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nanocomposites prepared by static melt intercalation[J]. Journal of Fire Sciences, 2005, 23(3): 193-208. (编辑 陈灿华) 收稿日期: 2019 -09 -26; 修回日期: 2019 -12 -14 基金项目(Foundation item):国家自然科学基金资助项目(51676210,51906261);湖南省自......
the melting. To promote chemical composition homogeneity and to avoid the influence of cooling rate on microstructures, we used the same melting process to melt all the ingots five times during the melting......
to the additional heating at both ends. In Figures 10(c) and (d), the temperature nephogram shows cocoon-shaped. The cladding layer begins to melt in large area with the highest temperature above 1100 °C......
of 99.5% N2 and 0.5% SF6 (vol.%). The Zn, Cu and Mg-30Zr master alloys were added to pure Mg melt after ~1.5 h, and the melting temperature was increased to 720 °C. The temperature......
] DONG Guang-ming, SUN Guo-xiong, LIAO Heng-cheng. Modification of eutectic silicon in Al-Si cast alloys[J]. Foundry, 2005. [16] VIJEESH V, PRABHU K N. The effect of cooling rate and cerium melt treatment......
处已经凝固为固相(Solid),气体无法进一步侵入时,厚壁处仍然是未凝固状态(Melt),气体会继续侵入其中,所以厚壁处形成的孔洞会更多. 合金的伸长率对气孔缺陷非常敏感,断裂往往起源于孔洞,这些孔洞是文中制备的合金伸长率在SDAS较小时比传统砂型铸造低的主要原因.3DP砂模由散砂逐层印刷而成,无压实过程,为保证足够的机械强度用于铸造,当前阶段,其粘结剂含量(1%~4%)一般会比传统自硬树脂砂......
was maintained for 10 min. Finally, the samples were collected from the melt using a d70 mm × 75 mm stainless steel sampler and water-cooled subsequently. The actual compositions of the samples were quantified......
]. Materials Science and Engineering B, 1998, 55: 134-142. [31] LIU Peng, DU Yu-ping, YANG Qi-qin, TONG Ye-xiang, HOPE G A. Induced codeposition of Sm-Co amorphous films in urea melt and their magnetism [J......
): 1357-1369. [12] 任 峻, 马 颖. 熔体过热处理对Al-Ti-B-RE细化剂组织和性能的影响[J]. 铸造技术, 2010, 31(8): 1037-1039. REN Jun, MA Ying. Influence of melt superheating treatment on the microstructure and properties of Al-Ti-B-RE refiners......
compositions in this work was in wt.% unless otherwise stated) melted into a graphite crucible in an electric resistance furnace at 720 °C. The melt was degassed with 0.2% C2Cl6. As the melting temperature......