所属单位：冶金工程学院

发表刊物：JOURNAL OF IRON AND STEEL RESEARCH, INTERNATIONAL

关键字：中文关键字：时效；微观组织；机械性能；析出相，英文关键字：ageing; microstructure; mechanical property; preci

摘要：To investigate the effect of high temperature aging on the microstructure and mechanical properties of S31042 steel, solid solution treatment at 700℃ was carried out for various times from 10h to 6000h. Experimental results showed that the change of mechanical properties is closely related to the amount of precipitated phases. During aging from 10h to 300h, precipitation in the test steel increases rapidly, and correspondingly, the high temperature yield strength and room temperature hardness of test steel increase rapidly. Meanwhile, the thickness of the second phase on grain boundaries widens sharply and the room temperature Charpy impact absorb energy decreases. Beyond 300h aging, the precipitation in the steel increases gradually and its size coarsening to a certain extent. The high temperature yield strength of the steel keeps stable, and the room temperature Charpy impact energy and hardness decrease slowly. Beyond 3000h aging, the mechanical properties of the steel tend to be stable. The main precipitations are M23C6, NbCrN and NbC in test steel.

备注：SCI

合写作者：刘正东,包汉生,程世长

第一作者：王斌,王敬忠

论文类型：期刊论文

卷号：卷：20

期号：期：4

页面范围：页：54-58

是否译文：否

发表时间：2013-04-01