Abstract
The formation and growth of thermal fatigue crack in chromium wear resistant cast iron was investigated, and the effect of hot deformation on the crack was analyzed by means of optical microscope and scanning electron microscope and high frequency induction thermal fatigue tester. The results show that eutectic carbide is the main location and passage for initiation and extension of thermal fatigue cracks, hot deformation can improve the eutectic carbide’s morphology and distribution, inhibit the generation and propagation of thermal fatigue cracks. In the experiment, the propagation rate of thermal fatigue crack reduces with the quantity of hot deformation increasing, which was analyzed in the point view of the activation energy of crack propagation.
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References
Yuichiro Sato. On the Properties and Application of Forged White Cast Iron [J]. Trans of Japan Metals Inst, 1981, 23 (8): 702–709.
Wadsworth J. The Development of Ultrafine Super Plastic Structure in White Cast Irons [J]. Material in Engineering Application, 1979, 7(1) 143–151.
Chakrabarti A K. Hot Forging of White Cast Irons [J]. Trans Indian Institute of Metals, 1980, 33(6): 467–473.
LI Wo-guang. The Influence of Forging on the Structure and Properties of Some Manganese White Cast Irons [J]. Cast Metals, 1989, 12(2): 62–67.
SUN Ai-xue, ZHOU Hui-hua, WU Yi-gui. The Plastic Working of White Cast Iron and Its Mechanism [J]. Iron and Steel, 1994, 29(3): 53–55 (in Chinese).
XING Shu-ming, LIU Jian-hua. The Behavior of Carbide in White Cast Iron During Hot-Deformation [J]. Iron and Steel, 1995, 30(2): 58–60 (in Chinese).
CUI Ming-xun, LIU Wei, ZHAO Pin. Study of the Mechanism on the Formation and Propagation of Thermal Fatigue Crack in 60CrMnMo Steel [J]. Iron and Steel, 1994, 29(11): 39–41 (in Chinese).
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Foundation Item: Item Sponsored by Guiding Program of Science and Technology Research of Jilin Province of China (20000513)
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Chang, Lm., Liu, Jh. Effect of Hot Deformation on Formation and Growth of Thermal Fatigue Crack in Chromium Wear Resistant Cast Iron. J. Iron Steel Res. Int. 13, 36–39 (2006). https://doi.org/10.1016/S1006-706X(06)60023-X
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DOI: https://doi.org/10.1016/S1006-706X(06)60023-X