Effect of laser-remelting of surface cracks on microstructure and residual stresses in 12Ni maraging steel

被引：42
|
作者：
Grum, J [1 ]
Slabe, JM [1 ]
机构：
[1] Univ Ljubljana, Fac Mech Engn, SI-1000 Ljubljana, Slovenia
来源：
APPLIED SURFACE SCIENCE | 2006年 / 252卷 / 13期
关键词：
laser-remelting; maraging steel; microstructure; residual stresses; surface cracks;
D O I：
10.1016/j.apsusc.2005.06.060
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The paper presents the results of a study on possible application of laser-remelting to repair of narrow and comparatively deep cracks at the surface of highly thermo-mechanically loaded parts made of 12% Ni hot-working maraging tool steel. Laser-remelting of maraging steel is, due to very good weldability and flexibility of the process, very prospective for repair of fatigued surfaces of parts made of this steel at which the presence of surface microcracks may be observed. In addition to the efficiency of crack remelting, the influence of laser-remelting on the heat-affected zone in terms of its microstructure and residual stresses was also studied. The microstructure in the laser-remelted track is cellular/dendritic. In the heat-affected zone surrounding the laser-remelted track, the microstructure varies considerably. A microstructure analysis revealed, in the heat-affected zone, five microstructural zones and sub-zones. Residual stresses measured after laser-remelting are with reference to gradual through-depth changing of the stresses favourable. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：4486 / 4492
页数：7
相关论文
共 50 条
  • [1] Nanoscale evaluation of laser-based surface treated 12Ni maraging steel
    Grum, J
    Slabe, JM
    APPLIED SURFACE SCIENCE, 2005, 247 (1-4) : 458 - 465
  • [2] Effect of Heat Treatment on Microstructure and Property of 12Ni Co-Free Maraging Steel
    Zhao Rongda
    Li Diansheng
    Zhu Jingchuan
    Jiang Chengwen
    Lai Zhonghong
    Liu Yong
    RARE METAL MATERIALS AND ENGINEERING, 2011, 40 : 560 - 563
  • [3] Residual stresses after laser surface remelting
    Grum, J
    Sturm, R
    AMST'99: ADVANCED MANUFACTURING SYSTEMS AND TECHNOLOGY, 1999, (406): : 619 - 626
  • [4] Laser surface hardening of steel: Effect of process atmosphere on the microstructure and residual stresses
    Kostov, V.
    Gibmeier, J.
    Wanner, A.
    MECHANICAL STRESS EVALUATION BY NEUTRONS AND SYNCHROTRON RADIATION VI, 2014, 772 : 149 - 153
  • [5] The state of differently heat-treated 12% Ni maraging steel after laser remelting
    Grum, Janez
    Slabe, Janez Marko
    MATERIALS SCIENCE, TESTING AND INFORMATICS III, 2007, 537-538 : 647 - +
  • [6] Residual Stresses at Laser Surface Remelting and Additive Manufacturing
    Gusarov, A. V.
    Pavlov, M.
    Smurov, I.
    LASERS IN MANUFACTURING 2011: PROCEEDINGS OF THE SIXTH INTERNATIONAL WLT CONFERENCE ON LASERS IN MANUFACTURING, VOL 12, PT A, 2011, 12 : 248 - 254
  • [7] The influence of chemical composition on residual stresses in NiCoMo alloy deposits on 12 Ni maraging steel
    Bergant, Z.
    Grum, J.
    INTERNATIONAL CONFERENCE ON RESIDUAL STRESSES 9 (ICRS 9), 2014, 768-769 : 449 - 455
  • [8] Effect of remelting processes on the microstructure and mechanical behaviours of 18Ni-300 maraging steel manufactured by selective laser melting
    Song, Jun
    Tang, Qian
    Feng, Qixiang
    Han, Quanquan
    Ma, Shuai
    Chen, Hao
    Guo, Fuyu
    Setchi, Rossitza
    MATERIALS CHARACTERIZATION, 2022, 184
  • [9] Microstructure and residual stresses in surface layer of simultaneously laser alloyed and burnished steel
    Radziejewska, J.
    Skrzypek, S. J.
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (04) : 2047 - 2056
  • [10] Effect of direct energy deposition parameters on morphology, residual stresses, density, and microstructure of 1.2709 maraging steel
    Aleksandr, Kulish
    Ferdinando, Salvatore
    Joel, Rech
    Joel, Courbon
    Jordan, Munoz
    Thomas, Joffre
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2021, 117 (3-4): : 1287 - 1301
12345