摘要
从Sieverts定律和微孔隙中分子氢和钢内溶解氢化学势平衡的理论基础出发,介绍了目前已有的几种钢内微孔隙氢压强度和氢浓度计算模型。通过对比找出了最适合应用的微孔隙氢压强度计算模型,并建立了新的微孔隙氢浓度计算模型。最后建立了钢内微孔隙氢压强度和氢浓度综合计算模型,证明了温度和孔隙率对微孔隙内氢压强度和氢浓度的重要影响。所建模型和分析结果为深入研究钢内白点的萌生扩展机制奠定了基础。
Base on the Sieverts law and chemical potential balance between molecular hydrogen in micropore and dissolved atomic hydrogen in steel, the paper introduced several existing calculation models for hydrogen pressure magnitude and hydrogen concentration in micropore. With comparing the most suitable for application of micropore hydrogen pressure magnitude calculation model was identified, and a new mieropore hydrogen concentration calculation model was established. Finally, the compressive calculation model for micropore＇s hydrogen pressure magnitude and hydrogen concentration was created, and prove the important influence of temperature and porosity on the micropore＇s hydrogen pressure magnitude and hydrogen concentration. The established calculation model and analysis results lays the foundation for in-depth study on the flake＇s initiation and expansion mechanism in steel.
出处
《钢铁》
CAS
CSCD
北大核心
2013年第10期70-75,共6页
Iron and Steel
基金
国家自然基金资助项目(51075352
51005197)
关键词
微孔隙
氢压强度
氢浓度
计算模型
白点
micropore
hydrogen pressure magnitude
hydrogen concentration
calculation model
flake
