利用光学金相显微镜和扫描电子显微镜研究了690合金一次冷轧管在中间退火过程中的组织演变规律,以及不同固溶处理制度对690合金二次冷轧管（成品尺寸管）的晶粒度和碳化物回溶行为的影响,并建立了退火过程中再结晶晶粒长大方程。试验结果表明：一次冷轧管中间退火最优工艺是1100℃/5 min,所建立的晶粒长大模型预测结果与实验值吻合很好,成品管经1100℃/3 min固溶后,平均晶粒尺寸在23.5μm左右,晶粒组织均匀,碳化物完全溶解。
Microstructure evolution of single-pass cold rolled alloy 690 alloy tube during intermediate annealing and effects of different solid-solution treatments on gain size and dissolution of carbides in the finished size tube were studied by means of optical microscope（OM） and scanning electron microscopy（SEM）,and the model and dynamic equation of recrystallized grain growth during annealing were established.The results show that the optimal intermediate annealing process for the cold rolled tube is at 1100 ℃ for 5 min.The grain size predicted by the proposed grain growth model well agrees with the experimental results.Uniform grains（average grain size about 23.5 μm） are observed in the alloy 690 solid-solution treated at 1100 ℃ for 3 min with full dissolution of carbides.
参考文献
| [1] | Sedriks A J.Inconel Alloy 690[M].Press of Hunting Alloys Ltd,1959 |
| [2] | Woei-Shyan Lee;Chen-Yang Liu;Tai-Nong Sun .Deformation behavior of Inconel 690 super alloy evaluated by impact test[J].Journal of Materials Processing Technology,2004(0):219-225. |
| [3] | 张钱珍,程世长,刘正东,刘荣佩,傅万堂.Inconel 690合金TT处理后的析出相[J].钢铁研究学报,2009(06):40-44. |
| [4] | 张松闯,郑文杰,宋志刚,丰涵,孙勇.冷变形对Inconel 690合金力学行为与组织的影响[J].钢铁研究学报,2009(12):49-54. |
| [5] | 宋志刚,丰涵,郑文杰.脱敏时间对690合金晶界贫铬区演变及晶间腐蚀倾向的影响[J].钢铁研究学报,2010(05):32-36. |
| [6] | 郝宪朝,陈波,马颖澈,高明,刘奎.热轧态Incone1690合金中碳化物的溶解和析出[J].材料研究学报,2009(06):668-672. |
| [7] | Thomas M;Angeliu;Gary S .Behavior of grain boundary chemistry and precipitates upon thermal treatment of controlled purity alloy 690[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1990,2!(08):2097-2107. |
| [8] | 李一鸣,任慧平,金自力,李德刚,田荣彬.低碳钢板冷轧退火组织和织构[J].材料热处理学报,2010(01):74-79. |
| [9] | 孔学云,王宝峰,金自力,任慧平,张晓燕.冷轧板再结晶退火中组织和织构演变的研究[J].材料热处理学报,2007(04):97-101. |
| [10] | 马凤仓,刘平,李伟,冯伟骏,王利.退火及固溶处理对Fe-Mn-C TWIP钢组织和性能的影响[J].材料热处理学报,2010(09):64-67. |
| [11] | 陈礼清,隋凤利,刘相华.Inconel 718合金方坯粗轧加热过程晶粒长大模型[J].金属学报,2009(10):1242-1248. |
| [12] | 朱红,董建新,张麦仓,胡尧和,谢锡善.固溶处理对Inconel 690合金组织影响[J].北京科技大学学报,2002(05):511-513,532. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%