Study on temper embrittlement control technique in steel 12Cr1MoV  

作　　者：LI Qing-fen CHEN Hong-bin LONG Ping CUI Xiu-fang 

机构地区：[1]School of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China [2]School of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China

出　　处：《Journal of Marine Science and Application》2006年第1期44-47,共4页船舶与海洋工程学报（英文版）

基　　金：SupportedbytheNationalNatureScienceFoundationofChina(No.59971042)andDoctoralSubjectSpecialFoundationofChineseEducationMinistry(No.20040217015).

摘　　要：Failure may occur catastrophically by fracture along grain boundaries when temper embrittlement induced by non-equilibrium grain-boundary segregation (NGS) of phosphorus atoms. Temper embrittlement control technigue based on the theory of NGS and deformation induced phase transformation method was studied in this paper. Grain refinement technique by deformation induced phase transformation in low-alloy steel,12Cr1MoV( which is used in steam pipeline of ships),was experimentally investigated. A single-pass hot rolling process by using a Gleeble-1500 system was performed and the experimental results showed that the grain sizes were obviously affected by the deforming temperature,strain,strain rate and the quenching cooling rate. Temper embrittlement may be controlled and obviously improved by grain refinement.

关 键 词：temper embrittlement grain refinement technique deformation induced phase transformation 

分 类 号：TG146.1[一般工业技术—材料科学与工程]