Ballistic Evaluation of Magnesium Alloy AZ31B

Jones, Tyrone L.; DeLorme, R.; Burkins, Matthew S.; Gooch, William A.

doi:10.21236/ada466839

Cited by 39 publications

(24 citation statements)

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“…8 Based on a previous study, Pb can enhance the energy absorption of magnesium alloy 7 because the properties of Pb, such as high density and high ductility, enhance energy absorption. The composition percentage of AZ31B is shown in Table 1 and follows the standard ASTM B90/ B90M-12:2012.…”

Section: Methodsmentioning

confidence: 99%

“…7 Magnesium alloy offers a unique combination of high tensile strength (up to 410 MPa), low density (up to 1.8 g/cm 3 ), and superior shock absorbency 100 times greater than aluminum alloys. 8 Magnesium also has the highest specific damping capacity among the metals used in armor applications. Thus, magnesium is an excellent choice for ballistic applications because of its enhanced energy absorption and shock mitigation.…”

Section: Introductionmentioning

confidence: 99%

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Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Abdullah

Omar

et al. 2015

Advances in Mechanical Engineering

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The association of the failure behavior of the AZ31B magnesium alloy with absorption energy under ballistic impact condition was investigated in this study, as well as the effect of varying percentages of added lead (Pb) content. The compositions of Pb in AZ31B were 1%, 5%, and 10% by percentage weight of Pb. Two types of projectile were used to compare the experimental and simulation results. Ballistic testing on a magnesium alloy plate was performed at the velocity of 435 m/s for the 9 mm 3 19 mm Parabellum projectile and 976 m/s for the 5.56 mm 3 45 mm NATO projectile. Simulation was performed using the Johnson-Cook model to determine the maximum stress that the material can withstand. Deformation and failure occurred in the ballistic simulation when the different projectiles were used. In the 9 mm 3 19 mm Parabellum projectile, no penetration was observed in the magnesium alloy, whereas in the 5.56 mm 3 45 mm NATO projectile, complete penetration was observed throughout the thickness of the alloy. The addition of Pb on AZ31B affected the absorption energy, and the addition of 1% Pb produced the most suitable absorption energy for further analysis.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Abdullah

Omar

et al. 2015

Advances in Mechanical Engineering

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“…The chemical composition is 3% aluminum, 1% zinc, 0.2% manganese, 0.1% copper, 0.01% ferrite. Density is 1.77 g/cm 3 [9]. The work-piece dimension is 34 mm.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Surface Roughness Evaluation in Dry-Cutting of Magnesium Alloy by Air Pressure Coolant

Kim¹

2010

Engineering

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In this paper, a studying of surface roughness in dry milling with air pressure coolant of wrought magnesium alloy AZ31B will be carried out. The effects of air flow, feed-rate per tooth, cutting velocity and number of inserts in a cutting tool on surface roughness have been examined. Surface roughness increases with increasing feed-rate per tooth and increasing number of inserts in the cutting tool. However, it is nearly unchanged under a specific range of cutting velocity in the experiment and improved by the flow of air cooling.

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“…Although the tensile strength of rolled magnesium alloys is traditionally lower than that of rolled aluminum armor alloys, magnesium may possess other unique characteristics, including superior vibration damping and differences in failure mechanisms, that could provide for improved relative ballistic performance (2).…”

Section: Introductionmentioning

confidence: 99%

Development of a Ballistic Specification for Magnesium Alloy AZ31B

Jones¹,

DeLorme²

2008

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)December 2008 ARL-TR-4664 SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S) DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES Magnesium Elektron North America, Inc., 1001 College St., Madison, IL 62060 ABSTRACTThe U.S. Army Research Laboratory (ARL) and Magnesium Elektron North America (MENA) have conducted a joint effort to develop and evaluate rolled plate in commercially available magnesium alloy-temper AZ31B-H24. MENA produced the rolled product and conducted the mechanical analysis, while ARL performed the ballistic analysis. The magnesium alloy plates were parametrically compared with the minimum performance requirements of aluminum alloy 5083-H131 temper rolled plate using various armor-piercing and fragment-simulating projectiles (FSPs). The ballistic results and comparisons are presented herein. The yield strength of AZ31B-H24 is the dominant mechanical property that will improve the performance at increased weights. iii SUBJECT TERMS

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Ballistic Evaluation of Magnesium Alloy AZ31B

Cited by 39 publications

References 0 publications

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Surface Roughness Evaluation in Dry-Cutting of Magnesium Alloy by Air Pressure Coolant

Development of a Ballistic Specification for Magnesium Alloy AZ31B

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