Acta Metallurgica Sinica (English Letters) ›› 1990, Vol. 3 ›› Issue (10): 246-251.

• Research paper • Previous Articles     Next Articles

RESIDUAL STRESS AND DAMAGE MODE OF HARD Ti(CN)COATINGS

LIU Changqing JIN Zhujing WU Weitao DAI Shaoxia LI Meishuan SHI Changxu Institute of Corrosion and Protection of Metals,Academia Sinica,Shenyang,China LIU Changqing Institute of Corrosion and Protection of Metals,Academia Sinica,Shenyang 110015,China   

  • Received:1990-10-11 Revised:1990-10-11 Online:1990-10-11 Published:2009-10-10

Abstract: Using free bending method,the residual stress of the Ti(CN)coating on alloy Nb-752 was measured to be 2-3 GPa of which the thermal stress cmounts to 10—20%.An analysis on coating/substrate interface stress state shows that the share stress at it is about O.1—0.2 GPa.The demage mode of the coating under external loading was proposed in terms of the amount and the direction of loading.

Key words: Ti(CN) hard coatings, residual stress, demage mode