Journal of Northeastern University(Natural Science) ›› 2024, Vol. 45 ›› Issue (5): 643-651.DOI: 10.12068/j.issn.1005-3026.2024.05.005
• Materials & Metallurgy • Previous Articles
Jiu-xin ZHANG, Xiao-jian REN, Dong-zheng JIN, Yong TIAN
Received:
2022-12-12
Online:
2024-05-15
Published:
2024-07-31
CLC Number:
Jiu-xin ZHANG, Xiao-jian REN, Dong-zheng JIN, Yong TIAN. Effect of Austenite Grain Refinement on Microstructure and Properties of Ultra‑Heavy EH47 Crack Arrest Steel[J]. Journal of Northeastern University(Natural Science), 2024, 45(5): 643-651.
C | Si | Mn | P | S | Nb+Ti | Ni+Cr+Cu |
---|---|---|---|---|---|---|
0.05 | 0.15 | 1.95 | 0.008 | 0.002 | 0.052 | 1.03 |
Table 1 Chemical composition of the EH47 continuous
C | Si | Mn | P | S | Nb+Ti | Ni+Cr+Cu |
---|---|---|---|---|---|---|
0.05 | 0.15 | 1.95 | 0.008 | 0.002 | 0.052 | 1.03 |
编号 | 平均弦长/μm | 最大尺寸/μm | 体积分数/% |
---|---|---|---|
T890 | 1.4 | 5.5 | 2.0 |
T970 | 2.5 | 6.3 | 5.5 |
T1050 | 3.5 | 9.9 | 6.5 |
Table 2 Parameters of the M/A island of test rolled steels
编号 | 平均弦长/μm | 最大尺寸/μm | 体积分数/% |
---|---|---|---|
T890 | 1.4 | 5.5 | 2.0 |
T970 | 2.5 | 6.3 | 5.5 |
T1050 | 3.5 | 9.9 | 6.5 |
编号 | 屈服强度 | 抗拉强度 | 延伸率/% | 屈强比 |
---|---|---|---|---|
MPa | MPa | |||
T890 | 440 | 587 | 26.1 | 0.75 |
T970 | 467 | 610 | 26 | 0.76 |
T1050 | 488 | 636 | 23.3 | 0.77 |
Table 2 Tensile test results of test rolled steels
编号 | 屈服强度 | 抗拉强度 | 延伸率/% | 屈强比 |
---|---|---|---|---|
MPa | MPa | |||
T890 | 440 | 587 | 26.1 | 0.75 |
T970 | 467 | 610 | 26 | 0.76 |
T1050 | 488 | 636 | 23.3 | 0.77 |
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