KLI

WC-NI系 超硬合金의 燒結擧動에 關하여(Ⅰ)

Metadata Downloads
Alternative Title
Sintering Behavior of the WC-Ni Hard Alloys(I)
Abstract
초경합금의 접합금속으로 사용되는 값비싼 코발트의 절약을 위해, 코발트 대신 니클을 접합시킨 WC-Ni系 초경합금의 소결거동을 WC-6%(Ni+Co)系 및 미량의 첨가제를 사용한 WC系에서 조사하였다.

WC-Ni系에 있어서 수축특성과 경도치는 통상의 WC-Co系와 유사한 거동을 보였으나, 현미경 조직은 코발트를 대치 시킨 WC-(Ni+Co)系에서 복합탄화물, 유리탄소의 석출상이 현저하였다. 이와같은 조성적 변화는 系의 소결성 및 기계적 성질에 크게 영향을 미친다.

소결에 따른 수축거동, 현미경조직, 기계적 성질등을 조사하고 논의를 행하였다.
In order to expenxive cobalt, an investigation was carried out, on the passibility that WC-Ni hard metal could be obtained by substituting nickel for cobalt as binder metal. The influences of small amount of additives as well as nickel binder were investigated on sintering behavior of the WC and WC+6%(Ni+Co) system.

In the nickel binded WC hard metal, the shrinkage behavior and hardness were simillar to those of the conventional WC-Co system. But by examiningthe microstructure of WC+(Ni+Co) system, it was conformed that the complex cabide and carbon precipitated more than in the cobalt binded one. Mechanical propeities and sinterability of materials were mostly affected by changes in constitution of system (chemical composition, phase composition, as ell as the equlibrium dependent microstructure).

The relationships between sintering parameter, microstructure and their related materials properties were also discussed.
In order to expenxive cobalt, an investigation was carried out, on the passibility that WC-Ni hard metal could be obtained by substituting nickel for cobalt as binder metal. The influences of small amount of additives as well as nickel binder were investigated on sintering behavior of the WC and WC+6%(Ni+Co) system.

In the nickel binded WC hard metal, the shrinkage behavior and hardness were simillar to those of the conventional WC-Co system. But by examiningthe microstructure of WC+(Ni+Co) system, it was conformed that the complex cabide and carbon precipitated more than in the cobalt binded one. Mechanical propeities and sinterability of materials were mostly affected by changes in constitution of system (chemical composition, phase composition, as ell as the equlibrium dependent microstructure).

The relationships between sintering parameter, microstructure and their related materials properties were also discussed.
Author(s)
崔城洙權永珣
Issued Date
1981
Type
Research Laboratory
URI
https://oak.ulsan.ac.kr/handle/2021.oak/5128
http://ulsan.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002025624
Alternative Author(s)
CHOI, S.S.KWON, Y.S.
Publisher
연구논문집
Language
kor
Rights
울산대학교 저작물은 저작권에 의해 보호받습니다.
Citation Volume
12
Citation Number
1
Citation Start Page
85
Citation End Page
91
Appears in Collections:
Research Laboratory > University of Ulsan Report
공개 및 라이선스
  • 공개 구분공개
파일 목록

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.