Research on Melted and Rapidly Solidified Layer on the Surface of Crater Penetrated by Long Tungsten Rod

LUO Rong-mei;HUANG De-wu;YANG Ming-chuan;HUANG Hai;LI Fu-ying

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2015, Vol. 36 ›› Issue (7) : 1167-1175. DOI: 10.3969/j.issn.1000-1093.2015.07.003
Paper

Research on Melted and Rapidly Solidified Layer on the Surface of Crater Penetrated by Long Tungsten Rod

  • LUO Rong-mei1,2， HUANG De-wu2, YANG Ming-chuan2, HUANG Hai3, LI Fu-ying3
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Abstract

A thin surface layer, called melted and rapidly solidified layer, is formed when tungsten long rod penetrates into armor at high velocity. When the 30CrMnMo target is shot by a small caliber long rod armor piercing projectile at 0°angle, a crater is formed on the target. In order to investigate the morphology characteristics and forming mechanism of MRSL, the surface of the crater is observed by scanning electronmicroscopy and analyzed by energy spectrum. LS-DYNA is used to simulate the temperature field of the interaction area between penetrator and target. It is shown that MRSL consists of W, Ni and Fe elements, which are contained in long rod material, and Fe, Cr and Mn elements, which are contained in target material. In MRSL, tungsten grains have two kinds of size: the big one is of long and flat shape, and its length is in the range from several micrometers to dozens of micrometers; the small one is dispersed in matrix with 100~400 nm in diameter. The mass consumption of long rod head is happened in the form of “melted and broken”.

Key words

ordnance science and technology / armor piercing / interaction area between penetrator and target / melted and broken mass consumption / melted and rapidly solidified layer

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LUO Rong-mei， HUANG De-wu, YANG Ming-chuan, HUANG Hai, LI Fu-ying. Research on Melted and Rapidly Solidified Layer on the Surface of Crater Penetrated by Long Tungsten Rod. Acta Armamentarii. 2015, 36(7): 1167-1175 https://doi.org/10.3969/j.issn.1000-1093.2015.07.003

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