机械工程与自动化
機械工程與自動化
궤계공정여자동화
MECHANICAL ENGINEERING & AUTOMATION
2014年
2期
105-106
,共2页
马氏体时效钢%固溶%时效%热处理工艺
馬氏體時效鋼%固溶%時效%熱處理工藝
마씨체시효강%고용%시효%열처리공예
maraging steel%solution%aging%heat treatment process
采用正交试验法探究了固溶温度、固溶时间、时效温度及时效时间对提高18Ni (2240 M Pa级)马氏体时效钢力学性能以及细化晶粒所发挥的作用,并研究了其最佳热处理工艺。研究表明,固溶时间的影响最为显著,时效时间的影响最不明显。将晶粒平均直径细化到Φ7μm时,抗拉强度可提高约100 M Pa。
採用正交試驗法探究瞭固溶溫度、固溶時間、時效溫度及時效時間對提高18Ni (2240 M Pa級)馬氏體時效鋼力學性能以及細化晶粒所髮揮的作用,併研究瞭其最佳熱處理工藝。研究錶明,固溶時間的影響最為顯著,時效時間的影響最不明顯。將晶粒平均直徑細化到Φ7μm時,抗拉彊度可提高約100 M Pa。
채용정교시험법탐구료고용온도、고용시간、시효온도급시효시간대제고18Ni (2240 M Pa급)마씨체시효강역학성능이급세화정립소발휘적작용,병연구료기최가열처리공예。연구표명,고용시간적영향최위현저,시효시간적영향최불명현。장정립평균직경세화도Φ7μm시,항랍강도가제고약100 M Pa。
The roles played by the solution temperature ,solution time and aging temperature ,aging time in improving the mechanical properties and its grain refining process of 18Ni (2 240 MPa grade)maraging steel were studied with the orthogonal test ,and the optimized heat treatment process was investigated .The results show that the effects of solution time is the most significant and the aging time is almost negligible .The tensile strength can increase about 120 MPa by refining the average grain diameter to 7 μm .