• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Factors Affecting Toughness and Corrosion Resistance of AA6082 Forgings
【24h】

Factors Affecting Toughness and Corrosion Resistance of AA6082 Forgings

机译：影响AA6082锻件韧性和耐腐蚀性的因素

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

AA6082 extruded bars were annealed and then hot-deformed at 693 K, cold-deformed at room temperature (RF), or treated at sub-zero temperatures (CF). After the solution and the aging treatment, the mechanical properties of the samples were tested. The experimental results demonstrate that the hot-deformed samples were stronger but less elongated than the RF and CF samples. All hot-deformed (HF), RF, and CF samples had mechanical properties that exceeded UTS > 310, YS > 260 MPa and an elongation > 10%. The RF and CF samples greatly enhance elongation (up to 16%) and toughness in addition to moderate strength (UTS >= 320 and YS >= 295 MPa). Affected by having high fractions of high misorientation angle grain boundaries (MAGBs) per unit area in the matrix, the RF and CF samples deteriorated their corrosion resistance by degrading Ecorr values. The surface of corroded HF50 was recorded to confirm that the particles were attacked by chloride and oxidized. Increasing the total lengths of high-MAGBs and particle counts per unit area accelerated corrosion to lift up Icorr values.
机译：对AA6082挤压棒材进行退火，然后在693 K下进行热变形，在室温（RF）下进行冷变形，或在零下温度（CF）下进行处理。在溶液和老化处理后，测试了样品的力学性能。实验结果表明，与RF和CF试样相比，热变形试样强度更大，但伸长更小。所有热变形（HF）、RF和CF样品的机械性能均超过UTS>310、YS>260 MPa和伸长率>10%。RF和CF样品除了中等强度（UTS>=320和YS>=295 MPa）外，还大大提高了延伸率（高达16%）和韧性。由于基体中每单位面积有高比例的高错取向角晶界（MAGB），RF和CF样品通过降低Ecorr值而恶化了其耐腐蚀性。记录受腐蚀HF50的表面，以确认颗粒受到氯化物的侵蚀和氧化。增加高MAGBs的总长度和每单位面积的颗粒数会加速腐蚀，从而提高Icorr值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号