Effect of niobium on creep and creep crack growth of cast Ni–Cr austenitic steel
作者:
ZhuS. J.,
LiD. J.,
WangY.,
TianW. Q.,
XuS. G.,
WangF. G.,
期刊:
Materials Science and Technology
(Taylor Available online 1990)
卷期:
Volume 6,
issue 12
页码: 1193-1198
ISSN:0267-0836
年代: 1990
DOI:10.1179/mst.1990.6.12.1193
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractAn investigation of the effect of Nb on creep properties and creep crack growth rate in a 25Cr–35Ni–0·4C (wt-%) cast steel at 871 and 950°C was carried out. Tensile tests were also carried out at room temperature, 871, and 950°C. The tensile strength and elongation increased with an increase in Nb content at high temperatures. There existed an optimum Nb content for the creep properties and creep crack growth rate. Creep crack growth is controlled by creep deformation.MST/1222
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