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TA17合金冷轧板材表面条状裂纹缺陷成因分析 被引量:4

Cause Analysis of Strip Cracks on Surface of TA17 Alloy Cold-rolled Sheet
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摘要 针对TA17合金冷轧板材表面沿着轧制方向出现的大量条状裂纹,利用体视镜、扫描电镜及能谱仪进行分析。形貌分析表明:裂纹多呈现锯齿状,长度一般在10~30 mm,深度很浅,小于10μm,且无明显的裂纹尖端。成分分析表明:裂纹处氧元素含量高,但完好的表面无明显的氧元素存在。判断裂纹的出现主要与冷轧板表面残留氧化层有关。 Strip cracks along rolling direction on the surface of TA17 alloy cold-rolled sheet were ob- served by stereoscope, SEM and EDS. Morphology observation indicated that cracks were dominantly in zigzag shape, with 10 - 30 mm in length and less than 10 μm in depth, and there was no evidence of crack tips. Chemical composition analysis showed that crack regions were characterizd by high oxygen concentration while the intact surface was at normal oxygen level. Test results suggest that the occurrence of strip cracks were mainly related to residual oxide on the surface of TA17alloy cold-rolled sheet.
出处 《钢铁钒钛》 CAS 北大核心 2013年第1期26-30,共5页 Iron Steel Vanadium Titanium
基金 四川省科技支撑计划项目(13ZC2167)资助
关键词 钛合金 TA17 冷轧板 表面条状裂纹 titanium alloy, TA17, clod-rolled sheets, surface strip cracks
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