管制不锈钢刀具理化特性数据库的建立  

Establishment of Physical and Chemical Properties Database of Controlled Stainless Steel Knives

作　　者：吴伟[1,2] 刘紫微[1,2] 林初城[1,2] 丁敏菊 张成功[2] 夏攀[2] 

机构地区：[1]中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室,上海200050 [2]上海市公安局物证鉴定中心/上海市现场物证重点实验室省部共建国家重点实验室培育基地,上海200083

出　　处：《理化检验（物理分册）》2013年第1期11-16,共6页Physical Testing and Chemical Analysis(Part A:Physical Testing)

基　　金：上海市现场物证重点实验室开放课题(2010XCWZK03)

摘　　要：针对暴力性凶杀案件中刀具是最常见的物证之一,但目前缺乏刀具数据库的现状,对13种不锈钢管制刀具及其对应的8种不锈钢刀具钢坯原材料进行了切割、镶嵌、抛光、刻蚀等一系列制样工序,分析了不同试样的显微组织、化学成分、相组成及显微硬度等理化特性,研究了不同试样理化特性的规律,探索了管制刀具数据库的建立方法,以期对刀具物证的溯源工作提供科学依据。The knife is one of the important scene evidences in the violent cases, which provides the clue about the crime. However, it often become very difficult to get the useful information about the crime due to lacking the database about the chemical and physical properties of knifes, which can compare these properties of scene and commercial knifes, and finally track the crime information. The thirteen kinds of steel knifes and eight kinds of raw material billets were investigated by these sample preparation procedures including cutting, inlay, polishing and etching~ and the physical and chemical characteristics of different samples were analyzed, including microstructure, chemical composition, phase composition and Rockwell hardness. The rules of the physical and chemical characteristics of these different samples, which can provide the scientific evidences for tracking the manufacturer of different knifes, were recovered. The establishment method of controlled knives database Was presented.

关 键 词：管制不锈钢刀具 钢坯 理化特性 数据库 

分 类 号：TG8[金属学及工艺—公差测量技术]