Co-Cr-W alloy was prepared by powder metallurgy technology. The effect of heat treatment temperature on the microstructure and mechanical properties of the prepared alloy was investigated by SEM and EPMA, etc. The results show that the phases in Co-Cr-W alloy under the heat treatment condition of 1100 ℃ with holding time of 4 h and cooling without power is the same as before heat treatment. The matrix of alloy is composed of γ-Co with FCC structure, ε-Co with HCP structure, and the reinforced phases include M6C and M23C6 carbides. The matrix of Co-Cr-W alloy under the heat treatment condition of 1150-1250 ℃ × 4 h is composed of single γ-Co in FCC structure and reinforced phases include M6C carbides and M23C6 carbides. When the heat treatment temperature is increased from 1100 ℃ to 1200 ℃, the blocky M6C carbides and granular M23C6 carbides grow up, meanwhile ε-Co phases are reduced and then disappeared, alloy density is improved, and tensile strength is increased. However, when the heat treatment temperature is above 1200 ℃, the performance of Co-Cr-W alloy has no obvious change, and the prepared alloy under the heat treatment condition of 1200 ℃ × 4 h achieves the optimal property with the average hardness of 63.5HRC and tensile strength of 408 MPa.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Effect of Heat Treatment Temperature on Microstructure and Mechanical Properties of Co-Cr-W Alloy


    Beteiligte:
    CUI Yu (Autor:in) / SUN Yuan (Autor:in) / HOU Xingyu (Autor:in) / ZHANG Hongyu (Autor:in) / XUN Shuling (Autor:in) / HOU Guichen (Autor:in) / LIU Wenqiang (Autor:in) / ZHOU Yizhou (Autor:in)


    Erscheinungsdatum :

    2018




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Effect of heat treatment on duplex microstructure and mechanical properties of PM TiAl alloy

    Meike, S. / Lijing, Z. / Hu, Z. et al. | British Library Online Contents | 2013


    Effect of Heat Treatment on Microstructure and Mechanical Properties for a Ni~3Al Base Single Crystal Alloy DDIC6

    Kong, Z. G. / Ji, L. / Li, S. S. et al. | British Library Conference Proceedings | 2007


    Influence of heat treatment on mechanical properties and microstructure of EN AW 6082 aluminum alloy

    Jadhav, Shrikant / Singh, Rajkumar / Pawar, Vinayak et al. | IEEE | 2017


    Research progresses in effect of heat treatment on microstructure and properties of GH2132 alloy

    ZHAO Zhen / ZHANG Shiqing / LI Fang et al. | DOAJ | 2023

    Freier Zugriff