| 灰口铸铁等离子表面硬化处理后的组织与性能 |
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| 引用本文： | 刘秀杰,袁建军.灰口铸铁等离子表面硬化处理后的组织与性能[J].机电产品开发与创新,2008,21(3):19-21. |
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| 作者姓名： | 刘秀杰 袁建军 |
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| 作者单位： | 山东科技大学机电工程系,山东,泰安271019 |
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| 摘 要： | 利用常压等离子相变硬化设备对灰口铸铁进行了表面相变硬化处理,处理后铸铁熔凝层的显微组织为初生奥氏体＋莱氏体,固态相变硬化层的组织为隐针马氏体＋残余奥氏体＋片状石墨和少量磷共晶,铸铁的表面硬度明显高于基体硬度,并明显提高了灰口铸铁材料的耐磨性和使用寿命。
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| 关 键 词： | 灰口铸铁 等离子 相变硬化 显微组织 硬度 |
| 文章编号： | 1002-6673(2008)03-019-03 |
| 修稿时间： | 2008年2月28日 |
Structure and Properties of Plasma Phase-change Case Hardening for the Ash Iron Casting |
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| LIU Xiu-Jie,YUAN Jian-Jun.Structure and Properties of Plasma Phase-change Case Hardening for the Ash Iron Casting[J].Development & Innovation of Machinery & Electrical Products,2008,21(3):19-21. |
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| Authors: | LIU Xiu-Jie YUAN Jian-Jun |
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| Affiliation: | (Mechanical ＆ Electrical Engineering Department,Sandong University of Science and Technology,Taian Sandong 271019,China) |
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| Abstract: | The using constant Presses Plasma Phase-change Hardening equipment to carry out to the ash iron casting the surface Phase-change Hardening a processing,the microstructure of melt-solidified hardening layer of changed the ash iron casting was the early austenitic ＋ledeburite,The solid state hase-change hardening layer of the microstructure is concealed acerate martensite＋ remainder austenitic ＋sheet of graphite and a little phosphorus share crystalloid,The microhardness treated by plasma heat treatment is notably improved,and the wear resistance and operating life increase obviously. |
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| Keywords: | gray cast iron presses plasma phase-change hardening microstructure hardness |
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