CSP板坯_Q235B_高温力学性能试验研究_吴光亮.pdf

DOI牶牨牥牣牨牫牪牪牳牤j牣boyuan牣issn牥牬牬牴牠牱牬牴x牣牪牥牥牰牣牥牭牣牥牪牥 　41　 5 　Vol. 41, No. 5 　2 0 0 6 5 Iron and Steel May　2006 CSP (Q235B) 1, 3 2 1 2 3 吴光亮 , 　孙彦辉 , 　周春泉, 　蔡开科, 　李正邦 (1. , 417009; 2. , 100083;　3. , 100081) 　:Gleeble1500 CSP (Q235B); 800、900、1100 ℃、 。 :CSP Q235B 600 ～ 1320 ℃ 2 , 1320～ 1200 ℃Ⅰ 600 ～ 1000 ℃Ⅲ;1000 ～ 1200 ℃, Q235B 。 800 ℃Z 8. 46%。 Q235B Ⅲ :, ; ( lN)。 lN , , 、 , 。 :CSP ;Q235B;; :TG113.25　　: 　　:0449-749X(2006)05-0073-05 Study on High TemperatureMechanical Properties of CSP Q235B Slab 1, 3 2 1 2 3 WU Guang-liang , 　SUN Yan-hui , 　ZHOU Chun-quan , 　C I Ka-i ke , 　LI Zheng-bang (1. Chief Engineer Office, Lianyuan Iron and Steel Group Co. Ltd., Loudi 417009, Hunan, China; 2. Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China; 3. Technology Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China) Abstract:The high temperature mechanical properties of CSP slab have been investigated by Gleeble1500 hot simula- tor. The horizontal and vertical section of samples were observed by optical microscope and SEM at 800 ℃, 900 ℃, 1100 ℃. The morphology of fracture was analyzed by TEM, and segregation at grain boundaries and inclusions have been analyzed by XEDS. The test results showed that there are two temperature areas of brittleness for slab produced by CSP within 600 ～ 1320 ℃, the first temperature area of brittleness(Ⅰ)is 1320 ～ 1200 ℃, the second temperature area of brittleness(Ⅲ)is 600 ～ 1000 ℃, the steel is plastic with