|
|
Effect of Cold Rolling on Microstructure and Mechanical Properties of AISI 301LN Metastable Austenitic Stainless Steels |
HUANG Jun-xia1,YE Xiao-ning1,XU Zhou2 |
1. Shanghai Baosteel Research Institute, Shanghai 200431, China 2. School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
|
|
Abstract The microstructure and mechanical properties evolution of AISI 301LN metastable austenitic stainless steels during cold rolling were investigated. A wide range of cold thickness reduction (10%-80%) was carried out in a four-high rolling mill at ambient temperature. The X-ray and Feritscope MP30 were used to identify the strain-induced ����-martensite phase and its volume fraction, respectively. The microstructure was observed by optical micrograph and the mechanical properties were determined by tensile tests and microhardness. The results show that the strain-induced ����-martensite nucleated at the shear bands intersections and the growth of ����-martensite occurred by the repeated nucleation of new embryos. The volume fraction of strain-induced ����-martensite increased with increasing the cold rolling reduction. In addition, the percentage increased in the tensile strength is the same as that of hardness. The ratio between the average tensile strength and the average microhardness was found to range between 2.82 and 3.17.
|
Received: 09 June 2011
Published: 30 October 2012
|
Corresponding Authors:
Huang Junxia
E-mail: huangjunxia@baosteel.com
|
|
|
|
[1] |
Qiu-lin Niu,,Wei-wei Ming,Ming Chen,Si-wen Tang,,Peng-nan Li,. Dynamic mechanical behavior of ultra-high strength steel 30CrMnSiNi2A at high strain rates and elevated temperatures[J]. Chinese Journal of Iron and Steel, 2017, 24(7): 724-729. |
[2] |
Xue-feng She,*,Xiu-wei An,Jing-song Wang,Qing-guo Xue,Ling-tan Kong. Numerical analysis of carbon saving potential in a top gas recycling oxygen blast furnace[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 608-616. |
[3] |
Hong-bo Pan,,*,Meng-jiao Zhang,Wei-ming Liu,,Jun Yan,,Hui-ting Wang,Chang-sheng Xie,Zhan Guo. Effects of micro-alloying and production process on precipitation behaviors and mechanical properties of HRB600[J]. Chinese Journal of Iron and Steel, 2017, 24(5): 536-543. |
[4] |
Jun-feng Zhao,Shan-guang Liu,Xiao-guang Yuan,*,Jian-fei Sun,**,Hong-jun Huang, Fu-yang Cao,Hong-xian Shen,Yu-long Wang. Effect of Al22Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature[J]. Chinese Journal of Iron and Steel, 2017, 24(4): 469-474. |
[5] |
Feng Chen,Yu-feng Guo*,Tao Jiang,Fu-qiang Zheng,Shuai Wang,Ling-zhi Yang. Effects of high pressure roller grinding on size distribution of vanadium-titanium magnetite concentrate particles and improvement of green pellet strength[J]. Chinese Journal of Iron and Steel, 2017, 24(3): 266-272. |
[6] |
Lei Wang,Di Tang*,Yong Song. Prediction of mechanical behavior of ferrite-pearlite steel[J]. Chinese Journal of Iron and Steel, 2017, 24(3): 321-327. |
|
|
|
|