金属磁记忆技术用于再制造毛坯寿命评估初探

董丽虹<sup>1</sup>; 徐滨士<sup>1</sup>; 董世运<sup>1</sup>; 王丹<sup>2</sup>

引用本文:	董丽虹，徐滨士，董世运，王丹.金属磁记忆技术用于再制造毛坯寿命评估初探[J].中国表面工程,2010,(2):106~111
	DONG Li–hong, XU Bin–shi, DONG Shi–yun, WANG Dan.Progress in Life Prediction of Remanufacturing Blanks by Using Metal Magnetic Memory Testing[J].China Surface Engineering,2010,(2):106~111

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金属磁记忆技术用于再制造毛坯寿命评估初探
董丽虹，徐滨士，董世运，王丹^1,2
1.装备再制造技术国防科技重点实验室，北京 100072;2.海军装备研究院，北京100073

摘要:

剩余寿命预测是再制造工程的核心内容之一，金属磁记忆技术在再制造毛坯寿命预测领域极具潜力。文中概述了金属磁记忆信号的特征、微观物理检测机制的研究结果，探讨了利用金属磁记忆技术表征疲劳裂纹萌生及扩展寿命的途径和方法，并介绍了该技术在再制造毛坯寿命评估领域的初步应用

关键词: 再制造毛坯金属磁记忆技术磁畴结构疲劳裂纹寿命预测

DOI：

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基金项目:国家自然基金项目（50735006，50975283），国家973计划项目（2007CB607601）

Progress in Life Prediction of Remanufacturing Blanks by Using Metal Magnetic Memory Testing

DONG Li–hong, XU Bin–shi, DONG Shi–yun, WANG Dan^1,2

1. National Key Laboratory for Remanufacturing, Beijing 100072;2. Navy Academy of Armament, Beijing 100073

Abstract:

The residual life prediction is one of the cores of the remanufacturing engineering. Metal magnetic memory testing (MMMT) is a highly promising tool in this field. This paper gives a presentation of results of basis theory researches on the essence of MMMT signals, the micro-physical testing mechanism. The prediction approach of fatigue crack initiation life and fatigue crack propagation life is determined by means of MMMT. The application of MMMT in remanufacturing blank life prediction is also introduced at the end of the paper.

Key words: remanufacturing blank metal magnetic memory, magnetic domain fatigue crack life prediction