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with increasing holding time, which was at the expense of the particle density. 3.2 Growth kinetics and evolution mechanism The coarsening observed in globular particles is usually described... Isothermal coarsening of primary particles during rheocasting GUO Hong-min(郭洪民)1, LUO Xue-quan(罗学泉)1, ZHANG Ai-sheng(章爱生)1, YANG Xiang-jie(杨湘杰)2 1. School of Materials Science and Engineering......
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Modeling of shear induced coarsening effects in semi-solid alloys M. MODIGELL1, A. POLA2 1. AVT, Chair of Mechanical Process Engineering, RWTH Aachen University, Turmstr. 46, D 52056 Aachen... rheological shear experiments with semi-solid alloys, coarsening of the particles will falsify the interpretation of the experimental results. The coarsening is intensified by the shear induced......
: A Microscopic phase-field simulation of influence of interfacial mismatch stress on coarsening mechanism of aluminum alloy MA Rui, WANG Yong-xin, CHEN Zheng, MIAO Hai-chuan, ZHONG Han-wen... coarsening process in aluminum alloys was investigated using a microscopic phase-field model. The results show that, when the interface mismatch stress is zero, the coarsening mechanism complies......
transformation, experiments and theoretical studies have involved every stage in this process, such as nucleation mechanism[2-3], coarsening behaviors[4-5] and mechanical performance. As computer... decomposition mechanism to nucleation and growth mechanism in a special composition range. For coarsening behaviors during precipitation, common analysis lies in the size of particles satisfying exponent......
and the coarsening rate increases with the increase of reheating temperature. The eutectic phase is produced in the molten region when quenched in the cold water. The microstructure evolution in the semisolid..., the same thing as that in the second stage happens except that all the α(Al) matrixes are melted. Key words: spray forming; Al-Si alloy; semisolid; coarsening rate 1 Introduction Spray forming......
PSDs and coarsening exponent were discussed by comparing the experimental data with predictions of LSW and TIDC models.Finally,coarsening mechanism could be divided into four regimes:(i) coarsening...Coarsening kinetics of γ’ precipitates in a Re-containing Ni-based single crystal superalloy during long-term agingJiachen Zhang,Lin Liu,Taiwen Huang,Jia Chen,Kaili Cao,Xinxin Liu,Jun Zhang,Hengzhi......
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id="ChDivSummary" name="ChDivSummary">Static coarsening mechanism of selective laser melted(SLMed) Ti–6Al–4V with a lamellar microstructure was established at temperatures from 700℃ to 950...℃ and 950℃, respectively. This indicated the coarsening mechanism was bulk diffusion at 700–800℃, and a combination of bulk diffusion and interface reaction at 900℃ and 950℃ conditions.关键词:......
, the coarsening processes of solid grains of as-received and 3P samples were dominated by the coalescence and Ostwald ripening mechanism, respectively. The difference of coarsening processes was mainly... microstructure; liquid phase distribution; coarsening mechanism 1 Introduction Magnesium alloys have been considered as promising light metals in aerospace, rail transportation and automobile because......