钛合金辐照损伤缺陷表征与性能调控研究进展  

Research progress on the characterization of irradiation damage defects and performance control of titanium alloy

作　　者：叶勇强 韩远飞[1] 赵敏[2] 黄光法[1] 吕维洁[1] YE Yongqiang;HAN Yuanfei;ZHAO Min;HUANG Guangfa;LYU Weijie(The State Key Laboratory of Metal Matrix Composites,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学材料科学与工程学院金属基复合材料国家重点实验室,上海200240 [2]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《航空材料学报》2022年第6期9-21,共13页Journal of Aeronautical Materials

基　　金：国家自然科学基金资助项目(U2067220);上海市浦江人才资助(21PJD03);中核集团“青年英才”、“领创科研”项目。

摘　　要：在高能粒子撞击和级联效应作用下,金属材料内部会产生不同类型的辐照损伤缺陷。辐照损伤缺陷的聚集和演化会破坏内部结构稳定性,恶化金属材料综合力学性能。钛合金由于其轻质高强、耐高温和较低的辐照活性等优势,是很有发展前景的抗辐照材料。本文针对如何提高钛合金抗辐照损伤性能的问题,总结钛合金辐照损伤缺陷表征及其力学响应的研究进展,分析辐照损伤缺陷的形成演化规律以及辐照剂量、温度和元素种类等对缺陷迁移、聚集的影响机制,讨论辐照诱导钛合金微观组织演化,进而产生辐照硬化、辐照脆化和辐照蠕变等辐照损伤效应,归纳评价钛合金抗辐照损伤性能,以及现有研究中缺乏有效抑制辐照损伤产生的方法,作者认为成分调控以及界面微观组织结构设计是提高钛合金抗辐照性能的有效策略。Under the high-energy particle impingement and cascade effect,different types of radiation damage defects occur in metals.The aggregation and evolution of radiation damage defects can lead to the destruction of the internal structural stability and the deterioration of their properties of metals.Titanium alloy is a promising radiation resistant alloy due to its advantages of light weight,high strength,high temperature resistance and low radiation activity.Aiming at the improvement of the radiation damage resistance,this work summarizes the research progress on the radiation damage defects,the microstructural features and mechanical properties of titanium alloys.In addition,the formation and evolution of radiation damage defects and the influence mechanism of radiation dose,temperature and element species on defect migration and aggregation are analyzed.The microstructure evolution of titanium alloys induced by irradiation and the radiation damage effects such as radiation hardening,radiation embrittlement and radiation creep are discussed.The radiation damage resistance properties of titanium alloys are summarized and evaluated.The existing researches are lack effective methods to inhibit the radiation damage.Finally,the effective strategies to improve the radiation resistance of titanium alloys through composition regulation and interface microstructure design are prospected.

关 键 词：钛合金 辐照损伤 缺陷表征 微观组织 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]