0Cr18Ni9Ti不锈钢表面纳米化层的组织和性能
Microstructure and Properities of Surface Nanostructured Layer of 0Cr18Ni9Ti Stainless Steel
摘 要
采用高能喷丸对0Cr18Ni9Ti不锈钢棒材端面进行了表面自纳米化处理;利用扫描电子显微镜、透射电子显微镜、X射线衍射仪和显微硬度计对塑性变形层的组织和性能进行了表征.结果表明:在距表面70 μm左右的范围内形成了100 nm以下的等轴纳米晶;从基体到喷丸表面,变形层的显微组织依次为单相奥氏体、奥氏体和马氏体两相共存、单相马氏体;晶粒细化显著提高了塑性变形层的显微硬度.
0Cr18Ni9Ti不锈钢
纳米
显微硬度
high energy shot peening
0Cr18Ni9Ti stainless steel
nanometer
microhardness
Abstract
The cross section surface of 0Cr18Ni9Ti stainless steel bar was treated for nanograins by means of high energy shot peening(HESP).The microstructure and properties of the plastic deformation layer were characterized by using scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD) and microhardness tester.Results show that nanograins with less than 100 nm were gained at the range of 70 μm to the top surface.From matrix to treated surface,the microstructure of the deformation layer was in turn single-phase austenite,double-phase microstructure and single-phase martensite.In the plastic deformation layer the microhardness increased significantly because of the grain refinement.
中图分类号 TG142.1
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(50675234);重庆大学研究生院创新基金资助项目(200801A1B0100269)
收稿日期 2007/11/3
修改稿日期 2008/2/23
网络出版日期
作者单位点击查看
备注韩靖(1973-),男,贵州遵义人,博士研究生.
引用该论文: HAN Jing,SHENG Guang-min,HU Guo-xiong,ZHOU Xiao-ling,YAN Jing. Microstructure and Properities of Surface Nanostructured Layer of 0Cr18Ni9Ti Stainless Steel[J]. Materials for mechancial engineering, 2008, 32(11): 64～68
韩靖,盛光敏,胡国雄,周小玲,颜婧. 0Cr18Ni9Ti不锈钢表面纳米化层的组织和性能[J]. 机械工程材料, 2008, 32(11): 64～68
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参考文献
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【3】Schumacher S,Birringer R,Strauss R H Gleiter.Diffusion of silver in nanocrystalline copper between 303 and 373 K[J].Acta Metallurgica,1989,37(9):2485-2488.
【4】LU L,SUI M L,LU K.Superplastic extensibility of nanocrystalline copper at room temperature[J].Science,2000,287(2):1463-1466.
【5】Tong W P,Tao N R,Wang Z B,et al.Nitriding iron at lower temperatures[J].Science,2003,299(1):686-688.
【6】Wang Z B,Tao N R,Tong W P,et al.Diffusion of chromium in nanocrystalline iron produced by means of surface mechanical attrition treatment[J].Acta Materialia,2003,51(14):4319-4329.
【7】Wang Z B,Lu J,Lu K.Chromizing behaviors of a low carbon steel processed by means of surface mechanical attrition treatment[J].Acta Materialia,2005,53(7):2081-2089.
【8】Tong W P,Tao N R,Wang Z B,et al.Nitriding iron and 38CrMoAl steel with a nanostructrued surface layer[J].Journal of the Graduate School of the Chinese Academy of Science,2005,22(2):230-238.
【9】Zhang H W,Wang L,Hei Z K,et al.Low-temperature plasma nitriding of AISI 304 stainless steel with nano-structured surface layer[J].Z Metall,2003,94(5):1143-1147.
【10】Bei D H,Gu J F,Pan J H,et al.Gaseous nitriding process of surface nanocrystallized (SNCed) steel[J].Journal of Materials Science & Technology,2002,18(6):566-568.
【11】Birringer R,Gleiter H,Klein H P,et al.Nanocrystalline materials an approach to a novel solid structure with gas-like disorder?[J].Physics Letters A,1984,102(8):365-369.
【12】Lu K,Wang J T.Relationship between crystallization temperature and pre-existing nuclei in amorphous Ni-P alloys[J].Materials Science & Engineering,1988,97(1):399-402.
【13】Erb U,El-Sherik A M,Palumbo G,et al.Synthesis,structure and properties of electroplated nanocrystalline materials[J].Nanostructured Materials,1993,2(4):383-390.
【14】Valiev R Z,Korznikov A V,Mulyukov R R.Structure and properties of ultrafine-grained materials produced by severe plastic deformation[J].Materials Science & Engineering A,1993,168(2):141-148.
【15】卢柯,吕坚.一种形成纳米结构的机械方法和专用机械设备:中国,01122980.2[P].2001-07-27.
【16】Tao N R,Wang Z B,Tong W P,et al.An investigation of surface nanocrystallization mechanism in Fe by surface mechanical attrition treatment[J].Acta Materialia,2002,50(18):4603-4616.
【17】Tao N R,Sui M L,Lu J,et al.Surface nanocrystalliation of iron by ultrasonic shot peening[J].Nanostruct Mater,1998,11(4):433- 440.
【18】Liu G,Wang S C,Lou X F,et al.Low carbon steel with nanostructured surface layer induced by high-energy shot peening[J].Script Mater,2001,44(8):1791-1795.
【19】Wang Z B,Tao N R,Li S.Effect of surface nanocrystallization on friction and wear properties in low carbon steel[J].Materials Science and Engineering A,2003,352(1/2):144-149.
【20】Liu G,Lu J,Lu K.Surface Nanocrystallization of 316 stainless steel induced by ultrasonic shot peening[J].Materials Science and Engineering A,2000,286(1):91-95.
【21】Zhu K Y,Vassel A,Brisset F,et al.Nanostructure formation mechanism of α-titanium using SMAT[J].Acta Materialia,2004,52(14):4101-4110.
【22】胡国雄.金属材料表面自纳米化的制备、表征及其应用研究[D].重庆:重庆大学,2007.
【23】Lu K,Lu J.Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment[J].Materials Science and Engineering A,2004,375/377(7):38-45.
【24】Zhang H W,Hei Z K,Liu G,et al.Formation of nanostructured surface layer on AISI304 stainless steel by means of surface mechanical attrition treatment[J].Acta Materialia,2003,51(7):1871-1881.
【25】Wu X,Tao N,Hong Y,et al.γ→ε martensite transformation and twinning deformation in fcc cobalt during surface mechanical attrition treatment[J].Scripta Materialia,2005,52(7):547-551.
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