煤炭转化2017，Vol.40Issue(5)：69-73,80,6.
粉煤灰活性剂对焊缝性能的影响
Effects of Fly Ash on Properties of Welding Seam
刘克铭 1姜丙山 1马壮1
作者信息
- 1. 辽宁工程技术大学机械工程学院,123000辽宁阜新
- 折叠
摘要
Abstract
The welding seam of Q235A steel from the experiment of A-TIG (tungsten intent gas) was get,the tensile property of welding seam was checked using universal testing machine,and the corrosive property was checked through static corrosion test and electrochemical corrosion test.The results show that when fly ash is added as active agent,the weld seams have no big change in tensile strength compared with the tensile strength without surfactant;in static corrosion test,when fly ash 1 as surfactant,the corrosion resistance of the welding seam increases 1.90 times,1.29 times and 1.81 times in 15％ H2SO4,10％NaOH and 3.5％NaC1 solution than that of conventional weld seam respectively;when fly ash 2 as surfactant,the corrosion resistance of the welding seam increases 1.44 times,1.20 times and 1.47 times in 15％ H2SO4,10％ NaOH and 3.5％NaCl solution than that of conventional weld seam respectively;In electrochemical corrosion test,the corrosion rate of the active welding seam is smaller than that of conventional weld seam.The results show that adding fly ash as active agent can maintain the mechanical properties of the material and refine the microstructure to enhance the corrosion resistance.关键词
粉煤灰/活性钨极氩弧焊/金相组织/抗拉强度/耐蚀性能Key words
fly ash/activating tungsten inert gas welding/microstructure/tensile strength/corrosion resistance分类
矿业与冶金引用本文复制引用
刘克铭,姜丙山,马壮..粉煤灰活性剂对焊缝性能的影响[J].煤炭转化,2017,40(5):69-73,80,6.
