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16MnR钢焊接接头表面纳米化及接头抗H2S应力腐蚀性能
引用本文:王吉孝,王志平,霍树斌,王佳杰,熊天英.16MnR钢焊接接头表面纳米化及接头抗H2S应力腐蚀性能[J].焊接,2005(2):13-16.
作者姓名:王吉孝  王志平  霍树斌  王佳杰  熊天英
作者单位:1. 机械科学研究院哈尔滨焊接研究所,150080
2. 中国科学院金属研究所,沈阳市,110016
摘    要:采用超音速微粒轰击(Supersonic Particles Bombarding)技术对16MnR低合金钢焊接接头表面进行处理,利用金相显微镜和透射电镜对材料表面的微观组织进行分析。结果表明,经超音速微粒轰击处理可以使样品表层晶粒细化至纳米量级,表层晶粒尺寸平均为12.6nm,而且表层组织得到均一化。实验证实抗H2S应力腐蚀性能得到显提高。

关 键 词:焊接接头  表面纳米化  16MnR钢  晶粒细化  应力腐蚀  低合金钢  金相显微镜  处理  微粒  透射电镜
修稿时间:2004年7月21日

SURFACE NANOCRYSTALLIZATION OF 16MnR LOW ALLOY STEEL WELDED JOINTS AND INVESTIGATION ON RESISTING H2S STRESS CORROSION OF WELDED JOINT
Wang Jixiao,Wang Zhiping,Huo Shubin,Wang Jiajie,Xiong Tianying.SURFACE NANOCRYSTALLIZATION OF 16MnR LOW ALLOY STEEL WELDED JOINTS AND INVESTIGATION ON RESISTING H2S STRESS CORROSION OF WELDED JOINT[J].Welding & Joining,2005(2):13-16.
Authors:Wang Jixiao  Wang Zhiping  Huo Shubin  Wang Jiajie  Xiong Tianying
Abstract:A nanocrystalline surface layer was fabricated on 16MnR low alloy steel welded joint by using a supersonic particles bombarding(SSPB) technology. The microstructure of the material surface was analyzed by means of optical microscope and TEM. Experimental results showed that after the SSPB treatment for a short period time, the initial coarse-grained structure in the top surface layer was refined and formed the ultra-fine nanocrystalline grain. The mean grain in the surface layer is about 12.6 nm. Homogenization of microstructure of the surface of steel welded joints was achieved. At the same, the property resisting H_2S stress corrosion of 16MnR low alloy steel welded joint was enhanced significantly after the SSPB treatment.
Keywords:supersonic particles bombarding  surface nanocrystallization  16M nR low alloy steel  welded joint  resisting H_2S stress corrosion
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