A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials

碩士 === 國立海洋大學 === 材料工程研究所 === 88 === A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials Abstract The composition, performance and design of the ballistic or protection materials are regarded as high secrecy for each country, therefo...

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Main Authors: JIUM-SHYONG CHEN, 陳俊雄
Other Authors: PEE-YEW LEE
Format: Others
Language:zh-TW
Published: 2000
Online Access:http://ndltd.ncl.edu.tw/handle/57003139625850227272
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spelling ndltd-TW-088NTOU01590012016-01-29T04:14:29Z http://ndltd.ncl.edu.tw/handle/57003139625850227272 A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials 高性能抗彈鋼板研製及性能研究 JIUM-SHYONG CHEN 陳俊雄 碩士 國立海洋大學 材料工程研究所 88 A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials Abstract The composition, performance and design of the ballistic or protection materials are regarded as high secrecy for each country, therefore, the papers or documentations about armor application and ballistic evaluation are seldom reported in journal or publication. Rolled homogeneous armor (RHA) steels are the most common materials used for armor protection at present. In 1985, a new alloy called improved rolled homogeneous armor (IRHA) was successfully developed in USA as well. In fact, both RHA and IRHA are widely used for armor, however, technical data related to the fabrication and structure design are purposely protected. Thus, details concerning alloy design, material melting, production, hot working, microstructure control and heating treatment are remained unknown for structure design or ballistic evaluations. In this study, the influence of processing and microstructure of RHA and IRHA was carried out and investigated for the first time in Taiwan/ ROC. In addition, the comparison in mechanical behavior and ballistic performance (between a purchased RHA from oversea and the alloys prepared in present work) was systematically made. The experimental results showed that the RHA and IRHA are homogeneous and clean during vacuum induction melting (VIM) and vacuum arc refine (VAR) process. Both purchased and melt ingots were hot-rolled down to 4 mm in thickness, followed by heat treatment to receive various hardness in sheet. Then, the mechanical property、 microstructure observation and a ballistic limit test by using of 44 grain fragment simulating projectile (FSP) were performed. It is demonstrated that the IRHA has a superior mechanical property、good impact toughness and better ballistic resistance than those of RHA when the hardness of IRHA is controlled between HRc 40 to 50. Based on the experiment results, a number of information concerning the alloy design、the parameter of the melting、rolling and heat treatment are obtained and analyzed, which are quite helpful for the engineering design and mass production in future work. PEE-YEW LEE 李丕耀 2000 學位論文 ; thesis 141 zh-TW
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description 碩士 === 國立海洋大學 === 材料工程研究所 === 88 === A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials Abstract The composition, performance and design of the ballistic or protection materials are regarded as high secrecy for each country, therefore, the papers or documentations about armor application and ballistic evaluation are seldom reported in journal or publication. Rolled homogeneous armor (RHA) steels are the most common materials used for armor protection at present. In 1985, a new alloy called improved rolled homogeneous armor (IRHA) was successfully developed in USA as well. In fact, both RHA and IRHA are widely used for armor, however, technical data related to the fabrication and structure design are purposely protected. Thus, details concerning alloy design, material melting, production, hot working, microstructure control and heating treatment are remained unknown for structure design or ballistic evaluations. In this study, the influence of processing and microstructure of RHA and IRHA was carried out and investigated for the first time in Taiwan/ ROC. In addition, the comparison in mechanical behavior and ballistic performance (between a purchased RHA from oversea and the alloys prepared in present work) was systematically made. The experimental results showed that the RHA and IRHA are homogeneous and clean during vacuum induction melting (VIM) and vacuum arc refine (VAR) process. Both purchased and melt ingots were hot-rolled down to 4 mm in thickness, followed by heat treatment to receive various hardness in sheet. Then, the mechanical property、 microstructure observation and a ballistic limit test by using of 44 grain fragment simulating projectile (FSP) were performed. It is demonstrated that the IRHA has a superior mechanical property、good impact toughness and better ballistic resistance than those of RHA when the hardness of IRHA is controlled between HRc 40 to 50. Based on the experiment results, a number of information concerning the alloy design、the parameter of the melting、rolling and heat treatment are obtained and analyzed, which are quite helpful for the engineering design and mass production in future work.
author2 PEE-YEW LEE
author_facet PEE-YEW LEE
JIUM-SHYONG CHEN
陳俊雄
author JIUM-SHYONG CHEN
陳俊雄
spellingShingle JIUM-SHYONG CHEN
陳俊雄
A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
author_sort JIUM-SHYONG CHEN
title A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
title_short A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
title_full A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
title_fullStr A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
title_full_unstemmed A Study on the Fabrication and Characterization of High Performance Ballistic Metallic Materials
title_sort study on the fabrication and characterization of high performance ballistic metallic materials
publishDate 2000
url http://ndltd.ncl.edu.tw/handle/57003139625850227272
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