铸造工程
鑄造工程
주조공정
FOUNDRY ENGINEERING
2012年
4期
5-7
,共3页
刘春霆%张胤%张洁%任文强%牛芳
劉春霆%張胤%張潔%任文彊%牛芳
류춘정%장윤%장길%임문강%우방
高铬铸铁%氮化铬%碳化物%冲击韧度%硬度
高鉻鑄鐵%氮化鉻%碳化物%遲擊韌度%硬度
고락주철%담화락%탄화물%충격인도%경도
high chromium cast iron%chromium nitride%carbide%impact toughness%hardness
加入氮元素可改善高铬铸铁的力学性能。为了解氮对高铬铸铁的影响机制，通过Factsage和Imagepro plus对加氮的高铬铸铁进行相图模拟和碳化物形貌分析。研究发现，加氮后高铬铸件的冲击韧度和硬度都会受到影响。当加入质量分数0．07％的氮，冲击韧度达到6．4J／cm2；加氮量为O．4％时，硬度达到64．5HRC。
加入氮元素可改善高鉻鑄鐵的力學性能。為瞭解氮對高鉻鑄鐵的影響機製，通過Factsage和Imagepro plus對加氮的高鉻鑄鐵進行相圖模擬和碳化物形貌分析。研究髮現，加氮後高鉻鑄件的遲擊韌度和硬度都會受到影響。噹加入質量分數0．07％的氮，遲擊韌度達到6．4J／cm2；加氮量為O．4％時，硬度達到64．5HRC。
가입담원소가개선고락주철적역학성능。위료해담대고락주철적영향궤제，통과Factsage화Imagepro plus대가담적고락주철진행상도모의화탄화물형모분석。연구발현，가담후고락주건적충격인도화경도도회수도영향。당가입질량분수0．07％적담，충격인도체도6．4J／cm2；가담량위O．4％시，경도체도64．5HRC。
The mechanical properties of high chromium cast iron were improved by adding nitrogen. In order to understand the effects of nitrogen on high chromium cast iron, the phase diagram was simulated by Factsage, and the carbide morphology was analyzed by Imagepro plus. The results show that the impact toughness and hardness of high chromium cast iron are affected by nitrogen. When adding 0.07% of nitrogen, the impact toughness is 6.4 J/cm2. The hardness is to 64.5HRC after 0.4% of nitrogen.
