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Volume 32 Issue 6
Aug.  2021
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Article Contents
ZHANG Li-min, LIU Jun-bo, SUN Dong-bo, WANG Shu-ming. Microstructure and failure analysis of Fe-Ni based alloy rollers produced by plasma cladding[J]. Chinese Journal of Engineering, 2010, 32(6): 777-781. doi: 10.13374/j.issn1001-053x.2010.06.014
Citation: ZHANG Li-min, LIU Jun-bo, SUN Dong-bo, WANG Shu-ming. Microstructure and failure analysis of Fe-Ni based alloy rollers produced by plasma cladding[J]. Chinese Journal of Engineering, 2010, 32(6): 777-781. doi: 10.13374/j.issn1001-053x.2010.06.014

Microstructure and failure analysis of Fe-Ni based alloy rollers produced by plasma cladding

doi: 10.13374/j.issn1001-053x.2010.06.014
  • Received Date: 2009-09-21
  • Fe-Ni based high temperature wear-resistant powder was cladded on 45# round steel to obtain an Fe-Ni based alloy roller by plasma cladding.Scanning electric microscope,energy spectrometer and X-ray diffractometer were adopted to study the microstructure of the Fe-Ni based alloy coating and the failure surface of the Fe-Ni based alloy roller.It is shown that the morphology of the Fe-Ni based high-temperature wear-resistant coating is well and the morphology is planar crystal at the coating-substrate bonding,while the morphology becomes dendrite at the middle and the top of the coating.The γ-(Fe,Ni) content reduces following the bottom-middle-top order in the coating,but the (Cr,Fe)7C3 is just the opposite.The failure mechanism of the Fe-Ni based alloy roller is thermal fatigue cracking and grain wear.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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