In the present research, high chromium cast irons (HCCIs) were prepared using the lost foam casting (LFC) process. To improve the wear resistance of the high chromium cast irons (HCCIs), mechanical vibration was employed during the solidification of the HCCIs. The effects of vibration frequency on the microstructure and performance of the HCCIs under as-cast, as-quenched and as-tempered conditions were investigated. The results indicated that the microstructures of the LFC-produced HCCIs were refined due to the introduction of mechanical vibration, and the hardness was improved compared to that of the alloy without vibration. However, only a slight improvement in hardness was found in spite of the increase of vibration frequency. In contrast, the impact toughness of the as-tempered HCCIs increased with an increase in the vibration frequency. In addition, the wear resistance of the HCCIs was improved as a result of the introduction of vibration and increased with an increase in the vibration frequency.
Shivkumar S, Yao X, and Makhlouf M. Polymer-melt interactions during casting formation in the lost foam process. Scripta Metal. Mater., 1995, 33(1): 39–46.
Xiao Botao, Fan Zitian, Jiang Wenming, et al. Microstructure and Mechanical Properties of Ductile Cast Iron in Lost Foam Casting with Vibration. Journal of Iron and Steel Research, International, 2014, 21(11): 1049–1054.
Mehdi Hejazi M, Divandari M, and Taghaddos E. Effect of copper insert on the microstructure of gray iron produced via lost foam casting. Materials & Design, 2009, 30(4): 1085–1092.
Li Fengjun, Shen Houfa and Liu Baicheng. Modeling of mold filling and solidification in lost foam casting. J. Materials Science and Technology, 2003, 19(5): 395–397.
Xiao Botao, Fan Zitian, Liu Xinwang. Grain refinement and hardness of grey cast iron in lost foam casting with mechanical vibration. Metalurgia International, 2013, 18(3): 16–18.
Zhao Zhong, Fan Zitian, Jiang Wenming, et al. Microstructural evolution of Mg9AlZnY alloy with vibration in lost foam casting during semi-solid isothermal heat treatment. Transactions of Nonferrous Metals Society of China, 2010, 20(3): 768–773.
Li Jiqiang, Fan Zitian, Wang Yuanqing, et al. Effects of vibration and alloying on microstructure and properties of AZ91D magnesium alloy via lost foam casting. The Chinese Journal of Nonferrous Metals, 2007, 17(7): 1047–1052. (In Chinese)
Abramov A, Abramov O, Bulgakov V, et al. Solidification of aluminum alloys under ultrasonic irradiation using water-cooled resonator. Materials Letter, 1998 37(1-2): 27–34.
Abu-Dheir Numan, Khraisheh Marwan, Saito Kozo, et al. Silicon morphology modification in the eutectic Al–Si alloy using mechanical mold vibration. Materials Science and Engineering A, 2005, 393: 109–117.
Kocatepe Kadir. Effect of low frequency vibration on porosity of LM25 and LM6 alloys. Materials & Design, 2007, 28(6): 1767–1775.
Zhi Xiaohui, Xing Jiandong, Fu Hanguang, et al. Effect of niobium on the as-cast microstructure of hypereutectic high chromium cast iron. Materials Letters, 2008, 62: 857–860.
Zhang Zhiguo, Yang Chengkai, Zhang Peng, et al. Microstructure and wear resistance of high chromium cast iron containing niobium. China Foundry, 2014, 11(3): 179–184.
Tabrett C P and Sare I R. Effect of high temperature and subambient treatments on the matrix structure and abrasion resistance of a high-chromium white iron. Scripta Materialia, 1998, 38(12): 1747–1753.
Liu H, Sakamoto M, Nomura M, et al. Abrasion resistance of high Cr cast irons at an elevated temperature. Wear, 2001, 250: 71–75.
Llewellyn R J, Yick S K and Dolman K F.. Scouring erosion resistance of metallic materials used in slurry pump service. Wear, 2004, 256: 592–599.
Wiengmoon A, Chairuangsri T, Brown A, et al. Microstructural and crystallographical study of carbides in 30wt.% Cr cast irons. Acta Materialia, 2005, 53: 4143–4154.
Male, born in 1963, Ph.D. Professor. His research interests mainly focus on abrasion metallic materials and metal matrix composites, special functional metallic materials, tribological research and biomedical materials.
This work was financially supported by the Science and Technology Plan Project of Guangdong province, China (2015B090926012, 2014B090901001034, 2014YT02C036, 2013B090500106, 2013CX/G18) and the Scientific Research and Innovation Project of Jinan University (No. 21615437).
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Zou, Wq., Zhang, Zg., Yang, H. et al. Effect of vibration frequency on microstructure and performance of high chromium cast iron prepared by lost foam casting. China Foundry 13, 248–255 (2016). https://doi.org/10.1007/s41230-016-6037-3
- high chromium cast iron
- vibration frequency
- lost foam casting
- wear resistance