3Cr2W8V钢高温磨损的研究

3Cr2W8V钢高温磨损的研究 2008??1?B ?-33???-1?, ?????O???2 LUBRICATIONENGINEERING Jan12008 Vol133No11 3:?????2???????????????????????b???????? (Kjx)1 6 ???3????????(8@n),?????n???,,?n?????G?E???? ??h2????????1288@611 3Cr2W8V?????H???????n?? 3 ( ?????5???????????O???C????h??????P??212013) ????:???;?????N???H?????????d??3Cr2W8V?????????H????????,?n?????????H????3Cr2W8V???????5?????? ??,???;SEMh2EDSh2XRD?L?????????z?E?Lh2??????????,???????H?????d?uh0?n?????O,?????H????3Cr2W8V?? ???H???????R?k?b??????h01050??1150r8?8??????,??????????;?????o?????H??????,???????b???P??h03Cr2W8V ???????????5?o?????C???????,???O?b?????5????,???;?????e?????????????5?o??h03Cr2W8V?????H?????d?u?d?5 ?o???????????Zh0 ???s??:?????r??;3Cr2W8V??;???H????;?????H??;???? ?e???L????:TH11711h????s?U???2:Ah??????o??:0254-0150(2008)1-051-3 ResearchonHighTemperatureWearof3Cr2W8VSteel WangFengh?WangShuqih?CuiXianghongh?ChenKangmin (SchoolofMaterialScienceandEngineering,JiangsuUniversity,ZhenjiangJiangsu212013,China) Abstract:Hightemperatureweartestsfor3Cr2W8Vsteelwereperformedbyapin2on2diskhightemperaturewearappa2 ratus.Theeffectsofquenchingtemperaturesonwearresistanceof3Cr2W8Vsteelwerestudied.Thecompositions,images andstructureofwornsurfaceswereanalyzedusingSEM,EDSandXRD.Thewearmechanismwasdiscussed.Theresults showthatquenchingtemperaturehasapparentinfluencesonwearrateof3Cr2W8Vsteel.The3Cr2W8Vsteelquenchedat 1050??1150r8exhibitslowerwearrate.Asquenchedatlowerorhighertemperatures,thewearrateofthesteelismar2 ginallyincreased.Theapparentdeformationisfoundtoexistinmatrixunderoxidefilm,accompanyingwithcrackandox2 ide.Themechanismofhightemperaturewearfor3Cr2W8Vsteelisfatiguedelaminationofoxide. Keywords:hot2workingdie;3Cr2W8Vsteel;hightemperaturewear;quenchingtemperature;microstructure h?3Cr2W8V???c?????2?????????d?5?????r????, ?????????;???????rh2???M???rh2???v?r?Q,???R?? ?????v?@?????5??h2?d???????????5???????1?L???? ?5?? [1-4] h0???H???????r???d???????c?????r?????? ???v?????i?/???N [5] ,?????o???3???????????H???? ???d?????5?????n?? [6-10] ,?%??3Cr2W8V?????H?? ???5?????n?????Gh0?n??3Cr2W8V???????H?????? ?d,??????3Cr2W8V???????r???????;???????R?? ?????U???N?Qh0?-?????3?n??3Cr2W8V???????H?? ???5??,?????????????d?uh0 1h??????????????? ?????;3Cr2W8V?????v???o???E?L????1?k?dh0 3Cr2W8V?????p???H??Ac1?d830r8h2Acm?d1100r8h2 Ms?????d350r8 [11] ,???????;?????1?L?????d:?L ?4???;?????H??900h21050h21150h21250r8???N?? ?o25min????,?u?O?;580r8????2hh0 ??1h?3Cr2W8V???o???E?L(?;???L??) h?h?Table1h?Compositionsof3Cr2W8Vsteelh?h?h?% CCrWVSih2MnPh2S 0130??01402120??21707150??91000120??0150W?0140W?01030 h????;MG2200?????N???H?????????????d,???? ???H????????????h0?H???i???????9???t?????H???? ?????H???????Hh0?????f?d3Cr2W8V??(<6mm?? 12mm),???????dCr12MoV??,?????dHRC62 (<70mm??8mm)h0 ?q??3Cr2W8V???;???9???;?e?O???????????? ???????????r???????H??(?d400??500r8),???? ???????????????d:?????H??400r8,????100N, ?????,??1m/s,???r????????20min,???r?????? ??112??10 3 mh0 ???;?????t??(AMRA21000B)?????????????7 ???????????????O?L??,?;?o?0X28?t???? ???L?????L???????????d?E?L;???;X2y???1?? (Dx25R)?L???????????E??h0 smc04004 :2007-0-19 :197: Email:miracle9012com JA40A ra /ma200/pcigaku 2h????????????L?? 211h?3Cr2W8V???????H?????? ??1h??????H????3Cr2W8V???? ???????????????? Fig1h?Variationofwearrate andhardnesswithque2 nchingtemperatureof 3Cr2W8Vsteel ??1?d?????????H ????3Cr2W8V???????? ????????????h0?????C ???????H????3Cr2W8V ?????????????????R?k ?b????????h0???????H ?????P??,?i???????? ?K?????o?????????N?? ?e,???N???e?????R?5 ?????????B???[?@,?? ???O580r8????,???? ???????????H???????? ?E?E?I?P,?A???????? ???/?????O?????,?P??,1050??1150r8?8??????,?? ????????;?????o?????H??????,???????b???P??h0 ?;1050r8????h2580r8???????R????????????h0 ???????H???d900r8??,?d?T????????,?i???R ???K???7?????o??,???N???e?4???????????B???[ ?@,?????O580r8???????f??????????,?dHRC44, ??????????????????h0???????H???P???h1250r8 ??,?5???????o???????????N???e,?????????????B ???4???5?d????,???N???????O?b???5,?????O???h ???????5?????N??(????2(a)),???;???O?????? ???C?????N???e???????????K??M2C??M6C?????o ??,???????????????u???h????(HRC54),?%???? ???b???P??h0?;1050??1150r8?8??????????,???N ???o?H???1??Acm?]??,???????e???R???????????o ??,???N?????????7???,?b?????5,???h?d???5???? ?????????N??(????2(b))h0 ??2h?3Cr2W8V?????????? Fig2h?Quenchingmicrostructuresof3Cr2W8Vsteel 212h??????d?u?L?? ??3?d????3Cr2W8V???????H?????????????? ?E?Lh0?????C??,???????????L?d???Z?d???7???Z ?d,?;???Z?d???R???K???N??????h0????3()?e h2?M??????DS?L??????,???Z?d?????4?5?? ?O?b?????7???Z?d??2??h0?i?????????d?7???Z?d?? ?;?5?????5?o??,?A???Z?d?i???5?o???????Z?A???? ???4?5???O?b????h0 ??3h?3Cr2W8V???????H??????????????EDS?L?? h?Fig3h?SEMimageandEDSanalysisofthewornsurface of3Cr2W8Vsteelunderhightemperaturewear ??4?d3Cr2W8V?????H??????????X2ray???1?L ??????h0???????????????5?o???dFe3O4??Fe2O3h0 Fe2O3??Fe3O4???R?R?/?????????;,???eFe3O4?? ???;?5??Fe2O3 [13] ,?????????????h???????;h0?%?? ??????,?5?o???????L?5???5,?;?o?????;?C?5?o?? ???a???,?????A?,???????????????????,???????Zh0 ???Z?C?????5?o???????L????????????,?@?E????; ???????L?;???????????????E??????,???????;???Z ?d??,???????????d,3Cr2W8V???????H?????d?u ?d?5?o???????????Zh0 ??4h?3Cr2W8V????????X2ray???1?L?? Fig4h?XRDanalysisofthewornsurfaceof3Cr2W8Vsteel ?5?o???????2?????Z???N?????????k3W8V ?????????????5?N,?A?5?o???????5?????Z?O?????? ?????R?k???U??????h0??5?d????3W8V?????H 25?????O???2?-33?? a 12E1 Cr2 Cr2 3Cr2W8V???????????5?o ?????C???????,???O?b?????5????(????5(a)), ?K???;?????e??????????,?????5??????,?;?????? ???E?????z?5?o??(????5(b))h0 ??5h?3Cr2W8V???????????5?o???????L?? h?h?h?h?Fig5h?Morphologiesofoxidefilmon wornsurfaceof3Cr2W8Vsteel ?n?????d,3Cr2W8V???;???????C?e,?5?o?? ?C???????????????c?i??3Cr2W8V???e???;???5?? M6C?????o??W6C,?;???T???????????;?C?????? ????W6C?????1???5???????c???????????e,???? ?????hW6C?O???????????p?????B?d??,?V?????? ?;?????????A?,??????,?????????????L?????O???I ???5?o?????A???Z,??????????h0 ???-,???????????????????????????E???5?o?? ???h?R?/???c?????;,???5?o???T?a???Z,???????? ????????h0?%???????n?????????????T???????????? ????????,???O???????b???????R?????????? 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