中国工程科学
中國工程科學
중국공정과학
ENGINEERING SCIENCE
2014年
1期
54-58
,共5页
刘自权%谭小东%杨小龙%许云波%吴迪%王国栋
劉自權%譚小東%楊小龍%許雲波%吳迪%王國棟
류자권%담소동%양소룡%허운파%오적%왕국동
热轧%低碳TRIP钢%轧制工艺%疲劳性能%疲劳断口
熱軋%低碳TRIP鋼%軋製工藝%疲勞性能%疲勞斷口
열알%저탄TRIP강%알제공예%피로성능%피로단구
hot-rolling%low-carbon TRIP steel%rolling process%fatigue property%fatigue fracture
对比研究了现场不同工艺所得碳锰系车轮用钢及低碳低硅含磷铬系相变诱发塑性(TRIP)钢的力学性能、微观组织、疲劳性能和疲劳断口。结果显示,较传统碳锰系车轮用钢,新型TRIP钢具有相当的屈服强度,抗拉强度明显提高了100~150 MPa,疲劳极限提高了50~140 MPa。疲劳极限随抗拉强度的提高有增大趋势。铁素体、贝氏体、残余奥氏体组织较铁素体、贝氏体、珠光体组织和铁素体、珠光体、马奥岛组织具有更好的疲劳性能。
對比研究瞭現場不同工藝所得碳錳繫車輪用鋼及低碳低硅含燐鉻繫相變誘髮塑性(TRIP)鋼的力學性能、微觀組織、疲勞性能和疲勞斷口。結果顯示,較傳統碳錳繫車輪用鋼,新型TRIP鋼具有相噹的屈服彊度,抗拉彊度明顯提高瞭100~150 MPa,疲勞極限提高瞭50~140 MPa。疲勞極限隨抗拉彊度的提高有增大趨勢。鐵素體、貝氏體、殘餘奧氏體組織較鐵素體、貝氏體、珠光體組織和鐵素體、珠光體、馬奧島組織具有更好的疲勞性能。
대비연구료현장불동공예소득탄맹계차륜용강급저탄저규함린락계상변유발소성(TRIP)강적역학성능、미관조직、피로성능화피로단구。결과현시,교전통탄맹계차륜용강,신형TRIP강구유상당적굴복강도,항랍강도명현제고료100~150 MPa,피로겁한제고료50~140 MPa。피로겁한수항랍강도적제고유증대추세。철소체、패씨체、잔여오씨체조직교철소체、패씨체、주광체조직화철소체、주광체、마오도조직구유경호적피로성능。
The mechanical properties , microstructures , fatigue properties and fatigue fractures of the conventional C-Mn wheel steels and the low-carbon low-silicon phosphorus/chromium-contained transformation induced plasticity(TRIP)steel were investigated. Results revealed that the new-type TRIP steel possessed similar yield strength , tensile strength increased by 100~150 MPa and fatigue limit increased by 50~140 MPa,compared with the conventional C-Mn wheel steels. The fatigue limit increased with the increase of the tensile strength. The steel containing ferrite,bainite and retained austenite had a higher fatigue limit than the steel containing ferrite,bainite and pearlite or steel containing ferrite,pearlite and martensite-austenite islands.