Spinning and heat-treatment effects on performance and microstructure of maraging steel

被引：0

作者：

Hu Zheng-Fei ^{[1
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai 200092, Peoples R China

来源：

PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON MECHATRONICS, ROBOTICS AND AUTOMATION (ICMRA 2015) | 2015年 / 15卷

关键词：

maraging steel; spinning process; plastic deformation; heat-treatment; microstructure; PRECIPITATION; BEHAVIOR;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The effect of spinning and subsequent heat-treatment on mechanical performance and microstructure evolution has been investigated extensively. Thin-wall tube of 18Ni Co-free Maraging steel (T250) prepared by forward spinning process emerges obvious radial shrinkage behavior after heat-treatment and the magnitude of the shrinkage induced by solution is almost the same as that by aging. Microstructure investigation shows that the residual stress and stain induced by spinning process and reversed austenite forming during aging might have the similar contribution to the radical shrinkage phenomenon. Solution treatment resulted in a drastically refined grain and recrystallised in microstructure, removing the effect of plastic deformation and improving hardness. Subsequent aging obtained a tempered microstructure, enhancing hardness strikingly for precipitation strengthening.

引用

页码：1236 / 1242

页数：7

共 11 条

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