SUPERPLASTIC PROPERTIES OF A FINE-GRAINED YTTRIA-STABILIZED TETRAGONAL POLYCRYSTAL OF ZIRCONIA

被引：118

作者：

NIEH, TG

MCNALLY, CM

WADSWORTH, J

机构：

[1] Lockheed Missiles & Space Co,, Palo Alto, CA, USA, Lockheed Missiles & Space Co, Palo Alto, CA, USA

来源：

SCRIPTA METALLURGICA | 1988年 / 22卷 / 08期

关键词：

STRAIN; -; STRESSES;

D O I：

10.1016/S0036-9748(88)80150-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Yttria stabilized tetragonal Zirconia polycrystal, Y-TZP, was subjected to high temperature tensile tests in a vacuum (10** minus **3 Pa). Superplasticity in fine-grained Y-TZP, as first reported by F. Wakai et al. has been demonstrated to be reproducible. In addition, a high elongation value of 350 percent has been obtained at 1550 degree C. The microstructure of the Y-TZP appears to be stable at 1450 degree C but grain growth takes place in specimens tested at 1550 degree C. 12 Refs.

引用

页码：1297 / 1300

页数：4

共 12 条

[1]

Edington J. W., 1976, PROG MATER SCI, V21, P61

[2] HIGH-TEMPERATURE DEFORMATION OF ULTRA-FINE-GRAINED OXIDE DISPERSION STRENGTHENED ALLOYS [J].