J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (2): 299-310.DOI: 10.1016/j.jmst.2017.06.013
Special Issue: Corrosion in 2018; Biomaterials 2018
• Orginal Article • Previous Articles Next Articles
Jian-Xing Lia, Yuan Zhanga, Jing-Yuan Lia(), Jian-Xin Xieb
Received:
2017-03-06
Revised:
2017-05-25
Accepted:
2017-06-08
Online:
2018-02-10
Published:
2018-02-10
Jian-Xing Li, Yuan Zhang, Jing-Yuan Li, Jian-Xin Xie. Effect of trace HA on microstructure, mechanical properties and corrosion behavior of Mg-2Zn-0.5Sr alloy[J]. J. Mater. Sci. Technol., 2018, 34(2): 299-310.
Alloy | Mg | Zn | Sr | Al | Cu | Fe | Ni | HA |
---|---|---|---|---|---|---|---|---|
Pure | Bal. | / | / | 0.056 | <0.001 | 0.022 | <0.001 | / |
Mg-2Zn-0.5Sr | Bal. | 2.03 | 0.54 | 0.074 | <0.001 | 0.0033 | <0.001 | / |
Mg-2Zn-0.5Sr/0.1HA | Bal. | 2.10 | 0.54 | 0.063 | <0.001 | 0.0026 | <0.001 | 0.0251 |
Mg-2Zn-0.5Sr/0.3HA | Bal. | 1.96 | 0.60 | 0.074 | <0.001 | 0.0033 | <0.001 | 0.2359 |
Table 1 Actual chemical composition of the alloys (wt%).
Alloy | Mg | Zn | Sr | Al | Cu | Fe | Ni | HA |
---|---|---|---|---|---|---|---|---|
Pure | Bal. | / | / | 0.056 | <0.001 | 0.022 | <0.001 | / |
Mg-2Zn-0.5Sr | Bal. | 2.03 | 0.54 | 0.074 | <0.001 | 0.0033 | <0.001 | / |
Mg-2Zn-0.5Sr/0.1HA | Bal. | 2.10 | 0.54 | 0.063 | <0.001 | 0.0026 | <0.001 | 0.0251 |
Mg-2Zn-0.5Sr/0.3HA | Bal. | 1.96 | 0.60 | 0.074 | <0.001 | 0.0033 | <0.001 | 0.2359 |
Solution | Ion concentration (mmol/L) | |||||||
---|---|---|---|---|---|---|---|---|
Na+ | K+ | Ca2+ | Mg2+ | HCO3- | Cl- | HPO42- | SO42- | |
Plasma | 142.0 | 5.0 | 2.5 | 1.5 | 27.0 | 103.0 | 1.0 | 0.5 |
Kokubo(c-SBF) | 142.0 | 5.0 | 2.5 | 1.5 | 4.2 | 147.8 | 1.0 | 0.5 |
Table 2 Chemical composition of the Kokubo simulated body fluid (SBF) compared to that of human blood plasma.
Solution | Ion concentration (mmol/L) | |||||||
---|---|---|---|---|---|---|---|---|
Na+ | K+ | Ca2+ | Mg2+ | HCO3- | Cl- | HPO42- | SO42- | |
Plasma | 142.0 | 5.0 | 2.5 | 1.5 | 27.0 | 103.0 | 1.0 | 0.5 |
Kokubo(c-SBF) | 142.0 | 5.0 | 2.5 | 1.5 | 4.2 | 147.8 | 1.0 | 0.5 |
Alloy | Region A | Region B | Region C | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mg | Zn | Sr | Ca | Mg | Zn | Sr | Ca | Mg | Zn | Sr | Ca | |
Mg-2Zn-0.5Sr | 98.25 | 1.75 | - | - | 73.33 | 6.78 | 19.89 | - | - | - | - | |
Mg-2Zn-0.5Sr/0.1HA | 98.06 | 1.94 | - | - | 75.92 | 5.61 | 13.18 | 5.29 | 89.41 | 1.93 | 5.92 | 2.74 |
Mg-2Zn-0.5Sr/0.3HA | 98.05 | 1.95 | - | - | 60.54 | 4.01 | 23.66 | 11.79 | 70.72 | 2.91 | 18.53 | 7.84 |
Mg-2Zn-0.5Sr/0.3HA | 98.05 | 1.95 | - | - | 60.54 | 4.01 | 23.66 | 11.79 | 70.72 | 2.91 | 18.53 | 7.84 |
Table 3 Composition of different regions in the microstructure of the specimens in wt% (marked as A, B and C in Fig. 2) obtained by energy-dispersive X-ray spectroscopy.
Alloy | Region A | Region B | Region C | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mg | Zn | Sr | Ca | Mg | Zn | Sr | Ca | Mg | Zn | Sr | Ca | |
Mg-2Zn-0.5Sr | 98.25 | 1.75 | - | - | 73.33 | 6.78 | 19.89 | - | - | - | - | |
Mg-2Zn-0.5Sr/0.1HA | 98.06 | 1.94 | - | - | 75.92 | 5.61 | 13.18 | 5.29 | 89.41 | 1.93 | 5.92 | 2.74 |
Mg-2Zn-0.5Sr/0.3HA | 98.05 | 1.95 | - | - | 60.54 | 4.01 | 23.66 | 11.79 | 70.72 | 2.91 | 18.53 | 7.84 |
Mg-2Zn-0.5Sr/0.3HA | 98.05 | 1.95 | - | - | 60.54 | 4.01 | 23.66 | 11.79 | 70.72 | 2.91 | 18.53 | 7.84 |
Alloy | Ecorr (mV/SCE) | Icorr (μA cm-2) | Ebd (mV) | Pi (mm/year) | βC (mV/decade) | βa (mV/decade) | RP (kΩ cm2) |
---|---|---|---|---|---|---|---|
Pure Mg | -1719 | 288.4 | -1549 | 6.6 | -369.5 | 431.3 | 0.30 |
Mg-2Zn-0.5Sr | -1724 | 479.8 | -1549 | 11.0 | -433.8 | 280.1 | 0.15 |
Mg-2Zn-0.5Sr/0.1HA | -1696 | 290.8 | -1551 | 6.6 | -388.5 | 274.3 | 0.24 |
Mg-2Zn-0.5Sr/0.3HA | -1660 | 280.8 | -1548 | 6.2 | -367.3 | 253.9 | 0.24 |
Table 4 Electrochemical parameters of the samples in SBF obtained from the polarization test.
Alloy | Ecorr (mV/SCE) | Icorr (μA cm-2) | Ebd (mV) | Pi (mm/year) | βC (mV/decade) | βa (mV/decade) | RP (kΩ cm2) |
---|---|---|---|---|---|---|---|
Pure Mg | -1719 | 288.4 | -1549 | 6.6 | -369.5 | 431.3 | 0.30 |
Mg-2Zn-0.5Sr | -1724 | 479.8 | -1549 | 11.0 | -433.8 | 280.1 | 0.15 |
Mg-2Zn-0.5Sr/0.1HA | -1696 | 290.8 | -1551 | 6.6 | -388.5 | 274.3 | 0.24 |
Mg-2Zn-0.5Sr/0.3HA | -1660 | 280.8 | -1548 | 6.2 | -367.3 | 253.9 | 0.24 |
Fig. 8. Corrosion rates of experimental materials calculated by the weight loss after 10 d of immersion and the Tafel curve in the SBF at (37 ± 1) °C.
Fig. 9. SEM and EDS of the surface of experimental materials after 10 d of immersion in the SBF at (37 ± 1) °C, for (a) pure Mg, (b) Mg-2Zn-0.5Sr, (c) Mg-2Zn-0.5Sr/0.1HA and (d) Mg-2Zn-0.5Sr/0.3HA.
Fig. 11. Three-dimensional corrosion morphology of the samples after corrosion product removal for (a) pure Mg, (b) Mg-2Zn-0.5Sr, (c) Mg-2Zn-0.5Sr/0.1HA and (d) Mg-2Zn-0.5Sr/0.3HA.
|
[1] | Lin Yuan, Jiangtao Xiong, Yajie Du, Jin Ren, Junmiao Shi, Jinglong Li. Microstructure and mechanical properties in the TLP joint of FeCoNiTiAl and Inconel 718 alloys using BNi2 filler [J]. J. Mater. Sci. Technol., 2021, 61(0): 176-185. |
[2] | Xiong-jie Gu, Wei-li Cheng, Shi-ming Cheng, Yan-hui Liu, Zhi-feng Wang, Hui Yu, Ze-qin Cui, Li-fei Wang, Hong-xia Wang. Tailoring the microstructure and improving the discharge properties of dilute Mg-Sn-Mn-Ca alloy as anode for Mg-air battery through homogenization prior to extrusion [J]. J. Mater. Sci. Technol., 2021, 60(0): 77-89. |
[3] | Qianqian Jin, Xiaohong Shao, Shijian Zheng, Yangtao Zhou, Bo Zhang, Xiuliang Ma. Interfacial dislocations dominated lateral growth of long-period stacking ordered phase in Mg alloys [J]. J. Mater. Sci. Technol., 2021, 61(0): 114-118. |
[4] | Hui Jiang, Dongxu Qiao, Wenna Jiao, Kaiming Han, Yiping Lu, Peter K. Liaw. Tensile deformation behavior and mechanical properties of a bulk cast Al0.9CoFeNi2 eutectic high-entropy alloy [J]. J. Mater. Sci. Technol., 2021, 61(0): 119-124. |
[5] | Jincheng Wang, Yujing Liu, Chirag Dhirajlal Rabadia, Shun-Xing Liang, Timothy Barry Sercombe, Lai-Chang Zhang. Microstructural homogeneity and mechanical behavior of a selective laser melted Ti-35Nb alloy produced from an elemental powder mixture [J]. J. Mater. Sci. Technol., 2021, 61(0): 221-233. |
[6] | Qin Xu, Dezhi Chen, Chongyang Tan, Xiaoqin Bi, Qi Wang, Hongzhi Cui, Shuyan Zhang, Ruirun Chen. NbMoTiVSix refractory high entropy alloys strengthened by forming BCC phase and silicide eutectic structure [J]. J. Mater. Sci. Technol., 2021, 60(0): 1-7. |
[7] | K.J. Tan, X.G. Wang, J.J. Liang, J. Meng, Y.Z. Zhou, X.F. Sun. Effects of rejuvenation heat treatment on microstructure and creep property of a Ni-based single crystal superalloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 206-215. |
[8] | Hui Xiao, Manping Cheng, Lijun Song. Direct fabrication of single-crystal-like structure using quasi-continuous-wave laser additive manufacturing [J]. J. Mater. Sci. Technol., 2021, 60(0): 216-221. |
[9] | Xing Zhou, Jingrui Deng, Changqing Fang, Wanqing Lei, Yonghua Song, Zisen Zhang, Zhigang Huang, Yan Li. Additive manufacturing of CNTs/PLA composites and the correlation between microstructure and functional properties [J]. J. Mater. Sci. Technol., 2021, 60(0): 27-34. |
[10] | Zijuan Xu, Zhongtao Li, Yang Tong, Weidong Zhang, Zhenggang Wu. Microstructural and mechanical behavior of a CoCrFeNiCu4 non-equiatomic high entropy alloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 35-43. |
[11] | B.N. Du, Z.Y. Hu, L.Y. Sheng, D.K. Xu, Y.X. Qiao, B.J. Wang, J. Wang, Y.F. Zheng, T.F. Xi. Microstructural characteristics and mechanical properties of the hot extruded Mg-Zn-Y-Nd alloys [J]. J. Mater. Sci. Technol., 2021, 60(0): 44-55. |
[12] | H. Niu, H.C. Jiang, M.J. Zhao, L.J. Rong. Effect of interlayer addition on microstructure and mechanical properties of NiTi/stainless steel joint by electron beam welding [J]. J. Mater. Sci. Technol., 2021, 61(0): 16-24. |
[13] | Yanxin Qiao, Daokui Xu, Shuo Wang, Yingjie Ma, Jian Chen, Yuxin Wang, Huiling Zhou. Effect of hydrogen charging on microstructural evolution and corrosion behavior of Ti-4Al-2V-1Mo-1Fe alloy [J]. J. Mater. Sci. Technol., 2021, 60(0): 168-176. |
[14] | Yunsheng Wu, Xuezhi Qin, Changshuai Wang, Lanzhang Zhou. Microstructural evolution and its influence on the impact toughness of GH984G alloy during long-term thermal exposure [J]. J. Mater. Sci. Technol., 2021, 60(0): 61-69. |
[15] | Qiang Zhu, Gang Chen, Chuanjie Wang, Lukuan Cheng, Heyong Qin, Peng Zhang. Microstructure evolution and mechanical property characterization of a nickel-based superalloy at the mesoscopic scale [J]. J. Mater. Sci. Technol., 2020, 47(0): 177-189. |
Viewed | ||||||
Full text |
|
|||||
Abstract |
|
|||||