CAJ | 학술논문

42CrMo钢已成功地用作小功率(2 MW及以下)风电偏航轴承套圈用钢，但由于其有限的淬透性，无法满足大功率风电偏航轴承套圈用钢的要求，因此，研究中引入40CrNiMo钢和硼微合金化42CrMnMoB钢进行对比分析。研究42CrMnMoB钢、40CrNiMo钢和42CrMo钢的淬透性，利用DEFORM3D模拟软件对5 MW风电偏航轴承套圈壁厚1/4位置处的油冷速率进行模拟，并利用模拟热处理炉对三种钢进行模拟热处理，随后对试验钢进行常规力学性能的测试。结果表明，42CrMnMoB钢在端淬距离为85 mm位置处的硬度值为46 HRC，油淬后的理想临界直径约为160 mm，远高于42CrMo钢在85 mm位置处的29 HRC和43 mm的理想临界直径；经DEFORM3D模拟软件模拟的5 MW级风电偏航轴承壁厚1/4位置处的平均油冷速率约为0.7℃//；在模拟油冷并经590℃回火1 h处理后42CrMnMoB钢各项力学性能均能满足5 MW级风电偏航轴承套圈用钢的性能要求，具有应用于大功率风电偏航轴承套圈中的潜能。
42CrMo강이성공지용작소공솔(2 MW급이하)풍전편항축승투권용강，단유우기유한적쉬투성，무법만족대공솔풍전편항축승투권용강적요구，인차，연구중인입40CrNiMo강화붕미합금화42CrMnMoB강진행대비분석。연구42CrMnMoB강、40CrNiMo강화42CrMo강적쉬투성，이용DEFORM3D모의연건대5 MW풍전편항축승투권벽후1/4위치처적유랭속솔진행모의，병이용모의열처리로대삼충강진행모의열처리，수후대시험강진행상규역학성능적측시。결과표명，42CrMnMoB강재단쉬거리위85 mm위치처적경도치위46 HRC，유쉬후적이상림계직경약위160 mm，원고우42CrMo강재85 mm위치처적29 HRC화43 mm적이상림계직경；경DEFORM3D모의연건모의적5 MW급풍전편항축승벽후1/4위치처적평균유랭속솔약위0.7℃//；재모의유랭병경590℃회화1 h처리후42CrMnMoB강각항역학성능균능만족5 MW급풍전편항축승투권용강적성능요구，구유응용우대공솔풍전편항축승투권중적잠능。
The 42CrMo /teel ha/ been /ucce//fully u/ed for /mall-power (2 MW or below) wind turbine yaw bearing ring/, but it could not match the demand of the high-power wind turbine yaw bearing ring/ re/ulting from it/ limited hardenability. The 40CrNiMo /teel and the boron microalloyed 42CrMnMoB /teel are /tudied for compari/on. The hardenability of the 42CrMnMoB /teel, the 40CrNiMo /teel and the 42CrMo /teel are /tudied. The cooling rate at the 1/4 of the wall thickne// of 5 MW wind turbine yaw bearing ring/, in oil quenching proce//, i/ /imulated u/ing DEFORM3D /oftware. A thermal /imulation furnace i/ u/ed for heat treatment proce//, and the mechanical propertie/ have been te/ted. The re/ult/ /how that the hardne// value of the 42CrMnMoB /teel in the end quenching di/tance of 85 mm i/ 46 HRC and the relatively ideal critical diameter after oil quenching i/ about 160 mm, much higher than the ideal critical diameter of 43 mm and 29 HRC at 85 mm po/ition of the 42CrMo /teel. The average cooling rate at the 1/4 of the wall thickne// in oil quenching i/ about 0.7℃// that obtained by /imulation of DFFORM3D /oftware. Mechanical propertie/ of the 42CrMnMoB /teel can match the demand of 5 MW wind yaw bearing ring/ requirement/ for performance after /imulated oil cooling and tempering at 590℃ for 1 hour, indicating that it ha/ the potential to u/ed for the high-power wind turbine yaw bearing ring/.