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It is possible to study and analyze the corrosion behavior and corrosion mechanism of materials in the atmosphere in a relatively short period of time by simulating and accelerating the test conditions of corrosion in the atmosphere, and to determine the corrosion performance of the materials.
Mechanical properties of welded joints under different welding processes of tested steel Welding method Tensile test Impact test Bending test Sampling location Rm/MPa A/% Break location Sampling location Kv2 (-20℃)/J 180° GMAW 35KJ/cm Welded joint 589 32 Base material Weld 145 D=2a HAZ 308 Fusion line 292 SAW 50KJ/cm 595 31 Base material Weld 112 D=2a HAZ 291 Fusion line 288 SMAW 25KJ/cm 602 28 Base material Weld 103 D=2a HAZ 318 Fusion line 320 6 Engineering Applications At present, weathering steel has been widely used in domestic bridges, railway vehicles, petrochemical industries and other industries.
Steel materials for structures in a new ironmongery era.
Journal of mate-rials in civil engineering.1 (2003) 2-24
Corrosion Science. 83(6) (2014) 6-31.

Experimental programs Raw materials.One type of P.O 42.5 cement was used for experiments, whose properties accord with Common Portland cement (GB175-2007) [3].
Concrete: Microstructure, Properties, and Materials[M], McGraw-Hill Company, 2005
[7] Shaocheng Ji, A generalized mixture rule for estimating the viscosity of solid-liquid suspensions and mechanical properties of polyphase rocks and composite materials[J].
JOURNAL OF GEOPHYSICAL RESEARCH, 2004, 109:1-18
[8] Liu Shuhua, Leng Faguang，Recycled concrete technology[M], Bejing: Bejing building materials industry press, 2007

Introduction The enhancement of cement-based building materials such as e.g. mortar or concrete by addition of superplasticizers and latex dispersions is well known.
Such latex-treated materials are known as polymer concrete or mortar.
Materials and Methods Preparation of core templates.
B.: Polymer-modified concrete: Review, Journal Of Materials In Civil Engineering 9 (2) (1997) 85-92
[7] Bertrand, P.; Jonas, A.; Laschewsky, A.; Legras, R.: Ultrathin polymer coatings by complexation of polyelectrolytes at interfaces: suitable materials, structure and properties, Macromol.

BOX 64, Cheraga 16014 Algiers Algeria. 2University of Science and Technology Houari Boumediene, 16111 Alger, Algeria.
Super duplex stainless steels (SDSSs), characterized by their dual-phase ferrite-austenite microstructure, have garnered significant attention as structural materials in various industrial applications.
Materials and Experimental Procedures Super duplex stainless steel 2507 (25% Cr, 7% Ni, 4% Mo, 0.2% N, balance Fe) was used for this study.
These insights contribute to the development of more resilient materials for industrial applications, particularly in sectors where corrosion resistance is critical.
Cheniti, Brahim Belkessa, Karima Tahar-chaouch, and Ramdhane Kouba, Effect of Aging Temperature on the Microstructure, Local Mechanical Properties, and Wear Behavior of a UNS S32750 Super Duplex Stainless Steel, Journal of Materials Engineering and Performance, Volume 30, pages 546–555, (2021)

Most of the rocks are heterogeneous material with various types of discontinuities in all scales such as joints, micro cracks, pores.
Numerical model The Rock Failure Process Analysis (RFPA) system, developed by CRISR [3], is a finite element tool for handling the progressive failure of heterogeneous and permeable materials.
Material with higher m values represents more homogeneous material and lower m values indicate that the materials are more heterogeneous.
The investigation in this section is based on the fact that rock is a naturally formed material and is generally heterogeneous.
Feng: Coupling Analysis of Seepage and Stress in Rock Failure Process, Chinese Journal of Geotechnical Engineering 23 (4) (2001), pp. 489-493 [6] S.P.

The chemical composition of the materials is given in Table 1.
Table 1 Chemical composition of materials –[wt%] C Si Mn P S Al Nb V Ti S355 MC < 0.10 < 0.03 < 1.50 < .025 < .010 > .015 < .09 < .20 < .15 G3Si1 φ 1.2 0.06-0.14 0.70-1.00 1.30-1.60 < .025 < .025 /n.a.
Due to the severe turbulence of the molten droplet, the Mn-Si oxides can be involved in the molten materials.
[7] O.Grong, N.Christensen: Scandinavian Journal of Metallurgy Vol.12 (1983) p.155-165
-E.Svensson, N.Markocsan: Science and Technology of Welding & Joining, Vol. 17 (2012) p.643-648.

Effect of ENR Contents on Cure Characteristic and Properties of NR/ENR/EVA Foam Chanchai Thongpin*, a, Achiraya Muanwongb, Jatuporn Yanyongsakc and Pongsakorn Lorphaitoonc Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Sanamchandra Palace Campus, Nakornpathom, Thailand *,aTHONGPIN_C@su.ac.th, bronaldo_gogu@hotmail.com, clasinbon@gmail.com, dboss0199pe@gmail.com Keywords: rubber blend foam, ENR compatibilizer, cure characteristic, mechanical properties and resilience Abstract.
Experimental Materials: The rubber used which were natural grade STR5L (standard thai rubber) and epoxidized natural (ENR) grade 50% epoxidation were purchased from PJ RUBBER CO.
Table 1 Recipe of the rubber compounds Materials Ingredient Content (phr)a Materials Ingredient Content (phr)a NR/ENR/EVA, 60/10/30, 70/10/20, 50/20/30, 60/20/20 100 TMTD 0.5 ZnO 3 DCPa 1 Stearic acid 2 Sulphurb 0.5 CBS 2.5 EW 10 a Parts per hundred parts of EVA. b Sulphur content with respect to NR based content Cure characteristic investigation: They were investigated using Moving Die Rheometer (MDR, model GT-M2000) at 157 °C for 16 min.
Yau: Materials Transactions, Designing Experimental Methods to Predict the Expansion Ratio of EVA Foam Material and Using Finite Element Simulation to Estimate the Shoe Expansion Shape, Vol. 53 No.9 (2012), p. 1685-1688
Sipaut, Correlation between the acoustic and dynamic mechanical properties of natural rubber foam: effect of foaming temperature, Materials and Design.

.& Elec.Engineering, Shandong University of Science & Technology, China 2 School of Mechanical Engineering, Shandong University, China awsyskd@yahoo.com.cn, baixing@sdu.edu.cn, czhaojun@sdu.edu.cn Keywords: High-speed machining (HSM), Residual stress, Finite element method (FEM) Abstract.
Yielding criterion of the material is determined by Von Mises's yield condition.
The material behaviors are shown in Table 1.
If the compressive stress does not reach the material yielding point, a residual tensile stress will not exist in the surface.
C: Private Communication Between Maekawa and Childs (Childs, 1997, Colloque C3, Journal de physique, ?

The key materials of vanadium redox are studied in the laboratory, and its industrialization is still in developing [3].
Both of the positive and negative materials transform to PbSO4 during discharge process.
GEL cells with tubular structure show better strict to the active materials of the positive electrode and set down the break of the active materials.
Yang: Advanced Materials Industry.
Qin: Chinese Journal of Power Sources.

Acknowledgements Part of this work was performed in the framework of a European FP6 project “Multi-scale modelling and characterization for phase transformations in advanced materials” (MRTN-CT-2004-505226).
Ren: Physical Metallurgy of Ti-Ni-based shape memory alloys, Progress in Materials Science Vol. 50 (2005), p. 511 [2] Y.
Schryvers: Nature Materials Vol. 8 (2009), p. 752 [7] M.J.
Schryvers: Journal of Microscopy Vol. 233 (2009) p. 61 [10] W.
Tang: Metallurgical and Materials Transactions A Vol. 28 (1997), p. 537 [11] S.