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The material of the blank is 40Cr.
R1110646 ) , the Natural Science Foundation of Zhejiang of China(Grant No.
LY12E05008 ) and the Natural Science Foundation of Ningbo of China(2012A610078).
Ordnance Material Science and Engineering, 1994,17(6): 26-30
Journal of University of Science and Technology Beijing, 2012, 34 (5): 571-575.

Other properties of obtained materials were also investigated using XRD, BET, TGA, SEM analysis methods.
Using seashells as adsorbent could be an economic and environmental methods as the process is high efficiency, low-cost materials for taking advantage of aquaculture’s waste product.
Materials and Methods Adsorbent and Absorbate.
Prieto, Removal of Cadmium from Wastewaters by Aragonite Shells and the Influence of Other Divalent Cations, Environmental Science & Technology 41 (2007) 112-118
Park, Oyster Shell as a Low-Cost Adsorbent for Removing Heavy Metal Ions from Wastewater, Polish Journal of Environmental Studies 28 (2019) 2949-2959.

Introduction From the beginning of the 20th century 60s Goldfein began to explore the possibility of synthetic materials as cement mortar, and the invention of nylon, polypropylene and polyethylene fibers helped to improve the impact resistance of mortar.
So we can use the low Ef synthetic fiber as the reinforcing material, and then the prepared fiber reinforced concrete may be higher Gc[4].
Crack resistance effect can reduce the plastic cracks and internal micro-cracks in the number and scale, improving the continuity of concrete materials, media, and ultimately improve the overall performance of concrete, particularly under dynamic loading capacity.
Science and Technology Press, Beijing. 124 ~ 128. (2007) [2] Ying Chen, Hong Daojiang, Feng Xinquan etc.
Journal of Heilongjiang Institute of Technology, 3:1~4.(2008)

Hot Forming of Boron Alloyed Manganese Steels Miklos Tisza Full professor, Head of Department Institute of Materials Science and Technology University of Miskolc, Miskolc-Egyetemváros, Hungary tisza.miklos@uni-miskolc.hu Keywords: Hot Forming, Press Hardening, High Strength Steels, Boron-alloyed Manganese Steel.
Concerning the ever increasing requirements on the increase of crash resistance of vehicles, high strength materials are more and more widely used.
Among these high strength materials Manganese-boron steels are the most often used in hot press forming.
Materials used in hot press forming There are intensive research works in progress on the application of various grades of high strength steels.
E.: A review on hot stamping, Journal of Materials Processing Technology, vol. 210 (2010) pp. 2103-2118

Research on Hot Deformation Behavior of the X100 Pipeline Steel Wan-Hua YUa,*, Fei LIUb, Shan GAOc and Su-Dong CHENd School of Materials Science and Engineering, University of Science and Technology Beijing, 30 XueYuan Road, Beijing 100083, PR China austbywh@sina.com, bliufei_sky@126.com, cgaoshan_08@163.com, dcsd205070610@126.com *Corresponding author Keywords: X100 pipeline steel, hot deformation, flow stress, constitutive equation Abstract.
Experimental The test materials were taken from an X100 roughing slab produced by a domestic factory.
Solution of the Material Constants.
Liu, Research on alloy design for X100 hot-rolled strip steel, Transaction of Materials and Heat Treatment. 33(2012) 76-81
(Science and Technology). 39(2008) 549-553

In order to complete the task, students need access to collect and read many material, and some of these materials selection, processing and editing, for some material needs to be some notes and instructions, and finally through the landscaping design to form a fine pages, different groups will integrate their work together to form a feature rich web site.
Teachers, according to the theme of the content unit, from the Internet to download and search for more articles related to the topic of teaching at different levels of difficulty, illustrated reading materials, to organize a web page.
On the basis of learning in teaching, teachers provide students with a lot of reading materials to expand, expand the students input information to improve their reading skills.
Acknowledgment This research is supported by Hebei Science Fund Project in 2011 ( No.
Adults with HighEducation Journal, 2006, (04):9-12 [3] J.K.

Test materials and methods Test materials.The various performance indicators of the fibers are show in Table 1. 
Production and conservation of specimens.The PVA fiber must have a good dispersion, the mixing of all the materials are complete in the mortar mixer, which is JJ-5.
First, weighed cementitious materials (including cement and fly ash) and fine sand mixed about 2 minutes, then weighing good water-reducing agent dissolved in water are add to the mixture and stir about 3 to 5 minutes, finally join PVA fiber to stir about 4 to 5 minutes. 
:Journal of Engineering Mechanics, ASCE Vol.188(1992), p.2246-2264
[4] Lin Z, Kanda T, LI V.C: Concrete Science Engineering, RILEM Vol.1(1999),p.173–184

Functionally graded materials (FGM), proposed by M.
On the design of layered ceramic composites Materials design.
Materials design lies in the choose of the matrix materials and interlayers.
Materials design mainly determine the type of materials to be used according to the thermal match and chemical compatible.
Graphite, BN, ZrO2, Al2O3 can be used as Interlayer materials.

Recent progress made in the field of aviation (cooling holes in jet turbine blades), space, automobile, electronics and medical (surgical implants) manufacturing has created the need for ECM micro machining in extremely hard and brittle materials [1,2].
Acknowledgments This work was funded by National Natural Science Foundation of China (No. 50635040).
Sen and H.S Shan: A review of electrochemical macro- to micro-hole drilling processes, International Journal of Machine Tools and Manufacture, Vol.45(2005), p.137
Chinese Journal of Mechanical Engineering, Vol.42(2006), p.163
Xu: Improvement of electrochemical machining accuracy by using dual pole tool, Journal of Materials Processing Technology, Vol.129(2002), p.15.

Introduction Cast irons with spheroidal shape of graphite, called also spheroidal graphite cast irons (SGI), are well known as structural materials for various applications.
Metallurgical and Materials Transaction A: 1997: 28A: 2015 - 2025
Scandinavian Journal of Metallurgy: 1993: 22: 300 - 309
Metallurgical and Materials Transactions A: 1996: 27A; 2209 - 2220
Scandinavian Journal of Metallurgy: 1994: 23: 151 - 163