通过等离子烧结实现铍与低活化铁素体-马氏体钢的连接工艺。

A Joining Process between Beryllium and Reduced-Activation Ferritic-Martensitic Steel by Plasma Sintering.

作者信息

Kim Jae-Hwan, Hwang Taehyun, Nakamichi Masaru

机构信息

Fusion Energy Directorate, Rokkasho Fusion Institutes, Breeding Functional Materials Development Group, National Institutes for Quantum Science and Technology, Aomori 039-3212, Japan.

出版信息

Materials (Basel). 2021 Oct 23;14(21):6348. doi: 10.3390/ma14216348.

DOI:10.3390/ma14216348

PMID:34771874

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8585385/

Abstract

To investigate the growth kinetics of the reaction layer and mechanical strength of joined materials, we joined beryllium and reduced-activation ferritic-martensitic steel (F82H) by plasma sintering under various conditions and characterized the joined region. Scanning electron microscopy revealed that the thickness of the reaction layer increased with an increase in the joining time and temperature. Line analyses and elemental mapping using an electron microprobe analyser showed that the reaction layer consists of Be-Fe intermetallic compounds, including BeFe, BeFe, and BeFe, with small amounts of chromium and tungsten. Owing to the time and temperature dependence of the reaction-layer thickness, the layer growth of Be-Fe intermetallic compounds obeys the parabolic law, and the activation energy for the reaction-layer growth was 116.2 kJ/mol. The bonding strengths of the joined materials varied inversely with the thickness of the reaction layer.

摘要

为了研究反应层的生长动力学和连接材料的机械强度，我们在各种条件下通过等离子烧结连接铍和低活化铁素体-马氏体钢（F82H），并对连接区域进行了表征。扫描电子显微镜显示，反应层的厚度随着连接时间和温度的增加而增加。使用电子微探针分析仪进行的线分析和元素映射表明，反应层由Be-Fe金属间化合物组成，包括BeFe、BeFe和BeFe，并含有少量的铬和钨。由于反应层厚度对时间和温度的依赖性，Be-Fe金属间化合物的层生长遵循抛物线规律，反应层生长的活化能为116.2 kJ/mol。连接材料的结合强度与反应层的厚度成反比。