热处理
熱處理
열처리
HEAT TREATMENT
2015年
2期
28-31
,共4页
刘爱军%刘宁%汪前进%李其龙
劉愛軍%劉寧%汪前進%李其龍
류애군%류저%왕전진%리기룡
SiC-钢复合材料%显微组织%力学性能%回火
SiC-鋼複閤材料%顯微組織%力學性能%迴火
SiC-강복합재료%현미조직%역학성능%회화
SiC-steel composite%microstructure%mechanical property%tempering
研究了电冶熔铸4% SiC-钢复合材料经不同温度回火后的组织和力学性能。结果表明,随着回火温度的升高,SiC-钢复合材料的硬度(HRC)和基体的显微硬度下降,抗弯强度和断裂韧度上升。回火过程中该复合材料的显微组织变化主要是马氏体分解、残留奥氏体转变和部分碳化物均匀化。
研究瞭電冶鎔鑄4% SiC-鋼複閤材料經不同溫度迴火後的組織和力學性能。結果錶明,隨著迴火溫度的升高,SiC-鋼複閤材料的硬度(HRC)和基體的顯微硬度下降,抗彎彊度和斷裂韌度上升。迴火過程中該複閤材料的顯微組織變化主要是馬氏體分解、殘留奧氏體轉變和部分碳化物均勻化。
연구료전야용주4% SiC-강복합재료경불동온도회화후적조직화역학성능。결과표명,수착회화온도적승고,SiC-강복합재료적경도(HRC)화기체적현미경도하강,항만강도화단렬인도상승。회화과정중해복합재료적현미조직변화주요시마씨체분해、잔류오씨체전변화부분탄화물균균화。
Microstructure and mechanical properties of an electro-melted and cast 4% SiC-steel composite tempered at different temperatures were investigated.The results show that with the increase of tempering temperature the both hardness (HRC)of SiC-steel composite and the microhardness (HV0.2)of matrix decrease,and the both bending strength and fracture toughness increase,and that main microstructure conversions during tempering are martensite decomposition,residual austenite transformation and partial carbide homogenization.