• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Study of the Microstructural Basis for the Strength and Toughness Properties ofAs-Quenched and Quenched and Tempered High Copper HSLA-100 Steel
【24h】

Study of the Microstructural Basis for the Strength and Toughness Properties ofAs-Quenched and Quenched and Tempered High Copper HSLA-100 Steel

机译：淬火淬火高铜HsLa-100钢强度和韧性的显微组织基础研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This report discusses a program for the use of high copper HSLA-100 steel as areplacement for HY-130 in ship construction. The characterization of the microstructure of this highly weldable high copper HSLA-100 steel is extremely important to this program. In the present work, optical, scanning, scanning electron and transmission electron microscopy were employed to analyze and characterize the microstructural basis for the mechanical properties off as-quenched and quenched and tempered high copper HSLA-100 steel in form of 19.05 mm plate. The as-quenched and samples aged at 538 C and 621 C were examined in great detail. In the as-quenched condition the microstructure consisted of small packets of highly dislocated lath martensite containing autotempered iron carbides with small amounts of retained austenite present as thin films (200-300 A in width) at lath boundaries. The best combination of strength and toughness occurred in the sample aged at 538 C. Contributing to these desirable characteristics was the recovery of the dislocation substructures, the precipitation of coherent BCC copper precipitates (12-20 A in size) further precipitation (FeM)3C.

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