您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 8    No. 1    March 1998

[PDF Download]    [Flash Online]

    

COLD-WORKING AND HEAT-CRACKING IN Ni-Cu-BASE MONEL ALLOY K-500
Yuan Chao1, 2  Yang Hongcai1  Wang Zhixingand Guo Jianting2

1.Department of Materials Science and Engineering, Northeastern University, Shenyang110006, P. R. China;
2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang110015, P. R. China

Abstract:Cold-working and its effect on heat cracking of Monel alloy K-500 were investigated. The results showed that cold-working hardening is limited for its strong effect on heat cracking, although Monel alloy K-500 has good cold workability. It was revealed that the main reasons of heat cracking, which initiates on the surface of the specimens and propagates intergranularly into the inner during aging, are the residual stress due to cold working, the heat stress due to aging and the surface brittleness occuring in early aging stage. It was proved that mechanical straightening is a beneficial and economical method to prevent Monel alloy K-500 from heat cracking.

 

Key words: Monel alloy K-500 cold-working heat cracking mechanical straightening

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn