Effect of Rare Earth on Solidification Microstructure and Cast Thermoplasticity of Fe-36Ni Invar Alloy AITranslate
Abstract AITranslate
Effect of rare earth on solidification microstructure and cast thermoplasticity of Fe-36Ni invar alloy was studied through a vacuum induction furnace and a Gleeble--3800 thermal mechanical simulator. The results show that after adding 0.12% Ce＋0.06% La mixed rare earth,the alloy solidification microstructure is remarkably refined, the columnar grains become shorter and thinner, the growth pattern changes from linear growth into staggered growth,and the proportion of equiaxial grains increases up to 40 %. However,after adding 0.12% Ce＋0.12G La mixed rare earth,the cast thermoplasticity of the alloy seriously deteriorates in 850-1 200 ℃ temperature range,mainly due to a lot of Fe-Ni-Ce-La rare earth intergranular brittle phases generated at grain boundaries. These intergranular brittle phases weaken the grain boundary binding force and hinder the movement of the grain boundaries,deteriorating cast thermoplasticity of the alloy.
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Basic Information:
DOI：
Chinese Library Classification Number:TG132.11[一般工业技术—材料科学与工程]
Citation Information:
Effect of rare earth on solidification microstructure and cast thermoplasticity of Fe-36Ni invar alloy was studied through a vacuum induction furnace and a Gleeble--3800 thermal mechanical simulator. The results show that after adding 0.12% Ce＋0.06% La mixed rare earth,the alloy solidification microstructure is remarkably refined, the columnar grains become shorter and thinner, the growth pattern changes from linear growth into staggered growth,and the proportion of equiaxial grains increases up to 40 %. However,after adding 0.12% Ce＋0.12G La mixed rare earth,the cast thermoplasticity of the alloy seriously deteriorates in 850-1 200 ℃ temperature range,mainly due to a lot of Fe-Ni-Ce-La rare earth intergranular brittle phases generated at grain boundaries. These intergranular brittle phases weaken the grain boundary binding force and hinder the movement of the grain boundaries,deteriorating cast thermoplasticity of the alloy.
quote
| GB/T 7714-2015 | [1] YU Yan-chong, CHEN Wei-qing, ZHENG Hong-guang. Effect of Rare Earth on Solidification Microstructure and Cast Thermoplasticity of Fe-36Ni Invar Alloy[J]. Rare Metals and Cemented Carbides, 2014(5): 20-23. |
| MLA | [1] YU Yan-chong, et al., "Effect of Rare Earth on Solidification Microstructure and Cast Thermoplasticity of Fe-36Ni Invar Alloy." Rare Metals and Cemented Carbides, no. 5, 2014, pp. 20-23. |
| APA | [1] YU Yan-chong, CHEN Wei-qing, & ZHENG Hong-guang. (2014). Effect of Rare Earth on Solidification Microstructure and Cast Thermoplasticity of Fe-36Ni Invar Alloy. Rare Metals and Cemented Carbides(5), 20-23. |
| IEEE | [1] YU Yan-chong, CHEN Wei-qing, and ZHENG Hong-guang, "Effect of Rare Earth on Solidification Microstructure and Cast Thermoplasticity of Fe-36Ni Invar Alloy," Rare Metals and Cemented Carbides, no. 5, pp. 20-23, 2014. keywords: {Fe-36Ni invar alloy;solidification microstructure;rare earth intergranular brittle phase;cast thermoplasticity} |