Stress corrosion cracking and corrosion fatigue characterisation of MgZn1Ca0.3 (ZX10) in a simulated physiological environment

Jafari, Sajjad; Raman, R.K. Singh; Davies, Chris; Hofstetter, Joëlle; Uggowitzer, Peter J.; Löffler, Jörg F.

doi:10.1016/j.jmbbm.2016.09.033

Cited by 85 publications

(45 citation statements)

References 44 publications

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“…Mg alloys are reported to be susceptible to CF also in the corrosive human body fluids. The CF of Mg alloys, both in vitro [323,324] and in vivo [307], is also described elsewhere.…”

Section: Mechanisms Of Corrosion In Vivomentioning

confidence: 99%

“…Figure 28 [324] shows the S-N curves and the typical fractographs of a newly developed high-strength low-alloy Mg alloy, MgZn 1 Ca 0.3 (ZX10), processed at two different extrusion temperatures of 325 and 400 °C (named E325 and E400, respectively) and tested both in air and in m-SBF. While E325 has superior fatigue properties to E400 when tested in air due to a grain-boundary strengthening mechanism (106 and 81 MPa, respectively, at 10 7 cycles), both show similar fatigue strength of 60 MPa at 5 × 10 6 cycles when tested in m-SBF.…”

Section: Mechanisms Of Corrosion In Vivomentioning

confidence: 99%

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Corrosion of Metallic Biomaterials: A Review

2019

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Metallic biomaterials are used in medical devices in humans more than any other family of materials. The corrosion resistance of an implant material affects its functionality and durability and is a prime factor governing biocompatibility. The fundamental paradigm of metallic biomaterials, except biodegradable metals, has been “the more corrosion resistant, the more biocompatible.” The body environment is harsh and raises several challenges with respect to corrosion control. In this invited review paper, the body environment is analysed in detail and the possible effects of the corrosion of different biomaterials on biocompatibility are discussed. Then, the kinetics of corrosion, passivity, its breakdown and regeneration in vivo are conferred. Next, the mostly used metallic biomaterials and their corrosion performance are reviewed. These biomaterials include stainless steels, cobalt-chromium alloys, titanium and its alloys, Nitinol shape memory alloy, dental amalgams, gold, metallic glasses and biodegradable metals. Then, the principles of implant failure, retrieval and failure analysis are highlighted, followed by description of the most common corrosion processes in vivo. Finally, approaches to control the corrosion of metallic biomaterials are highlighted.

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“…Mg alloys are reported to be susceptible to CF also in the corrosive human body fluids. The CF of Mg alloys, both in vitro [323,324] and in vivo [307], is also described elsewhere.…”

Section: Mechanisms Of Corrosion In Vivomentioning

confidence: 99%

Section: Mechanisms Of Corrosion In Vivomentioning

confidence: 99%

Corrosion of Metallic Biomaterials: A Review

2019

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“…The aluminum-free Mg alloys, such as ZX50, WZ21 and WE43, were reported susceptible to SCC in m-SBF and confirmed by fracture morphology features of TGSCC and/or intergranular SCC (IGSCC) [ 31 ]. The Mg alloys containing biocompatible elements were also such as reported suffering from SCC in m-SBF, such as Zn- and Ca-containing Mg alloys MgZn1Ca0.3 (ZX10) [ 32 ], and MgZn3Ca1 (ZX31) [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Microstructure and Distribution of the Second Phase on the Stress Corrosion Cracking of Biomedical Mg-Zn-Zr-xSr Alloys

et al. 2018

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The stress corrosion cracking (SCC) properties of the bi-directional forged (BDF) Mg-4Zn-0.6Zr-xSr (ZK40-xSr, x = 0, 0.4, 0.8, 1.2, 1.6 wt %) alloys were studied by the slow strain rate tensile (SSRT) testing in modified simulated body fluid (m-SBF). The average grain size of the BDF alloys were approximately two orders of magnitude smaller than those of the as-cast alloys. However, grain refinement increased the hydrogen embrittlement effect, leading to a higher SCC susceptibility in the BDF ZK40-0/0.4Sr alloys. Apart from the grain refinements effect, the forging process also changed the distribution of second phase from the net-like shape along the grain boundary to a uniformly isolated island shape in the BDF alloys. The SCC susceptibility of the BDF ZK40-1.2/1.6Sr alloys were lower than those of the as-cast alloys. The change of distribution of the second phase suppressed the adverse effect of Sr on the SCC susceptibility in high Sr–containing magnesium alloys. The results indicated the stress corrosion behavior of magnesium alloys was related to the average grain size of matrix and the distribution and shape of the second phase.

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“…Very few investigations have reported on the fatigue and CF of Al-free Mg alloys in HBF/SBF [ 39 , 40 ]. The testing procedures for various alloys, other experimental parameters and main findings are summarized in Table 3 .…”

Section: Corrosion Fatigue (Cf) Of Mg Alloysmentioning

confidence: 99%

Resistance of Magnesium Alloys to Corrosion Fatigue for Biodegradable Implant Applications: Current Status and Challenges

Raman

Harandi

2017

Materials

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Magnesium (Mg) alloys are attracting increasing interest as the most suitable metallic materials for construction of biodegradable and bio-absorbable temporary implants. However, Mg-alloys can suffer premature and catastrophic fracture under the synergy of cyclic loading and corrosion (i.e., corrosion fatigue (CF)). Though Mg alloys are reported to be susceptible to CF also in the corrosive human body fluid, there are very limited studies on this topic. Furthermore, the in vitro test parameters employed in these investigations have not properly simulated the actual conditions in the human body. This article presents an overview of the findings of available studies on the CF of Mg alloys in pseudo-physiological solutions and the employed testing procedures, as well as identifying the knowledge gap.

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Stress corrosion cracking and corrosion fatigue characterisation of MgZn1Ca0.3 (ZX10) in a simulated physiological environment

Cited by 85 publications

References 44 publications

Corrosion of Metallic Biomaterials: A Review

Corrosion of Metallic Biomaterials: A Review

Effect of the Microstructure and Distribution of the Second Phase on the Stress Corrosion Cracking of Biomedical Mg-Zn-Zr-xSr Alloys

Resistance of Magnesium Alloys to Corrosion Fatigue for Biodegradable Implant Applications: Current Status and Challenges

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