研究了成分和热变形对三种低碳微合金管线钢的连续冷却转变(CCT曲线)和组织的影响结果表明:在含碳量为0.025%的低碳微合金钢中加入0.3%的Mo能推迟铁素体、珠光体转变,扩大针状铁素体(Acicular ferrite)形成的冷却速度范围;高碳含量使针状铁素体向板条铁素体(Lath ferrite)转化热变形使针状铁素体的形成温度区间从400～500℃扩大到450～700℃,显著加速相变过程,使CCT曲线明显向左上方移动,获得针状铁素体的临界冷却速度增加,抑制板条铁素体的形成,有利于获得细的针状铁素体组织,并细化岛状组织,但对残余奥氏体量影响不大.
参考文献
| [1] | GAO Huilin(高慧临),The Microstructure,Propertiesand Welding of Pipeline Steel(管线钢组织、性能、焊接行为) (Xian, Shanxi Science and Technology Press, 1995) p.1 |
| [2] | A.J.Afaganis, K.R.Barmes, G.E.Hanson, R.G.Lessard, Development and Production of Large Diameter,High Toughness Gr.550(X80) Line Pipe at Steco. R&D Report 97H036:1 |
| [3] | W.B.Morrision, Past and Future Development of HSLA Steels. LIU Guoquan, WANG Funming, WANG Zubin, ZHANG Hongtao eds. HSLA Steels ' 2000[C], Beijing: Metallurgical Industry Press, 2000:11 |
| [4] | Y.E.Smith, A.P. Coldren, R.L.Cryderman, Toward Improved Ductility and Toughness, Tokyo, Climax Molybdennum Company (Japan) Ltd., 1972, 119 |
| [5] | Y.J.Oh, S.Y.Lee, J.S.Byun, et al. Non-Metallic Inclusions and Acicular Ferrite in Low Carbon Steels.Mater. T.JIM, 41(12), 1663(2000) |
| [6] | J.Y.Suh, J.S.Byun, J.H.Shum, Y.J.Oh, Y.W.Cho, J.D.Shim, D.N.Lee Acicular Ferrite Microstructure in Titanium Bearing Low Carbon Steels, Mater. Sci. Tech., 16, 1277(2000) |
| [7] | A.P. Coldren, R.L.Cryderman, Molybdenum-Containing Steels for Gas and Oil Industry Applications, a State-of-the-Art-Review, A Division of AMAX Inc., 1976, 14 |
| [8] | FANG Hongsheng(方鸿生),WANG Jiajun(王家军),YANG Zhigang(杨志刚),LI Chunming(李春明),BO Xiangzheng(薄祥正),ZHENG Yankang(郑燕康),The Bainite transformation(贝氏体相变)(Beijing,Science Press, 1999) p.23 |
| [9] | A.P.Coldren, Y.E.Smith, R.L.Cryderman, Microstrcture and Properties of Low-Carbon Mn-Mo-Nb Steels,Proceedings of AIME Symposium on Processing and Properties of Low-Carbon Steel, Cleveland, Ohio,October 1972 |
| [10] | T.Tanaka, Controlled Rolling of Steel Plate and Strip. International Metals Reviews, 26(4), 185(1981) |
| [11] | P.A.Manohar, T.Chandra, C.R.Killmore, Continuous Cooling Transformation Behavior of Microalloyed Steels containing Ti, Nb, Mn and Mo. ISIJ International, 36(12), 1486(1996) |
| [12] | R.W.Fonda, G.Spanos, The Effect of Industrial Composition Variation on the Transformation Behavior of Ultralow-Carbon Steels. Metall.Mater.Trans. A, 32A, 219(2001) |
| [13] | George Krauss, Steven W. Thompson, Ferritic Microstructure in Continuously Cooled Low-and Ultra lowCarbon Steel, ISIJ International, 35, 937(1995) |
| [14] | D.Q.Bai, S.Yue, T.M.Maccagno, J.J.Jonas Continuous Cooling Transformation Temperatures Determined Compression Tests in Low Carbon Bainitic Grades, Meta. Mater.Trans., 29, 989(1998) |
| [15] | V.M.Khlestov, E.V.Konopleva, H.J.Mcqeen, Kinetics of Austenite Transformation During Thermalmechanical Process. Canadian Metallurgical Quarterly, 26, 64(1998) |
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%