Acta Metallurgica Sinica (English Letters) ›› 2019, Vol. 32 ›› Issue (11): 1337-1345.DOI: 10.1007/s40195-019-00911-5
Special Issue: 2019年腐蚀专辑-2
• Orginal Article • Previous Articles Next Articles
Ruo-Yu Liu1, Ran-Gan He1, Yan-Xia Chen1, Sheng-Feng Guo1()
Received:
2018-11-01
Revised:
2019-04-10
Online:
2019-11-10
Published:
2019-11-10
Ruo-Yu Liu, Ran-Gan He, Yan-Xia Chen, Sheng-Feng Guo. Effect of Ag on the Microstructure, Mechanical and Bio-corrosion Properties of Fe-30Mn Alloy[J]. Acta Metallurgica Sinica (English Letters), 2019, 32(11): 1337-1345.
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Fig. 2 SEM backscattered electron images of Fe-30Mn-1Ag a; Fe-30Mn-2Ag b; Fe-30Mn-5Ag c; Fe-30Mn-10Ag alloys d; the TEM bright field image e, the SAED pattern f of the bright particles for Fe-30Mn-5Ag alloy
Samples | OCP (V) | Ecorr (V) | icorr (μA/cm2) | Rp (Ω/cm2) | P (mm/a) | χ (m3/kg) |
---|---|---|---|---|---|---|
Fe-30Mn-1Ag | -?0.79 | -?1.09 | 7.33 | 3.33?×?105 | 0.088 | 2.16?×?10-6 |
Fe-30Mn-2Ag | -?0.79 | -?1.06 | 9.17 | 2.17?×?105 | 0.113 | 2.00?×?10-6 |
Fe-30Mn-5Ag | -?0.80 | -?1.04 | 10.52 | 1.73?×?105 | 0.143 | 6.06?×?10-7 |
Fe-30Mn-10Ag | -?0.80 | -?1.15 | 7.40 | 2.42?×?105 | 0.128 | 1.03?×?10-6 |
Table 1 Electrochemical corrosion parameters and magnetic susceptibility of Fe-Mn-XAg alloys
Samples | OCP (V) | Ecorr (V) | icorr (μA/cm2) | Rp (Ω/cm2) | P (mm/a) | χ (m3/kg) |
---|---|---|---|---|---|---|
Fe-30Mn-1Ag | -?0.79 | -?1.09 | 7.33 | 3.33?×?105 | 0.088 | 2.16?×?10-6 |
Fe-30Mn-2Ag | -?0.79 | -?1.06 | 9.17 | 2.17?×?105 | 0.113 | 2.00?×?10-6 |
Fe-30Mn-5Ag | -?0.80 | -?1.04 | 10.52 | 1.73?×?105 | 0.143 | 6.06?×?10-7 |
Fe-30Mn-10Ag | -?0.80 | -?1.15 | 7.40 | 2.42?×?105 | 0.128 | 1.03?×?10-6 |
Fig. 5 Corrosion morphologies of Fe-30Mn-1Ag a, Fe-30Mn-2Ag b, Fe-30Mn-5Ag c, Fe-30Mn-10Ag d alloys after potentiodynamic polarization test up to pitting
Fig. 7 Corrosion morphologies of Fe-30Mn-1Ag a, Fe-30Mn-2Ag b, Fe-30Mn-5Ag c, Fe-30Mn-10Ag d alloys after 12-week immersion and the EDS of corrosion products
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