首页> 外文期刊>Journal of the European Ceramic Society >Fractography of hardmetal dies used for the manufacture of polycrystalline diamond
【24h】

Fractography of hardmetal dies used for the manufacture of polycrystalline diamond

机译:用于制造多晶钻石的硬质合金模具的Fractography

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

Some WC/Co hardmetal dies used for the high-temperature, high-pressure fabrication of polycrystalline diamond have been subjected to fractographic investigation after service failure. In each die a number of flat plate-like fragments have been found showing an unusual fountain-like appearance to the fracture surface markings. Despite extensive probing, discrete fracture origins could not be found. Instead, from the evidence of the microcracking found in the die bore region and the recognised development of deformations during a campaign, it was concluded that microstructural damage was developed under the complex non-equitriaxial compression stresses which are developed during the duty cycles. When the propagation of this damage reached the axial tensile zone that exists in the cooler regions of the die, the plate-like, more-brittle failure pattern developed. (C) 2017 Elsevier Ltd. All rights reserved.
机译:一些用于高温的WC / CO硬质合金模具,在多晶金刚石的高压制造中已经进行了效果发生后的Fretography Resigation。 在每个模具中,已经发现许多平板状片段显示出裂缝表面标记的异常喷泉外观。 尽管探讨了广泛,但无法找到离散的骨折起源。 相反,从模具孔区域中发现的微裂纹的证据和运动期间的变形的公认发展,得出结论是在占空比期间开发的复杂非赤裸裸的压缩应力下显影了微观结构损伤。 当这种损坏的传播到达模具的冷却器区域中存在的轴向拉伸区时,开发的板状,更多脆性故障模式。 (c)2017 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号