발간논문

Home > KJMM 논문 > 발간논문

Vol.33, No.5, 599 ~ 605, 1995
Title
The Determination of Thermal Residual Stresses in Wc - Ni Cemented Carbide Composites by Neutron Diffraction
설경원 Kyeong Won Seol
Abstract
The differential thermal residual stress state in WC-6wt.%Ni and WC-25wt.%Ni cemented carbide composites has been studied using neutron powder diffraction. Residual strain values have been obtained from the difference in WC cell parameters in a strain-free WC powder and in the composites over the temperature range 100-900 K. The nature of stress state of WC phase in the as-produced composite was confirmed to be hydrostatic by tri-axial stress measurements. The stress state is compressive in the WC phase and tensile in the Ni binder phase as expected. The absolute stress value increases as the temperature decreased and as binder content increased. The effective stress set-up temperatures are about 1030 K for low binder composite and 990 K for high binder composite.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.