第５期余桂红等配方预合金化对提高热压富铁基金刚石钻头胎体性能的影响机理结温度对胎体耐磨性和磨损特征的影响规律２断口形貌及能谱分析对相同烧结温度不同ＣＳＢ２加量的抗弯强度测试试样进行断口面的扫描电镜测试分析ＣＳＢ２２６１ＣＳＢ２加

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1 GeologicalScienceandTechnologyInformation Vol.37 No.5 Sep doi: /j.cnki.dzkq [J] (5): ( ; ; 3. ( ) ) : CSB-2 SEM EDS 4 CSB-2 SEM CSB-2 ; (980 ) CSB-2 EDS : ; ; ; ; :P634.4 :A : (2018) Co 8.5mm 8.5mm 15 mm 5 mm 5 Co 35% mm 30mm SM-100A [1-4] Co 100 /min 3min 1 MPa 15 MPa 1 (1) [5-9] MG-2000 (WC 30Ni 15Co 5Fe 24.44Cu 19.9 Sn 2.47Zn 0.62P 2.53 ) SiC 200N 300r/min 10 min 3 CSB-2 (Fe 48.89Cu 39.87Sn 4.94Zn 1.23P 4.57 Re 0.5 ) 6 ( :0% 10% 20% 30% 40% 50%) CSB-2 : : : ( ; ); (2016D ); (KH176271) : (1969 ) @qq. com : (1981 ) duyaof@163.com

第５期余桂红等配方预合金化对提高热压富铁基金刚石钻头胎体性能的影响机理结温度对胎体耐磨性和磨损特征的影响规律２断口形貌及能谱分析对相同烧结温度不同ＣＳＢ２加量的抗弯强度测试试样进行断口面的扫描电镜测试分析ＣＳＢ２２６１ＣＳＢ２加量相同时试样的质量损失随烧结温度的升高先减小后增大其中

2 第５期余桂红等配方预合金化对提高热压富铁基金刚石钻头胎体性能的影响机理结温度对胎体耐磨性和磨损特征的影响规律２断口形貌及能谱分析对相同烧结温度不同ＣＳＢ２加量的抗弯强度测试试样进行断口面的扫描电镜测试分析ＣＳＢ２２６１ＣＳＢ２加量相同时试样的质量损失随烧结温度的升高先减小后增大其中ＣＳＢ２加量为０１０时胎体磨损量最小的烧结温度为９８０ＣＳＢ２含量的变化对胎体材料晶粒尺寸空隙大小和数量加量为２０５０时胎体磨损量最小的烧结温度为９４０分析原因为胎体配方中ＣＳＢ２加量增以及胎体致密性和塑性的影响规律对相同ＣＳＢ２大后在相对较低的烧结温度下即可达到一定的致加量不同烧结温度的抗弯强度测试试样进行扫描密度使胎体的孔隙度减小进而提高胎体的耐磨电镜测试分析烧结温度变化对热压富铁基胎体致性因此即使对于烧结温度为９００的试样当密度和塑性等的影响规律通过在含金刚石的抗弯强度试样上选取金刚石表面进行能谱测试分析ＣＳＢ２加量增大之后其耐磨性也可得到显著提高２２摩擦磨损形貌分析ＣＳＢ２加量对提高胎体力学性能的影响机制以及对减少金刚石热腐蚀的作用原理为进一步分析ＣＳＢ２加量和烧结温度对热压富铁基金刚石钻头胎体摩擦磨损性能的影响规律对摩擦磨损试验后的试样表面进行显微观察分析２摩擦磨损试验结果与分析图２５为不同ＣＳＢ２加量和烧结温度下空白胎体的磨损形貌图６９为不同ＣＳＢ２加量和烧结温２１磨损量及结果分析热压富铁基空白胎体与Ｓｉｃ砂轮进行摩擦磨损度条件下含金刚石体的磨损形貌试验后不同ＣＳＢ２加量和烧结温度对试样质量损失的影响规律如图１所示热压富铁基含金刚石的试样与Ｓｉｃ砂轮进行对磨试验时由于金刚石的作用Ｓｉｃ砂轮磨损很快胎体的磨损量非常小质量损失仅为几毫克由图１可知相同烧结温度条件下胎体磨损量均随ＣＳＢ２加量的增大而减小９００１０２０的４种试验烧结温度条件下胎体配方中含５０ＣＳＢ２加量的试样其质量损失较单质混粉胎体试样分别减少了８８２２８４４９４１５２６３４１说明胎图１胎体磨损量随烧结温度和ＣＳＢ２加量的变化体粉末的预合金化对提高胎体的耐磨性有很大的作用尤其是烧结温度较低时效果更为显著１０１１当１ＥｆｆｅｃｔｓｏｆｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅａｎｄＣＳＢ２ａｄｄｉｔｉｏｎｏｎｔｈｅｗｅａｒｌｏｓｓｏｆｂｉｔｍａｔｒｉｘａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图２烧结温度为９００时不同ＣＳＢ２加量的空白胎体磨损形貌２Ｗｅａｒｍｏｒｐｈｏｌｏｇｉｅｓｏｆｄｉａｍｏｎｄｆｒｅｅｂｉｔｍａｔｒｉｘｗｉｔｈｄｉｆｆｅｒｅｎｔｃｓｂ２ｃｏｎｃｅｎｔｒａｔｉｏｎｓａｎｄｕｎｄｅｒｔｈｅｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅｏｆ９００

２６２地质科技情报２０１８年ａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图３烧结温度为９４０时不同ＣＳＢ２加量的空白胎体磨损形貌３

２ｃｏｎｃｅｎｔｒａｔｉｏｎｓａｎｄｕｎｄｅｒｔｈｅｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅｏｆ９４０ａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图４烧结温度为

２０ｄ３０ｅ４０ｆ５０图５烧结温度为１０２０时不同ＣＳＢ２加量的空白胎体磨损形貌５

3 ２６２地质科技情报２０１８年ａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图３烧结温度为９４０时不同ＣＳＢ２加量的空白胎体磨损形貌３Ｗｅａｒｍｏｒｐｈｏｌｏｇｉｅｓｏｆｄｉａｍｏｎｄｆｒｅｅｂｉｔｍａｔｒｉｘｗｉｔｈｄｉｆｆｅｒｅｎｔｃｓｂ２ｃｏｎｃｅｎｔｒａｔｉｏｎｓａｎｄｕｎｄｅｒｔｈｅｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅｏｆ９４０ａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图４烧结温度为９８０时不同ＣＳＢ２加量的空白胎体磨损形貌４Ｗｅａｒｍｏｒｐｈｏｌｏｇｉｅｓｏｆｄｉａｍｏｎｄｆｒｅｅｂｉｔｍａｔｒｉｘｗｉｔｈｄｉｆｆｅｒｅｎｔｃｓｂ２ｃｏｎｃｅｎｔｒａｔｉｏｎｓａｎｄｕｎｄｅｒｔｈｅｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅｏｆ９８０ａ０ｂ１０ｃ２０ｄ３０ｅ４０ｆ５０图５烧结温度为１０２０时不同ＣＳＢ２加量的空白胎体磨损形貌５Ｗｅａｒｍｏｒｐｈｏｌｏｇｉｅｓｏｆｄｉａｍｏｎｄｆｒｅｅｂｉｔｍａｔｒｉｘｗｉｔｈｄｉｆｆｅｒｅｎｔｃｓｂ２ｃｏｎｃｅｎｔｒａｔｉｏｎｓａｎｄｕｎｄｅｒｔｈｅｓｉｎｔｅｒｉｎｇｔｅｍｐｅｒａｔｕｒｅｏｆ１０２０

5 : 263 2~5 CSB-2 6~9 CSB-2 SiC 2~5 CSB-2 CSB-2 CSB-2 CSB-2 1020 980 980 Fig.6 6 a.0%;b.10%;c.

4 5 : 263 2~5 CSB-2 6~9 CSB-2 SiC 2~5 CSB-2 CSB-2 CSB-2 CSB Fig.6 6 a.0%;b.10%;c.20%;d.30%;e.40%;f.50% 900 CSB-2 Wearmorphologiesofdiamond-embeddedmatrixwithdiferentCSB-2concentrationsandunderthesinteringtemperatureof900 Fig.7 7 a.0%;b.10%;c.20%;d.30%;e.40%;f.50% 940 CSB-2 Wearmorphologiesofdiamond-embeddedmatrixwithdiferentCSB-2concentrationsandunderthesinteringtemperatureof940

264 2018 Fig.8 8 a.0%;b.10%;c.20%;d.30%;e.40%;f.

Wearmorphologiesofdiamond-embeddedmatrixwithdiferentCSB-2concentrationsandunderthesinteringtemperatureof980 Fig.

5 Fig.8 8 a.0%;b.10%;c.20%;d.30%;e.40%;f.50% 980 CSB-2 Wearmorphologiesofdiamond-embeddedmatrixwithdiferentCSB-2concentrationsandunderthesinteringtemperatureof980 Fig.9 9 a.0%;b.10%;c.20%;d.30%;e.40%;f.50% 1020 CSB-2 Wearmorphologiesofdiamond-embeddedmatrixwithdiferentCSB-2concentrationsandunderthesinteringtemperatureof CSB-2 50% (1) CSB-2 0%30%50% (2) CSB-2 0% 50% SEM 10 SEM CSB (900~980 ) CSB-2 0% ; 4 CSB-2 50% 0%

5 : 265 11 12 CSB-2 0% 980 CSB-2 50% CSB-2 50% 4 900-940 980 ; 10 a.0%;b.30%;c.50% SEM Fig.

temperatures 12 a.900 ;b.940 ;c.980 ;d.1020 CSB-2 50% SEM Fig.

6 5 : CSB-2 0% 980 CSB-2 50% CSB-2 50% ; 10 a.0%;b.30%;c.50% SEM Fig.10 Fracturemorphologiesofdiamond-freehot-pressedironrichbasedbitmatrix 11 a.900 ;b.940 ;c.980 ;d.1020 CSB-2 0% SEM Fig.11 Fracturemorphologiesofdiamond-freebitmatrixwithCSB-2concentrationof0% andunderdiferentsintering temperatures 12 a.900 ;b.940 ;c.980 ;d.1020 CSB-2 50% SEM Fig.12 Fracturemorphologiesofdiamond-freebitmatrixwithCSB-2concentrationof50% andunderdiferentsintering temperatures (3) CSB-2 0%30%50% 13-d~f CSB-2 0% 980 SEM 30% 13 50% 13-a~c CSB-2 0%30% 50% 13 3 CSB- CSB-2 0% CBS % CSB-2 50% CSB-2 0% 30% 50% CSB-2 0% CSB-2 30%

266 2018 13 a.0%;b.30%;c.50%;d.0%;e.30%;f.50% 980 CSB-2 SEM ringtemperatureof980 Fig.

30% W Cu Fe; [12-15] Fe CBS-2 C Ni P W Cu C 28.

7 a.0%;b.30%;c.50%;d.0%;e.30%;f.50% 980 CSB-2 SEM ringtemperatureof980 Fig.13 Fracturemorphologiesofdiamond-embeddedbitmatrixwithdiferentCSB-2concentrationsandunderthesinte- CSB- 2 50% 15 CSB-2 30% W Cu Fe; [12-15] Fe CBS-2 C Ni P W Cu C 28.45% 980 Fe 4 EDS CSB-2 16 CSB-2 50% CSB-2 0% Fe Cu Ni Co P 30%50% 980 CSB-2 30% Ni Co P Fe Cu 14~16 CBS-2 30% 14 SEM 50% CSB-2 0% 14 CSB-2 0% Fig.14 EnergydispersivespectrumtestsondiamondsurfaceandbitmatrixundertheCSB-2concentrationof0%

5 : 267 15 CSB-2 30% Fig.15 EnergydispersivespectrumtestsondiamondsurfaceanddiamonddesquamatingpitsurfaceundertheCSB-2concentrationof30% 16 CSB-2 50% Fig.

$Mechanicalproper- tiesandwearresistanceoffunctionalygraded WC-Co[J].Int. JournalofRefractory Metalsand Hard Materials201336: 46-51. [4]. [J]. 201736(5):. [M]. :. [J]. 2005(10):52-54.$

8 5 : CSB-2 30% Fig.15 EnergydispersivespectrumtestsondiamondsurfaceanddiamonddesquamatingpitsurfaceundertheCSB-2concentrationof30% 16 CSB-2 50% Fig.16 EnergydispersivespectrumtestsondiamondsurfaceandbitmatrixundertheCSB-2concentrationof50% 5 (1) CSB ; [5] CSB [6] (2)SEM CSB-2 - ; (3)EDS (4) CSB-2 CSB-2 - : [1] HsiehYZLinST.Diamondtoolbitswithironaloysasthe bindingmatrices[j].materialschemistry & Physics (2): [2]. [J] (2): (2): [3] WangXHwangKSKoopman Metal.Mechanicalproper- tiesandwearresistanceoffunctionalygraded WC-Co[J].Int. JournalofRefractory Metalsand Hard Materials201336: [4]. [J] (5):. [M]. :. [J]. 2005(10): [7] DelVilarMMuroP MSánchezJMetal.Consolidationof diamondtoolsusingcu-co-febasedaloysasmetalicbinders [J].PowderMetalurgy201344(1): [8] ZaitsevA ASidorenkoD ALevashovE Aetal.Develop- mentand application ofthe Cu-Ni-Fe-Sn-based dispersion- hardenedbondforcutingtoolsofsuperhard materials[j]. JournalofSuperhard Materials201234(4): [9] WangLGuoSGaoJetal.Microwavesinteringbehaviorof FeCuCobasedmetalicpowderfordiamondaloytoolbit[J]. JournalofAloy & Compounds : [10]BarbosaAdePBobrovnitchiGSSkuryA LDetal.Struc- turemicrostructureand mechanicalpropertiesofpm Fe-Cu- Cualoys[J].MaterialsandDesign201031: [11]Borowiecka-JamrozekJLachowskiJ.Modelingofretention ofadiamondparticleinmatricesbasedonfe-cu[j].procedia Engineering : [12]. [J] (5): [13].Fe [J]. [14] KonstantyJSTyralaD.Wearmechanism ofiron-basedia- mond-impregnatedtoolcomposites[j].wear :

9 [15]DhokeyN BUtpatKGosaviAetal.Hot-presssintering temperatureresponseofdiamondcutingtoolsanditscorrela- tionwithwearmechanism[j].int.journalofrefractory Met- alsandhard Materials201336: EffectMechanismofFormulaPre-aloyingonImproving Hot-PressedDiamondBitIron-Rich MatrixPerformance YuGuihong 1 JiaoXingdong 1 LiJingyi 23 Chen Hui 1 TanSongcheng 3 FangXiaohong 3 (1.No.3GeologicalExplorationInstituteHenanProvincialBureauof Geo-explorationand MineralDevelopmentZhengzhou450000China; 2.GuilinDiamondIndustryCo.LtdGuilinGuangxi541199China; 3.FacultyofEngineeringChinaUniversityofGeosciences(Wuhan)Wuhan430074China) Abstract:Pre-aloyingofimpregnateddiamondbit matrixformulaisanew researchinterestinrecent years.accordingtothesamehot-pressediron-richdiamondbitmatrixformuladiferentspecimenswere manufacturedbychangingtheconcentrationsofcsb-2 pre-aloyed powderandsinteringtemperature. BasedonthisthefrictionalweartestScanningElectron Microscope(SEM)analysisandEnergyDisper- sivespectrum (EDS)measurementwereconductedinthisstudy.Theresultsoffrictionalweartestshow thattheabrasionlossofbitmatrixdecreaseswiththeincreaseofthecsb-2inthefoursinteringtempera- turesandtheabrasionlossofbitmatrixincreasesfirstlyandthendecreaseswiththeincreaseofthesinte- ringtemperatureunderthesamecsb-2addition.thesem analysisshowsthattheadditionofcsb-2can refinethetextureofbitmatrixandreducethenumberofmicroporesinbitmatrix.duringhightempera- turesinteringtheironbasedbitmatrixhasahotcorrosionefectondiamondgritandthethermalcorro- siondegreeofdiamondisgradualysloweddown withtheincreaseofthecsb-2concentrationinthebit matrixformula.theedsmeasurementshowsthatthepreparationofthebitmatrixcanincreasethewet- tabilityofthematrixmetaltodiamondsurfacethusincreasingtheretentionstrengthofthebitmatrixto diamondgrit. Keywords:pre-aloyedpowder;sinteringtemperature;frictionalwear;topographicanalysis;energyspec- trumtest

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