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were also observed. It is shown that the high heating-rate may cause stronger local thermal inconsistency, which remarkably increases the microdefects and reduces the macroscopic mechanical properties of the material. Key words: magnesium alloy AZ31; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency 1 Introduction It is known that the high and rapid increase......
cause stronger local thermal inconsistency (LTI) and remarkably increase the microdefects in the material, which may markedly degrade the macroscopic mechanical properties of the material.
Key words: brass H62; pre-loaded stress; heating rate; failure temperature; local thermal inconsistency
Effect of local chilling on morphology of primary α(Al) in semi-solid A356 alloy
LIU Zheng(刘 政)1, 2, MAO Wei-min(毛卫民)2, ZHAO Zhen-duo(赵振铎)2
1. Faculty of Material and Chemical Engineering...;
Abstract: The semi-solid slurry of A356 alloy was prepared by low superheat pouring and slightly electromagnetic stirring, in which a pure copper rod was used to produce local chilling......Effect of local chilling on morphology of primary α(Al) in semi-solid A356 alloy
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来源: 《中国有色金属学报(英文版)2008年第3期》——刘政 毛卫民 赵振铎
J. Cent. South Univ. (2020) 27: 3213-3226 DOI: https://doi.org/10.1007/s11771-020-4541-5 Local corrosion characteristics of a graphene-oxide-modified inner coating LIAO Ke-xi(廖柯熹)1, LI Xiao-xiao(李肖... 2020 Abstract: Pencil hardness testing, electrochemical impedance spectroscopy, scanning electron microscopy, and scanning Kelvin probe microscopy were used to study the local corrosion......
J. Cent. South Univ. (2018) 25: 1535-1544 DOI: https://doi.org/10.1007/s11771-018-3846-0 Estimation of thermal decomposition temperatures of organic peroxides by means of novel local and global... for computations. In this study, a QSPR model for prediction the thermal decomposition temperatures of organic peroxides had been developed by using novel local and global molecular descriptors. To the best of our......
Heidelberg 2011 Abstract: To explore the thermal responses under the non-thermal equilibrium cold environmental conditions, a laboratory study was conducted in climate chamber. The local skin temperatures and thermal sensation of 20 subjects were recorded at 10 min intervals for 90 min under air temperatures of 7.4, 9.1, 11 and 15 °C. The results show that both local skin......
MHD three dimensional flow of viscoelastic fluid with thermal radiation and variable thermal conductivitySHEHZAD S A1, HAYAT T1, 2, ALSAEDI A2(1. Department of Mathematics, Comsats Institute... transfer analysis is carried out in the presence of variable thermal conductivity and thermal radiation. Arising nonlinear analysis for velocity and temperature is computed. Discussion to importantly......
experiment. The results show that the local warm airflow can improve human’s thermal sensation, but it may make subjects dissatisfied because of dry and strong wind, also subjects may feel unwell... be used as a local heating way to improve human comfort efficiently.Key words:thermal environment; comfort; local heating; warm airf, low......
Development mechanism of internal local corrosion of X80 pipeline steelZhuowei Tan1,Liuyang Yang2,Dalei Zhang2,Zhenbo Wang1,Frank Cheng3,Mingyang Zhang4,Youhai Jin11. China University of Petroleum (East China)2. School of Materials Science and Engineering, China University of Petroleum (East China)3. University of Calgary4. School of Thermal Engineering, Shandong Jianzhu University摘 要:
(Fig.2) are depicted in Fig.3. Fig.4 shows the distribution of thermal residual stresses along y directions. Fig.2 Local coordinates of diamond table Fig.3 Thermal residual stress distribution... Thermal residual stress of polycrystalline diamond compacts CHEN Feng(陈 枫)1, XU Gen(徐 根)2, MA Chun-de(马春德)1, XU Guo-ping(徐国平)3 1. Testing Center, Central South University, Changsha......