摘要
对GH132奥氏体耐热合金进行了粉末低温渗铝的研究,渗铝温度为650～710℃,时间为16～24h,渗铝层深度为0.002～0.008mm。试验结果表明,渗铝前后的基体组织、常规机械性能及高温持久强度均无明显变化,而抗热腐蚀性能却显著增加,为延长燃气轮机涡轮盘类零件使用寿命提供了实验依据。
In this paper GH132 austenitic heat resisting alloy was chosento study low temperature powder calorizing.At 650～710℃ holding 16～24hours,0.002～0.008mm in depth of aluminum layer could be obtained.Testresults showed that there were no evident differences between pre-and post-calorizing in matrix structare,coventional mechanical properties and hightemperature endurance strength,however the life of anti-hot corrosion wasprolonged obviously.It provided test basis for prolonging the life of turbinedisk.
出处
《金属热处理》
CAS
CSCD
北大核心
1990年第12期14-18,51,共6页
Heat Treatment of Metals
关键词
耐热合金
渗铝
低温
calorizing
heat resisting alloy
