CSP工艺含钛耐候钢沉淀动力学研究(英文)  

Precipitation Kinetics of Weathering Steels with Ti Additive Produced by CSP Processing

作　　者：娄艳芝[1] 柳得橹[2] 罗庆洪[1] 

机构地区：[1]北京航空材料研究院,北京100095 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《现代科学仪器》2011年第2期109-112,共4页Modern Scientific Instruments

摘　　要：通过应力驰豫方法，在Gleeble-1500热模拟仪上测定了CSP工艺生产的含钛0.13％耐候钢的沉淀动力学曲线。研究结果表明：在830℃～980℃范围内等温驰豫时，含钛耐候钢中出现了多种析出相，其中包括钛的碳氮化物和碳硫化物，以及M2P型磷化物析出相；回火温度为900℃时，沉淀析出所用时间最短；测定了沉淀析出的PPT曲线。大量析出相的形核生长对含钛耐候钢的力学性能有重要影响。Precipitation kinetics curve of weathering steels, With 0.13mass%Ti and produced by Compact Strip Process （CSP）, was measured by the stress relaxation method on a Gleeble-1500 thermal simulator. The results showed that several precipitate phases appear in the samples in the temperature region from 830℃ to 980℃,which includes titanium carbonitrides, titanium carbon-sulfide, and M2P-type precipitates. The minimum period for the precipitations appearance occurs at about 900℃. PTT diagram was also determined. The appearance of large number of precipitates has obvious effects on the mechanics properties of the weathering steels.

关 键 词：耐候钢 CSP工艺 沉淀动力学 PTT曲线 

分 类 号：TG142.7[一般工业技术—材料科学与工程]