超深海压力环境对铁碳合金材料力学性能的影响研究

项目名称： 超深海压力环境对铁碳合金材料力学性能的影响研究

项目编号： No.51461009

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 张于贤

作者单位： 桂林电子科技大学

项目金额： 48万元

中文摘要： 本项目旨在研究超深海压力环境对铁碳合金材料力学性能的影响规律。研究内容包括：（1）基于对厚壁圆筒的弹塑性分析，探索对厚壁圆筒形材料试件实施力学性能研究的原理和方法，提供一种研究超深海压力环境对金属材料力学性能影响的新思路。（2）基于液压传动与控制的基本理论和构建超高压力环境的有关原理和方法，研究如何在实验室模拟超深海压力环境，并通过对模拟超深海压力环境静压力特征的分析，从海水深度这一重要指标揭示本项目所用模拟方法产生误差的原因及规律。（3）针对碳素钢及低合金高强度钢这两类工程常用的铁碳合金材料，利用上述原理和方法，研究不同深度超深海压力环境对铁碳合金材料力学性能的影响规律，并建立相应的数学模型。本项目的研究成果对完善超深海压力环境对材料力学性能影响的研究方法，对超深海探测与开发、船舶工程、石油化工及兵器研制等领域，对提升广西海洋开发能力都具有一定的理论意义和现实意义。

中文关键词： 超深海压力环境；铁碳合金；力学性能

英文摘要： The project aims to research the ultra-deep sea pressure environment on the influence regular of the Fe-C alloys material mechanical properties. The research content includes: (1) Based on the elastic-plastic analysis of thick wall cylinder, explores the principle and method that thick wall cylinder material specimen do the mechanical performance study, and provides a new ideas to research the ultra-deep sea pressure environment on the metal material mechanics performance. (2) Based on the basic theory of hydraulic drive and control and the principle and method of constructing ultra-high pressure environment, in the laboratory study how to simulate ultra-deep sea pressure environment, and through the analysis of the characteristics of static pressure in the simulation ultra-deep sea pressure environment, from the depth which is an important indicators to reveal the cause and regular of the errors which is produced by the simulation method used in this project. (3) Depending on carbon steel and high strength low alloy steel, which are the two kinds of iron carbon alloy material commonly used in engineering, use the principle and method to research the different ultra-deep sea pressure environment on the influence regular of the Fe-C alloys material mechanical properties, and establish the corresponding mathematical model. The objective of the research results to improve the ultra-deep sea pressure environment on the influence of material mechanical properties research methods, the ultra-deep sea exploration and development, marine engineering, petrochemical industry and the weapons research and other fields, to promote Guangxi ocean development ability has certain theoretical and practical significance.

英文关键词： ultra-deep sea pressure enviroment;Fe-C alloys;mechanical properties