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J. Cent. South Univ. (2018) 25: 2567-2577 DOI: https://doi.org/10.1007/s11771-018-3936-z Failure simulation in resistance spot-welded lap-joints using cohesive zone modeling Mohammad Ali Saeimi.... Then the results were transferred to 3D models as pre-stress. In this step, cohesive zone model (CZM) technique was used to simulate fracture in the models under tensile load. Cohesive zone parameters were......
J. Cent. South Univ. (2017) 24: 1866-1880 DOI: https://doi.org/10.1007/s11771-017-3594-6 Forming condition of transient saturated zone and its distribution in residual slope under rainfall... infiltration process under rainfall conditions was studied in the present work. The emphases are the formation, distribution and dissipation of transient saturated zone. As for the calculation......
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Effect of δ Phase on Microstructure and Hardness of Heat-Affected Zone in TIG-Welded GH4169 SuperalloyTian-Fu Wang,Xin-Jie Di,Cheng-Ning Li,Jia-Mei Wang,Dong-Po Wang摘 要:The GH4169 superalloy with different content of δ-Ni3Nb phase was welded by tungsten inert gas welding.A detailed study of microstructure and hardness of heat-affected zone(HAZ......
EFFECT OF Zr ADDITION TO Ti-KILLED STEEL ON INCLUSION FORMATION AND MICROSTRUCTURAL EVOLUTION IN WELDING INDUCED COARSE-GRAINED HEAT AFFECTED ZONE Z.Xu1,H.Su2,C.F.Yang2,Y.H.Yang3,Y.Q.Zhang2,F.Chai2... of Ti-bearing inclusions, favored the grain refinement of the welding induced, coarse-grained heat affected zone (CGHAZ) with enhanced impact toughness in Ti-killed steels, which were examined based......
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with dual phase structure were investigated by XRD phase analysis. It is shown that the composition of η phase in the core zone is Co3W3C (M6C type). The structure of cobalt based solid solution... phase structure, for short DP cemented carbide, is characterized by three zones structure, i.e. surface zone with low cobalt content, intermediate zone (cobalt-rich zone) with cobalt graded structure......
Effect of cooling rate on the phase transformation and stability of the mushy zone during the solidification of WaspaloyLing Wang~(1)),Yi-jun Yao~(1)),Bin Liu~(1)),Bo-ying Zhong~(2)),and Jian-xin... the microstructure,microsegregation, and fluid flow tendency of the superalloy Waspaloy in the mushy zone,which had been solidified at different cooling rates. The investigation was accompanied......
intergrowth zone, so hypereutectic alloy can also achieve eutectic structure. In Fig.3(e) the hypereutectic structure is replaced by the eutectic structure due to the primary phase is suppressed. It can... Phase selection in highly undercooled Fe-B eutectic alloy melts YANG Chang-lin(杨长林), YANG Gen-cang(杨根仓), LU Yi-ping(卢一平), CHEN Yu-zeng(陈豫增), ZHOU Yao-he(周尧和) State Key Laboratory......