Xishu Wang, Lina Zhang, Yanping Zeng,  and Xishan Xie, SEM in-situ investigation on fatigue cracking behavior of P/M Rene95 alloy with surface inclusions, J. Univ. Sci. Technol. Beijing, 13(2006), No. 3, pp. 244-249. https://doi.org/10.1016/S1005-8850(06)60052-2
Cite this article as:
Xishu Wang, Lina Zhang, Yanping Zeng,  and Xishan Xie, SEM in-situ investigation on fatigue cracking behavior of P/M Rene95 alloy with surface inclusions, J. Univ. Sci. Technol. Beijing, 13(2006), No. 3, pp. 244-249. https://doi.org/10.1016/S1005-8850(06)60052-2
Materials

SEM in-situ investigation on fatigue cracking behavior of P/M Rene95 alloy with surface inclusions

+ Author Affiliations
  • The low-cycle fatigue behavior of powder metallurgy Rene95 alloy containing surface inclusions was investigated by in-situ observation with scanning electron microscopy (SEM). The process of fatigue crack initiation and early stage of propagation behavior indicates that fatigue crack mainly occurs at the interface between the inclusion and the matrix. The effect of inclusion on the fatigue crack initiation and the early stage of crack growth was very obvious. The fatigue crack growth path in the matrix is similar to the shape of inclusion made on the basis of fatigue fracture image analysis. The empiric relation between the surface and inside crack growth length, near a surface inclusion, can be expressed. Therefore, the fatigue crack growth rate or life of P/M Rene95 alloy including the inclusions can be evaluated on the basis of the measurable surface crack length parameter. In addition, the effect of two inclusions on the fatigue crack initiation behavior was investigated by the in-situ observation with SEM.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article Views(195) PDF Downloads(14) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return