Effects of H2 on Microstructure and Properties of Pre-sintered WC-11.2Co-0.3TaC Cemented Carbide AITranslate
Abstract AITranslate
Taking the two groups of WC-11.2Co-0.3TaC cemented carbide with or without H2 during the process of secondary sintering as the research object,the influence of H2 on the microstructure and properties of the alloy after pre-sintering was studied by metalloscopic observation and physical and chemical properties testing.The results show that the oxygen content of the pre-sintered sample at 850℃ is affected by the storage time.With the prolongation of the storage time,the oxygen content of the sample gradually increases.After the storage time is more than 12 h,the oxygen content is basically stable at about 0.22%.H2 intervention during the secondary sintering can better protect the carbon content in WC-11.2CO-0.3TaC cemented carbide,so that its relative magnetic saturation strength is maintained at about 94.9%.The higher carbon content leads to more ununiform WC grains in the alloy,and at the same time leads to a decrease in density,hardness,coercive force and bending strength of the alloy.Compared with the secondariy sintered sample without H2,the flexural strength of the sample with H2 is reduced by 604 N/mm2.
KeyWords AITranslate
1贾成厂,孙兰.工业的牙齿——硬质合金(1)[J].金属世界,2011(4):7-9. 被引量：14
2傅小明,吴晓东.超细硬质合金中添加抑制剂的研究进展[J].四川有色金属,2004(1):22-26. 被引量：11
3何荣,胡业奇.WC-Co硬质合金的生坯切削加工行为[J].粉末冶金工业,2013,23(6):44-48. 被引量：3
4蒙世合,罗海辉,彭宇.WC晶粒离散度对WC-Co硬质合金断裂韧性的影响[J].硬质合金,2017,34(1):14-20. 被引量：11
5朱国丽,何清勇,唐琛,王权,张平,乔娇.WC-10%Co非均匀结构细晶合金的研究[J].硬质合金,2015,32(2):88-94. 被引量：5
6张光亮,谢文,黄文亮,黄前葆,陈响明,王社权.WC粒度分布对WC-Co硬质合金力学性能影响的模拟分析[J].硬质合金,2013,30(1):1-7. 被引量：16
7易长宾,金星,吴翔.添加W粉对YG20C硬质合金组织及性能的影响[J].稀有金属与硬质合金,2019,47(2):68-73. 被引量：2
1赵弘超,张宏建,朱晨,陈圣龙,张凌峰,高元,王雨润.氧化铝与氧化锆多层共烧热应力分析[J].传感器世界,2021,27(9):12-20.
2袁勇,陈建文,梁杰,张银国,薛路,吴淑玉,蓝天宇,吴飘.南黄海崂山隆起二叠系砂岩储层特征及其油气勘探前景[J].海洋地质与第四纪地质,2021,41(5):181-193. 被引量：2
Basic Information:
DOI：
Chinese Library Classification Number:TG135.5[一般工业技术—材料科学与工程]
Citation Information:
Taking the two groups of WC-11.2Co-0.3TaC cemented carbide with or without H2 during the process of secondary sintering as the research object,the influence of H2 on the microstructure and properties of the alloy after pre-sintering was studied by metalloscopic observation and physical and chemical properties testing.The results show that the oxygen content of the pre-sintered sample at 850℃ is affected by the storage time.With the prolongation of the storage time,the oxygen content of the sample gradually increases.After the storage time is more than 12 h,the oxygen content is basically stable at about 0.22%.H2 intervention during the secondary sintering can better protect the carbon content in WC-11.2CO-0.3TaC cemented carbide,so that its relative magnetic saturation strength is maintained at about 94.9%.The higher carbon content leads to more ununiform WC grains in the alloy,and at the same time leads to a decrease in density,hardness,coercive force and bending strength of the alloy.Compared with the secondariy sintered sample without H2,the flexural strength of the sample with H2 is reduced by 604 N/mm2.
quote
| GB/T 7714-2015 | [1] JIN Xing. Effects of H2 on Microstructure and Properties of Pre-sintered WC-11.2Co-0.3TaC Cemented Carbide[J]. Rare Metals and Cemented Carbides, 2021(5): 77-81. |
| MLA | [1] JIN Xing. "Effects of H2 on Microstructure and Properties of Pre-sintered WC-11.2Co-0.3TaC Cemented Carbide." Rare Metals and Cemented Carbides, no. 5, 2021, pp. 77-81. |
| APA | [1] JIN Xing. (2021). Effects of H2 on Microstructure and Properties of Pre-sintered WC-11.2Co-0.3TaC Cemented Carbide. Rare Metals and Cemented Carbides(5), 77-81. |
| IEEE | [1] JIN Xing, "Effects of H2 on Microstructure and Properties of Pre-sintered WC-11.2Co-0.3TaC Cemented Carbide," Rare Metals and Cemented Carbides, no. 5, pp. 77-81, 2021. keywords: {WC-11.2Co-0.3TaC cemented carbide;pre-sintering;secondary sintering;H;oxygen content} |