzy rule base Defuzzification PID controller Object + e ec Kp Ki Kd r(t) y(t) - Fig. 5 Fuzzy PID controller block diagram In this design, fuzzy control rules are made by control engineering knowledge,using 7 fuzzy subsets(NB, NM, NS, ZO, PS, PM, PB) and triangle membership functions.N represents ‘negative’ and P is ‘positive’, while ZO means ‘zero’.
And some new advanced effective control algorithms are necessary in order to cope with vibration in multiple degrees of freedom motion.
Information Technology and Applications (IFITA), 2010 International Forum, IEEE Vol.3 (2010), p. 95
du/dt Fuzzification Fuzzy reasoning Fuzzy rule base Defuzzification PID controller Object + e ec Kp Ki Kd r(t) y(t) - Fig. 5 Fuzzy PID controller block diagram In this design, fuzzy control rules are made by control engineering knowledge,using 7 fuzzy subsets(NB, NM, NS, ZO, PS, PM, PB) and triangle membership functions.N represents ‘negative’ and P is ‘positive’, while ZO means ‘zero’.
And some new advanced effective control algorithms are necessary in order to cope with vibration in multiple degrees of freedom motion.
Information Technology and Applications (IFITA), 2010 International Forum, IEEE Vol.3 (2010), p. 95
Online since: July 2016
Authors: Heng Keong Kam, Wen Chiet Cheong, Chan Chin Wang, Ying Pio Lim
STUDY OF FORGING PROCESS OF YTTRIUM-MODIFIED A356 ALUMINUM ALLOY AND NUMERICAL SIMULATION BY THERMO-VISCOPLASTIC FINITE ELEMENT METHOD
HENG KEONG KAM1,a *, CHAN CHIN WANG2,b , YING PIO LIM3,c,
and WEN CHIET CHEONG4,d
1-4Department of Mechanical and Material Engineering , Universiti Tunku Abdul Rahman, Malaysia
akamhk@utar.edu.my, bwangcc@utar.edu.my, climyp@utar.edu.my, d cheongwc@utar.edu.my
Keywords: A356 aluminum alloy, thermo-viscoplastic FEM, metal flow simulator, forging
ABSTRACT IN THIS STUDY, A356 ALUMINUM ALLOY WAS HEATED UP TO SEMI-SOLID STATE AND USED AS A BILLET FOR FORWARD AND BACKWARD EXTRUSION.
The motivation of this research is to introduce advanced manufacturing technology of semi-solid metal processes to the local industry by carrying out the basic research findings in order to support the industry as platform to acquire design know-how in producing high precision and sophisticated components and also in compliance with the government policy of energy saving and emission reduction.
Lim, Evaluation of Al-5Ti-1B and Al-10Sr in LM6 sand castings, Journal of Achievements in Materials and Manufacturing Engineering. 34/1 (2009) 71-78
Wang, Finite element simulation for forging process using euler’s fixed meshing method, Materials Science Forum. 575-578 (2008) 1139-1144
The motivation of this research is to introduce advanced manufacturing technology of semi-solid metal processes to the local industry by carrying out the basic research findings in order to support the industry as platform to acquire design know-how in producing high precision and sophisticated components and also in compliance with the government policy of energy saving and emission reduction.
Lim, Evaluation of Al-5Ti-1B and Al-10Sr in LM6 sand castings, Journal of Achievements in Materials and Manufacturing Engineering. 34/1 (2009) 71-78
Wang, Finite element simulation for forging process using euler’s fixed meshing method, Materials Science Forum. 575-578 (2008) 1139-1144
Online since: December 2018
Authors: Yutaka Sakata, Yasuo Marumo, Daichi Nishikubo, Tomohiro Nonaka, Yuji Segawa
Development of Apparatus for Evaluation of Wrinkles in Sheet Metal Forming Using Angle Beam Technique
Yuji Segawa1,a, Daichi Nishikubo1, Yasuo Marumo2,b,
Tomohiro Nonaka3,c and Yutaka Sakata4,d
1Department of Mechanical Engineering, National Institute of Technology, Miyakonojo College, 473-1, Yoshio-cho, Miyakonojo, Miyazaki, 885-8567, Japan
2Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1, Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
3NONAKA 3D Laboratory, 1-6-29, Hikino, Yahatanishi-ku, Kitakyushu, Fukuoka, 806-0067, Japan
4Department of Integrated System Engineering, Nishinippon Institute of Technology, 1-11, Aratsu, Kanda-machi, Miyako-gun, Fukuoka, 800-0394, Japan
ay_segawa@cc.miyakonojo-nct.ac.jp, bmarumo@mech.kumamoto-u.ac.jp, cnonaka3d@gmail.com, dysakata@nishitech.ac.jp
Keywords: Sheet metal forming; Wrinkle; Defect; Detection; Inspection; In-process; Ultrasonic wave; Angle beam technique
Abstract.
Forum, Vol. 382 (2018), pp. 127-131.
Forum, Vol. 382 (2018), pp. 127-131.
Online since: June 2020
Authors: Mariusz Frankiewicz, Robert Dziedzic, Colin Gerstenberger, Peter Scholz, Tristan Timmel, Tomasz Osiecki, Lothar Kroll
Park, Spring-back characteristics of fiber metal laminate (GLARE) in brake forming process, International Journal of Advanced Manufacturing Technology 32 (2007) 445–451
LS-DYNA Forum 2012.
In: Key Engineering Materials 2017, Vol. 744, pp. 311-316, doi: 10.4028/www.scientific.net/KEM.744, ISBN-13 978-3-0357-1116-5 [11] Gerstenberger, C.; Osiecki, T.; Kroll, L.; Scholz, P.; Seidlitz, H.: Processing and characterization of cathodic dip coated metal/composite-laminates.
Archives of Civil and Mechanical Engineering, Vol. 16, Iss. 3 (2016) pp. 467-472, doi: 10.1016/j.acme.2016.03.001
LS-DYNA Forum 2012.
In: Key Engineering Materials 2017, Vol. 744, pp. 311-316, doi: 10.4028/www.scientific.net/KEM.744, ISBN-13 978-3-0357-1116-5 [11] Gerstenberger, C.; Osiecki, T.; Kroll, L.; Scholz, P.; Seidlitz, H.: Processing and characterization of cathodic dip coated metal/composite-laminates.
Archives of Civil and Mechanical Engineering, Vol. 16, Iss. 3 (2016) pp. 467-472, doi: 10.1016/j.acme.2016.03.001
Online since: May 2007
Authors: Kouichi Maruyama, Jae Seol Lee, Ik Hyun Oh, Kyosuke Yoshimi, Hyeon Taek Son, Young Kyun Kim
Especially, magnesium alloys are attractive for many
engineering structural application owing to their low density, high specific strength and
easy-recycling.
Forum(2003) p419 [2] A.
Arslan Kaya: Advanced Engineering Materials, 5, No. 12 (2003) p. 866
Forum(2003) p419 [2] A.
Arslan Kaya: Advanced Engineering Materials, 5, No. 12 (2003) p. 866