热处理
熱處理
열처리
HEAT TREATMENT
2014年
6期
18-20
,共3页
王琦%卢军%王静%沈育伟%孙维超
王琦%盧軍%王靜%瀋育偉%孫維超
왕기%로군%왕정%침육위%손유초
热作模具钢%力学性能%热稳定性
熱作模具鋼%力學性能%熱穩定性
열작모구강%역학성능%열은정성
hot work die steel%mechanical property%thermal stability
对GMH20、PH25、DIEVAR和H13热作模具钢进行了力学性能和热稳定性试验。结果表明，经过相同工艺真空热处理处理后，GMH20钢、PH25钢和DIEVAR钢的塑性明显优于 H13钢，硬度也比H13钢高；综合来看，GMH20和DIEVAR钢的力学性能最佳。此外，随着在610℃保温时间的延长，这4种钢的硬度越来越接近，约为35 HRC。
對GMH20、PH25、DIEVAR和H13熱作模具鋼進行瞭力學性能和熱穩定性試驗。結果錶明，經過相同工藝真空熱處理處理後，GMH20鋼、PH25鋼和DIEVAR鋼的塑性明顯優于 H13鋼，硬度也比H13鋼高；綜閤來看，GMH20和DIEVAR鋼的力學性能最佳。此外，隨著在610℃保溫時間的延長，這4種鋼的硬度越來越接近，約為35 HRC。
대GMH20、PH25、DIEVAR화H13열작모구강진행료역학성능화열은정성시험。결과표명，경과상동공예진공열처리처리후，GMH20강、PH25강화DIEVAR강적소성명현우우 H13강，경도야비H13강고；종합래간，GMH20화DIEVAR강적역학성능최가。차외，수착재610℃보온시간적연장，저4충강적경도월래월접근，약위35 HRC。
Several hot work die steels,including GMH20,PH25,DIEVAR and H13 steels,were subjected to mechanical property and thermal stability tests.The results show that after being vacuum heat treated by the same process the GMH20,PH25,DIEVAR steels offer much better plasticity and higher hardness relative to H13 steel, and that,to sum up,the mechanical properties of GMH20 and DIEVAR steels are optimum.In addition,as the holding time at 610 ℃ becomes longer the hardness of such steels nears progressively to about 35 HRC.
