陈东风,李长生.激光冲击处理对3种新材料力学性能的影响[J].表面技术,2007,36(6):7-8,41.
CHEN Dong-feng,LI Chang-sheng.The Effect of Laser-shock Processing on Mechanical Properties of Three New Materials[J].Surface Technology,2007,36(6):7-8,41
激光冲击处理对3种新材料力学性能的影响
The Effect of Laser-shock Processing on Mechanical Properties of Three New Materials
投稿时间:2007-07-06  修订日期:2007-12-10
DOI:
中文关键词:  激光冲击  残余应力  磨损  镍基软磁合金
英文关键词:Laser shock processing  Residual stress  Wear  Cr-base magnetically soft alloy
基金项目:国防科工委民用配套项目子课题(MKPT -05-111)
作者单位
陈东风 江苏大学材料科学与工程学院,江苏镇江212013 
李长生 江苏大学材料科学与工程学院,江苏镇江212013 
AuthorInstitution
CHEN Dong-feng School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China 
LI Chang-sheng School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China 
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中文摘要:
      研究的镍、铬基软磁合金是应用在航天领域的继电器上的材料。以前研究其性能时只是注重磁性能,未研究力学性能。但在应用过程中,由于开关的开合,材料需承受循环应力的作用,所以其疲劳性能就比较重要。通过研究发现,这3种材料的力学性能较差。对材料进行激光冲击处理后发现,材料表面产生了较大的残余压应力,GYT130和GYT170分别提高了280%和170%,而1J36没有明显的提高。1J36、GYT130和GYT170材料的硬度分别提高了40%、25%、24%,耐磨性分别提高了67%、78%、760-/0。可以看出,激光处理使材料性能有较大的提高。
英文摘要:
      Ni-base and Cr-base magnetically soft alloy which is used on relay was researched. The former research just pay attention to its magnetism ability and does ' t study its mechanical property. But in its application process, fatigue properties is very important because the derail bears GYcle stress. The mechanical property was bad through research. The surfaces of the materials were processed by LSP ( laser shock processing) . The result shows that the suface has big residual stress, the residual stressess of GYT130 amd GYT170 are increased by LSP 2800-/% ,1700-/% , but lJ36 hasnt been sharp increased. The hardnessess of lJ36, GYT130 and GYT170 are increased by LSP 40% , 250% , 240% . The resistance to wear of lJ36, GYT130 and GYT170 is increased by LSP 670% , 780% , 760% . So we can see that LSP can improve materials properties.
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