Nb对ZG35Cr25Ni12性能的影响
Effect of Niobium on Properties of ZG35Cr25Ni12
柴增田
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作者单位:承德石油高等专科学校 机械工程系, 河北 承德 067000
中文关键字:耐热钢; 热疲劳; 裂纹扩展
英文关键字:heat resistance steel; heat fatigue; crack growth
中文摘要:研究了铌对ZG35Cr25Ni12的热疲劳性能的影响,并对裂纹的扩展进行了分析,结果表明:适量的铌可以明显降低耐热钢在20~900 ℃循环条件下裂纹扩展速率。
英文摘要:The effect of niobium on heat fatigue of ZG35Cr25Ni12 steel was studied, and the crack growth in the steel was analyzed. The results show that Nb may obviously decrease the crack growth rate under the heat cycle condition of 20~900℃.