Microalloying Steels with 800 MPa Yield Strength

LIU Delu; FU Jie; KANG Yonglin; WANG Yuanli; WANG Yanli; DI Lin

doi:10.13374/j.issn1001-053x.2001.04.019

Volume 23 Issue 4

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2001 > 23(4): 357-361

LIU Delu, FU Jie, KANG Yonglin, WANG Yuanli, WANG Yanli, DI Lin. Microalloying Steels with 800 MPa Yield Strength[J]. Chinese Journal of Engineering, 2001, 23(4): 357-361. doi: 10.13374/j.issn1001-053x.2001.04.019

Citation:

LIU Delu, FU Jie, KANG Yonglin, WANG Yuanli, WANG Yanli, DI Lin. Microalloying Steels with 800 MPa Yield Strength[J]. Chinese Journal of Engineering, 2001, 23(4): 357-361. doi: 10.13374/j.issn1001-053x.2001.04.019

Citation:

PDF( 731 KB)

Microalloying Steels with 800 MPa Yield Strength

doi: 10.13374/j.issn1001-053x.2001.04.019

1. Department of Material Physics and Chemistry, UST Beijing 100083 Beijing China;
2. Metallurgy School, UST Beijing;
3. Department of Metal Forming, UST Beijing

Received Date: 2001-02-12

Abstract

Abstract

Mecbanical Properties and microstructure of low carbon manganese clean steels microalloyed with Nb, Ti, B were studied. High levels of yield strength (>800 MPa) have been attained in the tempered steel containing 0.06%C,2.3%Mn, 0.21%Al and small amount of Nb, Ti, V, B. The elongation elongation of this steel is more than 14% and V-notch toughness is 134~174.5 J/cm² and 103~110J/cm² at room temperature and -40 respectively. Very for bainitic structure (with lath width in micrometer or less) was observed in the steel. Effects of deformation as well as Al additive on the austenite-bainite transformation and mechanical properties have been investigated.
- clean micro-alloying steel,
- bainitic transformation,
- microstructure and mechanical properties,
- boron containing steel