Effect of TaC on plastic deformation of WC–Co and Ti(C,N)–WC–Co

金属陶瓷 材料科学 晶界 碳化物 变形(气象学) 冶金 复合材料 碳纤维 弯曲 微观结构 陶瓷 复合数
作者
Gustaf Östberg,Katharina Buss,Mikael Christensen,Susanne Norgren,Hans-Olof Andrén,Daniele Mari,Göran Wahnström,I. Reineck
出处
期刊:International Journal of Refractory Metals & Hard Materials [Elsevier]
卷期号:24 (1-2): 145-154 被引量:68
标识
DOI:10.1016/j.ijrmhm.2005.04.010
摘要

The plastic deformation resistance of metal cutting inserts made from a WC–Co cemented carbide, a Ti(C, N)–WC–Co cermet and corresponding materials with additions of TaC has been studied. The cermets were produced with both high and low carbon activity, resulting in a total of six materials. Ab initio calculations of some WC/WC grain boundary geometries suggest that both Co and Ta segregate substitutionally to the boundary and improve the grain boundary strength when substituting carbon. However, only Co segregation was found experimentally, probably due to (Ta, W)C formation. Plastic deformation tests were performed with a turning operation under controlled conditions. For the WC–Co, the addition of Ta had a positive effect for lower cutting speeds but at higher speeds the effect was negative. Three-point bending tests indicated a beneficial effect of Ta in WC–Co, which was also confirmed by internal friction (IF) measurements. However, after thermal cycling, the effect of Ta could be smaller, or even negative. The Ta cermet produced with low carbon activity exhibited a better plastic deformation resistance during cutting but no apparent effects of Ta could be seen either in IF measurements or in three-point bending tests of the cermets. However, a correlation was found between plastic deformation during turning and IF spectra. In the cermet materials, binder phase lamella formation promotes grain boundary sliding at high temperatures.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
hzf关闭了hzf文献求助
2秒前
彭于晏应助科研通管家采纳,获得30
2秒前
852应助科研通管家采纳,获得10
2秒前
丘比特应助科研通管家采纳,获得10
2秒前
充电宝应助科研通管家采纳,获得10
2秒前
orixero应助科研通管家采纳,获得10
2秒前
2秒前
2秒前
研友_VZG7GZ应助科研通管家采纳,获得10
2秒前
完美世界应助科研通管家采纳,获得10
2秒前
所所应助科研通管家采纳,获得10
2秒前
盒子应助科研通管家采纳,获得10
2秒前
5秒前
清都山水郎完成签到,获得积分10
6秒前
鳗鱼焦发布了新的文献求助10
9秒前
winnie完成签到,获得积分10
10秒前
10秒前
Island D完成签到,获得积分10
11秒前
11秒前
淡淡的向雁完成签到,获得积分10
12秒前
YL完成签到 ,获得积分10
12秒前
科研小白完成签到,获得积分10
12秒前
hzf驳回了大个应助
12秒前
黑白灰完成签到 ,获得积分20
15秒前
林洛沁发布了新的文献求助10
15秒前
Island D发布了新的文献求助20
16秒前
八戒完成签到 ,获得积分10
17秒前
木槿花难开完成签到,获得积分10
17秒前
余红发布了新的文献求助10
18秒前
Danish发布了新的文献求助10
19秒前
20秒前
科目三应助闪闪凝冬采纳,获得10
20秒前
迷路访云完成签到 ,获得积分10
21秒前
郭郭发布了新的文献求助10
21秒前
zzz完成签到 ,获得积分10
21秒前
范月月完成签到 ,获得积分10
23秒前
zhasmile完成签到 ,获得积分10
24秒前
活力的镜子完成签到,获得积分10
25秒前
Hover完成签到 ,获得积分10
30秒前
衬衫完成签到,获得积分10
31秒前
高分求助中
Sustainability in Tides Chemistry 2000
Pharmacogenomics: Applications to Patient Care, Third Edition 1000
Studien zur Ideengeschichte der Gesetzgebung 1000
TM 5-855-1(Fundamentals of protective design for conventional weapons) 1000
Ethnicities: Media, Health, and Coping 700
Genera Insectorum: Mantodea, Fam. Mantidæ, Subfam. Hymenopodinæ (Classic Reprint) 600
Development of a new synthetic process for the synthesis of (S)-methadone and (S)- and (R)-isomethadone as NMDA receptor antagonists for the treatment of depression 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3088895
求助须知:如何正确求助?哪些是违规求助? 2741074
关于积分的说明 7563214
捐赠科研通 2391229
什么是DOI,文献DOI怎么找? 1268199
科研通“疑难数据库(出版商)”最低求助积分说明 614019
版权声明 598684