Effect of residual elements on high performance nickel base superalloys for gas turbines and strategies for manufacture

Bulletin of materials science

M Chatterjee¹  V V R S Sarma¹  O P Sinha¹  S N Jha¹ 

[1] Mishra Dhatu Nigam Limited, P.O. Kanchanbagh, Hyderabad 500 058, India$$Mishra Dhatu Nigam Limited, P.O. Kanchanbagh, Hyderabad 500 058, IndiaMishra Dhatu Nigam Limited, P.O. Kanchanbagh, Hyderabad 500 058, India$$

关键词: Superalloys;    tramp elements;    creep and stress rupture properties;    vacuum induction melting.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The need for better gas turbine operating efficiency and reliability has resulted in tightening of specification and acceptance standards. It has been realized that some elements even at trace level, can have disastrous effect on high temperature properties. The present paper highlights the adverse effect of tramp elements and strategies that should be adopted to produce high purity superalloys.

【 授权许可】

Unknown