冷拔+中间退火2169N奥氏体不锈钢管材的织构与扩口性能

Suxing Gongcheng Xuebao/Journal of Plasticity Engineering(2014)

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Abstract
利用X射线衍射技术研究冷拔+中间退火2169N奥氏体不锈钢管材的织构转变,及其对管材扩口性能的影响.结果表明,2169N钢的层错能为27.7M·J/m2,属低层错能级别,变形方式为机械孪生.管材存在{113}<121>主织构组分、{111}<uvw>和{110}<001>次织构组分.{110}<001>织构为管材冷拔时产生,{110}<001>和{111}<uvw>织构为管材中间退火转变而成,{113}<121>织构为{110}<112>经<111>旋转约40°转变生成.管材{113}<112>主织构组分、{111}<uvw>和{110}<001>次织构组分均表现出较高的R值,不利于管材厚度方向塑性变形,影响扩口工艺性能.
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Key words
2169 austenitic stainless steel,texture,flaring,tube
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