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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......
): 1353-1361. [34] MIAO X, TIMMEL K, LUCAS D. Effect of an electromagnetic brake on the turbulent melt flow in a continuous-casting mold[J]. Metallurgical and Materials Transactions B, 2012, 43(4......
. Hydrogen storage characteristics of the nanocrystalline and amorphous Mg-Nd-Ni-Cu-based alloys prepared by melt spinning[J]. International Journal of Hydrogen Energy, 2014, 39: 3790-3798. [24] ZOU J X... alloys with a long-period stacking ordered phase[J]. Journal of Power Sources, 2017, 338: 91-102. [27] HOU X J, HU R, ZHANG T B, KOU H C, LI J S. Hydrogenation thermodynamics of melt-spun magnesium rich......
Al-Si alloys by intensive melt shearing [C]//IOP Conference Series: Materials Science and Engineering. Aochen: IOP Publishing Ltd., 2012. [15] LU D H, JIANG Y H, GUAN G S, ZHOU R F, LI Z H, ZHOU R......
salts are used as additives, during the reduction (1038-1349 K), the reaction temperature will exceed all the salts’ melting points except NaCl at 1038 K, and the added salts will melt and act......
, SONG Wei, WU Hai-bin. Effect of melt temperature treatment and modification on solidification structure of Al-20%Si alloy[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(9): 2075-2083. [9] 刘 政..., 2003, 13(1): 158-161. [19] LIM S C, LEE H B, KIM K H, KWON H C. The effect of electromagnetic stirring on the semi-solid microstructure of high-melt alloys[J]. Semi-solid Processing of Alloys......