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There was a large of difference in machining morphology by laser electrochemical micromachining with masks in two different metal materials.
Therefore, only the appropriate process parameters, composite processing advantages can realize obviously. 3.2 The composite processing of different materials In the laser irradiation region, there will be bubbles covered the surface of the metal target immediately.
The stress concentration etching appeared on two metal materials.
Generated pits can also promote stress concentration and accelerate material removal.
Acknowledgements The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (50975127), China Postdoctoral Science special Foundation (201003558) and the Natural Science Foundation of Jiangsu (BK2011522).

Laser Cutting experiment The material of the test is SA738 GREAD B curved sheet.
Journal of Zhejiang Institute of Science and Technology, Vol.19(2002), p.92.
Journal of materials processing technology, Vol.155(2004), p.2106
Journal of Chinese mechanical engineering, Vol.14(2003), p.737.
Journal of materials processing technology, Vol.63(1997), p. 637.

Progress in Materials Science. 39 (1995) 243-273
Materials Science and Engineering A. (2007) 130-134
Materials Review. 14 (2000) 44-46
Journal of Materials Science and Engineering. 26 (2008) 107-109
Materials Protection. 42 (2009) 64-66

According to Metallic Materials-unified Method of Test for Determination of Quasistatic Fracture Toughness (GB / T 21143-2007) and Metallic Materials-determination of Plane-strain Fracture Toughness (GB 4161-2007), which are test standards in Chinese, Q460C(14mm at thick) steel’s three point bending (TPB) test was carried out under 5 temperature points containing respectively -60 °C, -40 °C, -20 °C, 0 °C and +20 °C.
Material and Size of Specimen.
Brittle Transition Temperature The transition temperature of toughness-brittleness was a main index of low-temperature brittle materials, when which value increasing, the material was much easier to switch toughness to brittleness.
[7] Y.M.Wu, Y.Q.Wang and Y.J.Shi: Journal of Tsinghua University (Science and Technology) Vol.45 (2005), p.730-732, in Chinese
[9] Y.M.Wu, Y.Q.Wang and Y.J.Shi, et al.: Journal of University of Science and Technology Beijing, Vol.11 (2004), p.442-448, in Chinese

Materials and Methods The growth mechanism of growth on ZnO nanorods can be explained based on the chemical reactions in the chemical bath deposition process, and theory of nucleation and growth of ZnO crystal [14].
Oueslati, 'Effects of Silicon Porosity on Physical Properties of Zno Films', Materials Chemistry and Physics, 175 (2016), 233-40
Rusop, 'Novel Synthesis of Aligned Zinc Oxide Nanorods on a Glass Substrate by Sonicated Sol–Gel Immersion', Materials Letters, 64 (2010), 1211-14
Golobostanfard, 'Zno Nanorods Array Synthesized by Chemical Bath Deposition: Effect of Seed Layer Sol Concentration', Procedia Materials Science, 11 (2015), 352-58
Shabannia, 'Vertically Aligned Zno Nanorods on Porous Silicon Substrates: Effect of Growth Time', Progress in Natural Science: Materials International, 25 (2015), 95-100

Hamouda: Journal of Materials Processing Technology, 2004. 155-156: p. 1723-1726
Samin: Journal of Materials Processing Technology, 2008. 201(1-3): p. 731-735
Kennedy: Materials Science and Engineering A, 1997. 237(2): p. 200-206
Chu: Materials Science and Engineering A, 1995. 202(1-2): p. 172-178
Ho: Journal of Materials Processing Technology, 2006. 171(3): p. 411-416.

Salt damage in porous materials: how high supersaturations are generated [J].
Journal of Crystal Growth, 2002, 242 (4) : 435-454 [6] Scherer G W.
Study of Stochastic Damage Constitutive Relationship for Concrete Material [J].
Journal of Tongji University，2001，29(10)：1135-1141．
Journal of The Chinese Ceramic Society.2001,29(6)：530-534 (in Chinese) [13]Kosa K, Naaman A E, Corrosion of steel fiber reinforce concrete, ACI Materials Journal,1990,87(1): 27-37

MATERIALS AND METHODS Samples: Nd-Fe-B magnets provided by Crucible-U.S.A were used in this study.
The EIS results for porous materials depend on the ac signal penetration.
Narumya, (1994), Japan. 5 - Mitsubushi Materials Corporation, K.
Franco, Key Engineering Materials, 189-191 (2001) 673-678. 8 - M.C.E.
Franco, The Journal of Corrosion Science and Engineering, 2(1999) paper4.

It mainly involves materials science, optics, electromechanical engineering, biomedicine and other disciplines.
For different materials, different methods are suitable for the fabrication of microfluidic chips.
Experimental preparation Materials.
Journal of Applied Optics, 2011, 32(4):613-617
Research progress of materials and fabrication methods of microfluidic chip[J].

These materials have an excellent biocompatibility, osteoconductivity and osteoinductive potential [1].
The interaction of the materials and cells are related with chemical, physical and mechanical properties.
Results and Discussion The materials’ phases were confirmed by XRD before and after sintering, no contamination was observed on raw materials, and in the sintered samples there was no phase transformation.
Legeros, Biphasic calcium phosphate bioceramics: Preparation, properties and applications, Journal of Materials Science: Materials in Medicine 14 (2003) 201-209
Daculsi, Macroporous biphasic calcium phosphate ceramics versus injectable bone substitute: A comparative study 3 and 8 weeks after implantation in rabbit bone, Journal of Materials Science: Materials in Medicine 12 (2001) 385-390 [6] M.