测定了集装箱板钢的高温力学性能,并比较钙处理和合金元素对其的影响.试验结果表明在1×10-3/s应变速率下,集装箱板钢连铸坯在凝固温度～600 ℃间存在两个脆性温度区域.细小的脆性夹杂物CaS优先析出并聚集在奥氏体晶界,使晶界进一步脆化,造成钙处理钢铸坯试样在第Ⅲ脆性区高温侧延塑性低于未经钙处理钢试样.为提高耐大气腐蚀能力而添加的合金元素P对其高温力学性能没有造成明显不利影响.同时结果表明集装箱板钢试样的零强度温度(ZST)在1 440～1 450 ℃左右,零延性温度(ZDT)在1 400～1 410 ℃左右.
参考文献
| [1] | Mintz B;Mohamed Z .Influence of Manganese and Sulfur on Hot Ductility of Steels Heated Directly to Temperature[J].Materials Science and Technology,1989,5(12):1212. |
| [2] | Suzhki H G .Satoshi Nishimura and Shigchiro Yamaguchi Characteristics of embrittlement in Steels Above 600 ℃[J].Tetsu To Hagane-Journal of The Iron and Steel Institute of Japan,1979,65:2038. |
| [3] | Suzuki H G;Satoshi Nishimura;Jun Imamura et al.Hot Ductility in Steels in the Temperature Range Between 900 and 600 ℃[J].Tetsu To Hagane-Journal of The Iron and Steel Institute of Japan,1981,67:1180. |
| [4] | Mintz B;Yue S;Jonas J J .Hot Ductility of Steels and its Relationship to the Problem of Transverse Cracking During Continuous Casting[J].International Materials Reviews,1991,36(05):187. |
| [5] | Reed Thomas.Free Energy of Formaiton of Binary Compounds[M].MIT Press,1971 |
| [6] | Elliott J F .Thermochemistry for Steelmaking[M].Adison-Wesley,1963,2 |
| [7] | 音谷登平;形浦安治;刘新华;韩郁文 , 蔡开科.钙洁净钢[M].北京:冶金工业出版社,1994 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%