Effect of Tempering Temperature on the Microstructure and Mechanical Properties of ARMOX 500T Armor Plate

Hyeon-Seok Lim; Jimin Lee; Young-Beum Song; Hong-Kyu Kim; Byoungchul Hwang

doi:10.3740/MRSK.2017.27.7.357

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Effect of Tempering Temperature on the Microstructure and Mechanical Properties of ARMOX 500T Armor Plate 템퍼링 온도에 따른 ARMOX 500T 장갑재의 미세조직과 기계적 특성

July 2017. pp. 357-361

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Abstract

The resistance of metallic materials to ballistic penetration generally depends on a number of parameters related to projectile, impact, and armor plate. Recently, armor materials have been required to have various properties such as hardness, strength, and impact toughness in order to maintain an excellent ballistic resistance even after impact. In the present study, the influence of tempering on the microstructure and mechanical properties of an ARMOX 500T armor steel plate was investigated and then compared with those of S45C and SCM440 steels. As the tempering temperature increased, the hardness and strength gradually decreased, whereas the ductility and impact toughness clearly increased because the hardness, tensile, and impact properties were affected by the microstructural evolution and precipitation occurring during tempering. On the other hand, temper embrittlement appeared at tempering temperatures of 300 to 400 °C for the impact specimens tested at low temperature.

Keywords

ARMOX 500T

armor plate

tempering

hardness

impact toughness

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 27
No :7
Pages :357-361
Received Date : 2017-05-18
Revised Date : 2017-06-07
Accepted Date : 2017-06-08
DOI :https://doi.org/10.3740/MRSK.2017.27.7.357

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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