J. Mater. Sci. Technol. ›› 2020, Vol. 40: 158-167.DOI: 10.1016/j.jmst.2019.09.025
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B.W. Dong, S.H. Wang, Z.Z. Dong, J.C. Jie*(), T.M. Wang, T.J. Li
Received:
2019-07-23
Revised:
2019-09-02
Accepted:
2019-09-03
Published:
2020-03-01
Online:
2020-04-01
Contact:
Jie J.C.
B.W. Dong, S.H. Wang, Z.Z. Dong, J.C. Jie, T.M. Wang, T.J. Li. Novel insight into dry sliding behavior of Cu-Pb-Sn in-situ composite with secondary phase in different morphology[J]. J. Mater. Sci. Technol., 2020, 40: 158-167.
Fig. 2. 3D shapes of the SPPs in the Cu-24Pb-xSn alloys: (a) Cu-24Pb alloy; (b) Cu-24Pb-2Sn alloy; (c) Cu-24Pb-4Sn alloy; (d) Cu-24Pb-6Sn alloy; (e) EDS results of Cu-24Pb-6Sn alloy.
Fig. 3. Surface topographies of (a) Cu-24Pb, (b) Cu-24Pb-2Sn, (c) Cu-24Pb-4Sn and (d) Cu-24Pb-6Sn alloys by confocal laser microscopy; (e) μ curves of the Cu-24Pb-xSn alloys; (f) surface profiles of the Cu-24Pb-xSn alloys.
Sn content (wt%) | λ | $\bar{μ}$ | ω | H (HBS) |
---|---|---|---|---|
0 | 77454.784 | 0.334 | 1.369 | 30.68 |
2 | 59091.730 | 0.211 | 0.148 | 44.72 |
4 | 61955.014 | 0.195 | 0.135 | 51.04 |
6 | 53858.770 | 0.182 | 0.116 | 59.34 |
Table 1 Values of λ, $\bar{μ}$, ω and H in the Cu-24Pb-xSn alloys during dry sliding wear tests.
Sn content (wt%) | λ | $\bar{μ}$ | ω | H (HBS) |
---|---|---|---|---|
0 | 77454.784 | 0.334 | 1.369 | 30.68 |
2 | 59091.730 | 0.211 | 0.148 | 44.72 |
4 | 61955.014 | 0.195 | 0.135 | 51.04 |
6 | 53858.770 | 0.182 | 0.116 | 59.34 |
Fig. 4. Backscatter photographs of the Cu-24Pb-xSn alloys’ friction surface: (a) Cu-24Pb alloy; (b) Cu-24Pb-2Sn alloy; (c) Cu-24Pb-4Sn alloy; (d) Cu-24Pb-6Sn alloy; (e, f) map scanning results of the friction surface in Cu-24Pb-6Sn alloy by EPMA.
Fig. 6. SEM images of the Cu-24Pb-xSn alloys’ fracture surface: (a) Cu-24Pb; (b) Cu-24Pb-2Sn; (c) Cu-24Pb-4Sn; (d) Cu-24Pb-6Sn. (e) EDS results of the Cu-24Pb-xSn alloys’ fracture surfaces.
Fig. 7. (a-d) Map scanning results of Cu-24Pb-6Sn alloy’s fracture surface, (e) DSC curves of Cu-24Pb and Cu-24Pb-6Sn alloys and (f) UTS and δ of the Cu-24Pb-xSn alloys.
Sn content (wt%) | H (HBS) | $\bar{μ}$ | ω |
---|---|---|---|
0 | 37.64 | 0.721 | 4.216 |
2 | 54.41 | 0.609 | 1.742 |
4 | 67.55 | 0.678 | 4.816 |
6 | 77.72 | 0.582 | 2.660 |
Table 2 Values of $\bar{μ}$ and ω in the Cu-xSn alloys.
Sn content (wt%) | H (HBS) | $\bar{μ}$ | ω |
---|---|---|---|
0 | 37.64 | 0.721 | 4.216 |
2 | 54.41 | 0.609 | 1.742 |
4 | 67.55 | 0.678 | 4.816 |
6 | 77.72 | 0.582 | 2.660 |
Fig. 10. SEM images of (a, b) Cu-24Pb-6Sn alloy’s and (c, d) Cu-24Pb alloy’s friction surface; (e, f) Map scanning results of the friction surface in Cu-24Pb alloy by EPMA.
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