激光淬火基体对镀铬层断裂韧性的影响
Effect of Laser-Quenching Substrate on the Fracture Toughness of Chromium Plated Coatings
查看参考文献16篇
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文摘
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为提高30CrNi2MoVA钢镀铬身管的寿命,采用YAG激光器对钢基体进行激光搭接淬火再镀铬的复合工艺。用多裂纹拉伸技术对经激光搭接处理的30CrNi2MoVA钢再镀铬后的铬层和普通铬层的断裂韧性进行比较。结果表明,激光淬火处理基体可以提高镀铬层的断裂韧性。力学模型分析表明,基体残余压应力以抵抗基体拉伸变形的方式提高了铬层的断裂韧性;化学去基体法研究铬层界面表明,激光处理基体以细化基体影响层的晶粒形式提高了铬层的强度和韧性。离子刻蚀横截面对拉伸结果作了进一步验证。 |
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其他语种文摘
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In order to improve the life of Cr-plating gun bore made of 30CrNi2MoVA steel,a compound process,firstly laser overlap-quenching by YAG and then Cr-plating,was carried out for the steel substrate. By using multi-crack tensile method,the fracture toughness of Cr-coating produced by the compound process was comparatively analyzed with that of the ordinary Cr plated coating. The results show that the fracture toughness of Cr-coatings is improved by laser quenching substrate. The analysis of mechanical model shows that the fracture toughness is improved by residual compressive stress of substrate surface, which resists the tensile deformation of substrate. The study of Cr-coating interface by chemically removing substrate shows that the strength and toughness of the Cr-coating is improved, due lo the grain refining substrate effecting layer caused by laser processing substrate. The toughness improvement is further,verified by ion etching of the cross-section. |
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来源
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金属热处理
,2007,32(3):52-55 【核心库】
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关键词
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30CrNi2MoVA钢
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激光淬火基体
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镀铬
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断裂韧性
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地址
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中国科学院力学研究所, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0254-6051 |
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学科
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金属学与金属工艺;电子技术、通信技术 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:2719275
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参考文献 共
16
共1页
|
|
1.
张喜发.
火炮烧蚀内弹道学,2001:7-8
|
CSCD被引
1
次
|
|
|
|
|
2.
Sopok S. Thermal-chemical-mechanical gun bore erosion of an advanced artillery system part one:theories and mechanisms.
Wear,2005,258:671-283
|
CSCD被引
24
次
|
|
|
|
|
3.
John H Underwood. Thermal damage cracking and rapid erosion of cannon bore coatings.
Journal of Pressure Vessel Technology,2003,125:299-304
|
CSCD被引
32
次
|
|
|
|
|
4.
John H Underwood. Critical fracture processes in army cannons:A Review.
Journal of Pressure Vessel Technology,2003,125:289-292
|
CSCD被引
1
次
|
|
|
|
|
5.
陈光南. 提高镀铬身管寿命的激光强化新方法.
兵工学报,2003(增刊):6-10
|
CSCD被引
16
次
|
|
|
|
|
6.
Emmanuelle Harry. Cracking investigation of W and W(C)films deposited by physical vapor deposition on steel substrates.
Surface and Coatings Technology,1999,111:177-183
|
CSCD被引
1
次
|
|
|
|
|
7.
Hu M S. The cracking and decohesion of thin films on ductile substrate.
Acta Mater,1989,37(3):917-925
|
CSCD被引
1
次
|
|
|
|
|
8.
Uwe Holzwarth. Mechanical and thermomechanical properties of commercially pure chromium and chromium alloys.
Journal of Nuclear Materials,2002,300:161-177
|
CSCD被引
9
次
|
|
|
|
|
9.
Tabor D.
The hardness of metals,1951:105
|
CSCD被引
2
次
|
|
|
|
|
10.
Sima(A)o J. Hard chromium plating of EDT mill work rolls.
Journal of Materials Processing Technology,1999:281-287
|
CSCD被引
2
次
|
|
|
|
|
11.
李怀学. 初始镀铬层的基体溶解法研究.
材料热处理学报,2006,27(2):94-97
|
CSCD被引
5
次
|
|
|
|
|
12.
孙茂才.
金属力学性能,2003:126-129
|
CSCD被引
2
次
|
|
|
|
|
13.
Obergfell K. Classification of microstructural changes in laser hardened steel surfaces.
Materials Science and Engineering A,2003,355:348-356
|
CSCD被引
4
次
|
|
|
|
|
14.
Pina J. Residual stresses and crystallographic texture in hard-chromium electroplated coatings.
Surface and Coatings Technology,1997,96:148-162
|
CSCD被引
8
次
|
|
|
|
|
15.
Suresh S.
功能梯度材料基础,2000:91-94
|
CSCD被引
1
次
|
|
|
|
|
16.
徐向阳. 激光硬化基体对镀铬层组织和结合的影响.
中国激光,2006,33(3):413-416
|
CSCD被引
9
次
|
|
|
|
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