Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11008884 | Surface and Coatings Technology | 2019 | 8 Pages |
Abstract
In this study, oxide dispersion strengthened (ODS) layers with different Y2O3 addition were cladded on China Low Activation Martensitic (CLAM) steel to improve its mechanical strength, micro-hardness and high-temperature behavior. The results show that fine surface morphologies can be observed in cladding zones. In cladding layers, the Fe, Cr, W, Y, Ti elements was discriminated by the scanning electron microscope (SEM) with energy-dispersive spectrometer (EDS) and the most stable Y-Ti oxide complexes Y2Ti2O7 phase were analyzed by X-ray diffraction (XRD). The micro-hardness of ODS layers are higher than that of CLAM steel. The CLAM steel with 2â¯wt% Y2O3 addition ODS layer possesses an average tensile strength of 840â¯MPa which is 166â¯MPa higher than that of CLAM steel. It is suggested that the dispersion strengthening of oxide particles in ODS layer contributed to the increased strength.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xianfen Li, Haojie Chu, Yuanting Chen, Peng Hua, Guoping Wang, Weiqing Kong, Jun Chen, Yucheng Wu, Wei Zhou,