典型文献
Effects of V addition on the mechanical properties at elevated temperatures in a γ"-strengthened NiCoCr-based multi-component alloy
文献摘要:
NiCoCr-based multi-component alloys have drawn much attention due to their exceptional ductility and strain hardening capacity.However,insufficient strength-ductility synergy of NiCoCr alloy has always been an issue that prevents it from extensive applications.According to our previous research,the precipitation of γ"phase can significantly improve the strength-ductility synergy of this alloy system at room temperature.In this study,the effects of V addition on γ"phase stability and high-temperature mechanical properties have been explicitly investigated.The results indicate that V addition can sta-bilize the metastable γ"phase in this alloy system and prevent it from transforming into a stable δphase at grain boundaries upon 650℃aging,resulting in improved mechanical properties at elevated temperatures.The specific strength of γ"-strengthened multi-component NiCoCr-based alloy can reach up to 86.2 MPa g-1 cm-3 at 650℃,which is higher than those of Ni-based superalloys,IN 939 and Waspaloy.This work provides theoretical guidance for the novel design of γ"-strengthened alloy for high-temperature applications.
文献关键词:
中图分类号:
作者姓名:
Yunwei Pan;Anping Dong;Yang Zhou;Dafan Du;Donghong Wang;Guoliang Zhu;Baode Sun
作者机构:
Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Lab of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处:
引用格式:
[1]Yunwei Pan;Anping Dong;Yang Zhou;Dafan Du;Donghong Wang;Guoliang Zhu;Baode Sun-.Effects of V addition on the mechanical properties at elevated temperatures in a γ"-strengthened NiCoCr-based multi-component alloy)[J].材料科学技术(英文版),2022(12):290-300
A类:
NiCoCr,Waspaloy
B类:
Effects,addition,mechanical,properties,elevated,temperatures,strengthened,multi,component,have,drawn,much,attention,due,their,exceptional,ductility,strain,hardening,capacity,However,insufficient,synergy,always,been,issue,that,prevents,from,extensive,applications,According,our,previous,research,precipitation,phase,significantly,this,system,room,In,study,effects,stability,explicitly,investigated,results,indicate,bilize,metastable,transforming,into,grain,boundaries,upon,aging,resulting,improved,specific,reach,which,higher,than,those,superalloys,IN,This,work,provides,theoretical,guidance,novel,design
AB值:
0.46304
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