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Evaluation method of cracking resistance of lightweight aggregate concreteJI Tao(季韬), ZHANG Bin-bin(张彬彬), CHEN Yong-bo(陈永波), ZHUANG Yi-zhou(庄一舟) (College of Civil Engineering, Fuzhou University... with a clapboard was used. The relationship between the ceramsite type and the cracking resistance of LWAC was built up and compared with that of normal-weight coarse aggregate concrete (NWAC). A new......
Corrosion resistance of 2195 aluminum alloy treated by multi-step-heating-rate controlled process XU Yue(许 越), LIU Yu-feng(刘玉峰), GENG Ji-ping(耿季平) School of Materials Science and Engineering... to prolong its service life, a multi-step-heating-rate(MSRC) process was carried out. Investigations were carried out to find the effect of the MSRC process on the alloys corrosion resistance. It is found......
ON FATIGUE CRACK PATH DEVIATION AT ELEVATED TEMPERATURE IN ELECTRON BEAM REPAIRED WELDMENTS OF TURBINE DISK L.H.Li1,Y.H.Zhang1,X.A.Zhang2,H.Y.Zhao3,H.Q.Zhang3 (1.School of Mechanical Engineering..., Tsinghua University, Beijing 100084, China) Abstract:Fatigue crack growth behaviors in electron beam weldments of a nickel-base superalloy are studied. The objective of this paper is to discuss effects......
at 28 d is reduced by 2 ℃. In this way, the crack resistance is improved and it is feasible both technically and economically to produce HPC for dam concrete. Key words: multi-powder paste; dam concrete; high performance concrete; crack resistance; adiabatic temperature rise ......
with coarse secondary α phase exhibits better comprehensive properties of good crack propagation resistance (with long Paris regime ranging from 15 to 60 MPa·m1/2), high yield strength (1113 MPa) and ultimate strength (1150 MPa), and good elongation (11.6%). The good crack propagation resistance can be attributed to crack deflection, long secondary crack, and tortuous crack path induced by coarse......
J. Cent. South Univ. (2017) 24: 866-874 DOI: 10.1007/s11771-017-3489-6 Crack growth analysis for rock-like materials with ordered multiple pre-cracks under biaxial compression WANG Min(王敏)1, 2, CAO... in these experiments. Through biaxial compression experiments, the influence of both the number of pre-cracks and pre-cracks angles to crack growth was analyzed. Meanwhile, species of rock bridge failure were summarized......
at high temperature for short time. These GPB zones can improve the fatigue crack propagation resistance of 2524 aluminum alloy, however the crack closure does not change. Keywords: 2524 aluminum alloy... of artificial aging on the fatigue crack propagation resistance of 2000 series aluminum alloys[J]. International Journal of Fatigue, 2001, 23(1): 265-276. [10] Srivatsan T S, Kolar D, Magnusen P......
Crack propagation mechanism of compression-shear rock under static-dynamic loading and seepage water pressureZHOU Zhi-hua(周志华)1, 2, CAO Ping(曹平)1, YE Zhou-yuan(叶洲元)2(1. School of Resources and Safety... the water inrush mechanics of underground deep rock mass subjected to dynamic disturbance such as blasting, compression-shear rock crack initiation rule and the evolution of crack tip stress intensity factor......
of crack formation.XPS results demonstrate the existence of a Ti-(C N) chemical bond in the composite coatings,which improves the wear resistance of the coatings.It is indicated that the wear resistance...Wear Resistance of TiNx/CFy Coatings Deposited by RF Magnetron Co-SputteringLin Zhu1,2,Jinwu Wang1,Zhuang Liu21. College of Engineering,Northeast Agricultural University2. School of Light Industry......
; Abstract: The fatigue pre-cracking 304 stainless steel (SS) specimens with lengths of 1.002 mm (L-crack) and 0.575 mm (S-crack) were prepared. Their corrosion behavior was studied by electrochemical noise (EN) in 4 mol/L NaCl + 0.01 mol/L Na2S2O3 solution under slow-strain-rate-testing (SSRT) conditions. Moreover, the characteristics of L-crack’s surface morphology and potential......
