Study of solid solution strengthening of alloying element with phase structure factors  

作　　者：LIUYan LIUZhilin LIUWeidong ZHUYingguang 

机构地区：[1]CollegeofScience,NortheastUniversity,Shenyang110006,China [2]LiaoningInstituteofTechnology,Jinzhou121001,China

出　　处：《Progress in Natural Science:Materials International》2003年第1期69-73,共5页自然科学进展·国际材料（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 59631060)

摘　　要：Using the empirical electron theory of solids and molecules (EET), the phase structure factors, nAand nB, of the carbon-containing structural units with mass fraction of carbon (WC) below 0.8% and the mono-alloy structural units with -wc at 0.2% in austenite and martensite are calculated. The solid solution strengthening brought by C-containing interstitial solid solution and alloy-substi-tutional solid solution in 7-Fe and a-Fe is discussed at electron structural level. The coefficient (s) of solid solution strengthening is advanced according to the bonding force between atoms. The study shows that when the criterion is applied to the carbonaceous or alloying element-containing solid solution the results of calculation will coincide with the experimental result very well.Using the empirical electron theory of solids and molecules (EET), the phase structure factors, nA and nB, of the carbon-containing structural units with mass fraction of carbon (wC) below 0.8% and the mono-alloy structural units with wC at 0.2% in austenite and martensite are calculated. The solid solution strengthening brought by C-containing interstitial solid solution and alloy-substitutional solid solution in γ-Fe and α-Fe is discussed at electron structural level. The coefficient (s) of solid solution strengthening is advanced according to the bonding force between atoms. The study shows that when the criterion is applied to the carbonaceous or alloying element-containing solid solution the results of calculation will coincide with the experimental result very well.

关 键 词：phase structure factor (PSF) solid solution strengthening criterion of bonding force of solid solution strengthen-ing. 

分 类 号：TG113.12[金属学及工艺—物理冶金]