Desulphurization during VIM Refining Ni-base Superalloy using CaO Crucible

J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (01): 69-72.

• Research Articles • Previous Articles Next Articles

Desulphurization during VIM Refining Ni-base Superalloy using CaO Crucible

Jianping NIU, Kenu YANG, Tao JIN, Xiaofeng SUN, Hengrong GUAN, Zhuangqi HU

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Received:1900-01-01 Revised:1900-01-01 Online:2003-01-28 Published:2009-10-10
Contact: Jianping NIU

Abstract

Abstract: The variation of S content during VIM refining Ni-base superalloy using CaO crucible was studied. It was found that the desulphurization process could not be carried out by only using CaO crucible. The role of Al addition to desulphurization was also studied. Combining with the results of XRD and composition analysis of the CaO crucible, the mechanism of desulphurization was proposed. Thermodynamical calculation about the reaction between the interface of CaO crucible and liquid metal has been discussed. This work indicated that under proper refining technology the S content in the liquid Ni-base alloy could be reduced from 3×10-5 to 2×10-6-4×10-6.

Key words: Ni-base superalloy, CaO crucible, VIM, Desulphurization

Jianping NIU, Kenu YANG, Tao JIN, Xiaofeng SUN, Hengrong GUAN, Zhuangqi HU. Desulphurization during VIM Refining Ni-base Superalloy using CaO Crucible[J]. J Mater Sci Technol, 2003, 19(01): 69-72.

[1]	Xinguang Wang, Guoming Han, Chuanyong Cui, Shuai Guan, Jinguo Li, Guichen Hou, Yizhou Zhou, Xiaofeng Sun. On the γ′ precipitates of the normal and inverse Portevin-Le Châtelier effect in a wrought Ni-base superalloy [J]. J. Mater. Sci. Technol., 2019, 35(1): 84-87.
[2]	Shuang Gao, Yizhou Zhou, Zhi-Quan Liu, Tao Jin. Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy [J]. J. Mater. Sci. Technol., 2018, 34(5): 806-810.
[3]	Yao Wang, Junsong Wang, Jiasheng Dong, Aimin Li, Zhijun Li, Guang Xie, Langhong Loua. Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot [J]. J. Mater. Sci. Technol., 2018, 34(12): 2439-2446.
[4]	Youliang Cheng, Lu Yang, Tao Luo, Changqing Fang, Jian Su, Jian Hui. Preparation and Characterization of Mesophase Pitch via Co-Carbonization of Waste Polyethylene/Petroleum Pitch [J]. J. Mater. Sci. Technol., 2015, 31(8): 857-863.
[5]	Y.J. Duan, B. Chen, Y.C. Ma, K. Liu. Kinetics of Al Evaporation from Liquid U-Al Alloys in Vacuum Induction Melting [J]. J. Mater. Sci. Technol., 2015, 31(4): 423-426.
[6]	Chen Bingqing, Xiong Huaping, Sun Bingbing, Tang Siyi, Guo Shaoqing, Zhang Xuejun. Microstructure Evolution and Tensile Properties of Ti₃Al/Ni-based Superalloy Welded Joint [J]. J. Mater. Sci. Technol., 2014, 30(7): 715-721.
[7]	Ali Nazari Shadi Riahi. Effects of CuO Nanoparticles on Microstructure, Physical, Mechanical and Thermal Properties of Self-Compacting Cementitious Composites [J]. J Mater Sci Technol, 2011, 27(1): 81-92.
[8]	Enze Liu,Shuchen Sun,Ganfeng Tu,Zhi Zheng,Xiurong Guan,Lingfeng Zhang. Tensile and Fracture Behavior of DZ68 Ni-base Superalloy [J]. J Mater Sci Technol, 2009, 25(06): 727-730.
[9]	Tan Zhao,Dong Wang,Jian Zhang,Guang Chen,Langhong Lou. Formation of Re-containing Carbides in a Second Generation Directionally Solidi¯ed Ni Base Superalloy [J]. J Mater Sci Technol, 2009, 25(03): 361-364.
[10]	Byung-Hui Choi, Byung-Ki Choi. Evaluation of Mechanical Properties According to Nb Content of High Strength Steel Manufactured in VIM [J]. J Mater Sci Technol, 2008, 24(05): 793-796.
[11]	Hua WEI, Guichen HOU, Xiaofeng SUN, Qi ZHENG, Hengrong GUAN, Zhuangqi HU. XPS and PAT Study on NiAl Phase Formed in a Superalloy by Pack Cementation [J]. J Mater Sci Technol, 2006, 22(06): 785-788.
[12]	S.K.Sadrnezhaad, S.Badakhshan Raz. Ingredient Losses during Melting Binary Ni-Ti Shape Memory Alloys [J]. J Mater Sci Technol, 2005, 21(04): 484-488.
[13]	Jieshan HOU, Jianting GUO, Lanzhang ZHOU, Zhijun LI. Development of a Nickel-base Cast Superalloy with High Strength and Superior Creep Properties [J]. J Mater Sci Technol, 2005, 21(03): 347-352.
[14]	Yingdan ZHU, Hua TAN, Jihui WANG. Mold Filling Analysis in Vacuum Infusion Molding Process Based on a High-Permeable Medium [J]. J Mater Sci Technol, 2003, 19(05): 467-471.
[15]	LIU Yuesheng ZHAO Xianguo LIU Zhizhong XIE Xishan Beijing Institute of Aeronautical Materials,100095,China. University of Science and Technology Beijing,100083,China.To whom correspondence should be addressed.. Weakening Mechanisms of Platelike σ Phase on Ni-base Superalloys [J]. J Mater Sci Technol, 1990, 6(5): 319-324.

Desulphurization during VIM Refining Ni-base Superalloy using CaO Crucible

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments