CN1005158B - 非晶态合金粉末 - Google Patents
非晶态合金粉末 Download PDFInfo
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- CN1005158B CN1005158B CN87106098.1A CN87106098A CN1005158B CN 1005158 B CN1005158 B CN 1005158B CN 87106098 A CN87106098 A CN 87106098A CN 1005158 B CN1005158 B CN 1005158B
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- 239000000843 powder Substances 0.000 title claims abstract description 31
- 229910000808 amorphous metal alloy Inorganic materials 0.000 title abstract description 22
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000004615 ingredient Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000002425 crystallisation Methods 0.000 abstract description 6
- 230000008025 crystallization Effects 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 229910052752 metalloid Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005300 metallic glass Substances 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Soft Magnetic Materials (AREA)
Abstract
本发明属于非晶态合金领域,主要是适用于制造非晶态合金粉末。本发明合金粉末的具体化学成分为(重量%)C0.7-1%;B2-4%;Si3-5%;Mo1-3%;Ni3-5%;Cr4.5-5.5%;W8-11%;0≤0.1;其余为铁。由于上述合金粉末具有临界冷却速率低(103℃/秒),所以采用一般快速冷却方法,即可得到非晶态合金粉末。这种非晶合金粉末具有晶化温度高(585℃),粉末易于固化成材,粉末颗粒均匀,硬度高,耐磨损,耐腐蚀,制备简便等特点。
Description
本发明属于非晶态合金领域。其主要适用于制造非晶态合金粉末。
现在在热喷涂等领域所使用的合金粉末,其结构多为晶态合金粉末,其缺点有抗蚀性能较差,被喷涂部件表面硬度和耐磨性均较低。
目前由于非晶态合金粉末的出现,使热喷涂部件的使用寿命又有不同程度的提高,使被喷涂的部位具有较高抗蚀性耐磨性和较硬的硬度。非晶态合金粉末被喷涂在部件表面能够得到密度均匀的,包复很好的高硬度非晶态涂层。但就做为热喷涂用料,非晶态合金粉末的临界转变晶态温度较低,一般在350~500℃以下就转变成很脆的晶体,因此非晶态合金是不能在较高的温度下应用,其原因是在热态使用时、非晶态合金会很快地转变成晶体,失去了非晶态应有的特性。
本发明的目的是提供一种具有非晶球形组织的粉末和热稳定性好的,耐腐蚀、抗磨损和具有软磁特性的,形成非晶时临界冷却速度为103℃/秒的合金粉末的化学成分。
本发明非晶态合金粉末的具体化学成分为(重量百分比)C0.7-1.0%,B2-4%,Si3-5%,Mo1-3%,Ni3-5%,Cr4.5-5.5%,W9-11%,0≤0.15%其余为Fe。
本发明合金成分主要是从各类元素在合金中所起的作用,和非晶态的形成及稳定性而设计的。在本发明的合金中,在金属一类金属(M-S)型的合金M100-xSx中,最易形成非晶态并具有高稳定度的成分,是x=20的附近。因此本发明非晶合金粉末的成分配比把过渡族金属Fe、Cr、Ni、W、Mo的原子百分数设计占合金总量的80%左右。类金属元素B、Si、C的原子百分数占合金总量的20%左右。按上述成分设计,正好是原子排列在空隙处被填充最充分时的最佳值。由相图中也可知道,这些类金属元素同合金中主要过渡族金属的比例分别都处在共晶成分附近,由于类金属元素的增多,这就使得合金的凝固点Tm降低,它和非晶化温度Tg点之间的差距△Tg缩小,由于最大的结晶速率将发生于Tm和Tg之间,那么△Tg的减小,则使金属非晶态的形成更为容易,这也是本发明合金粉末形成非晶态所需临界冷却速率较低的(103℃/秒)原因之一。在本发明合金的组元中,Fe是为基体元素,在晶体结构上和Cr、Mo、W相同,它们之间有着相当高的溶解度,同时又增大了钢液的粘度,而W、Mo原子半径又较大,则会增大通过原子重新排列而析出结晶的难度,从而提高了非晶态合金粉末的热稳定性,提高了非晶态合金粉末的抗磨损性。金属元素Fe、Ni和类金属元素Si、B的加入,使非晶态合金粉末具有很好的磁特性。其磁感应强度Bs=8000~11000高斯;矫顽力Hc=0.17~1.0奥斯特。由于采用了上述非晶合金成分的配比,使得该种材料具有很好的热稳定性和抗磨损、抗腐蚀性以及较好的磁特性。该种材料的晶化温度为585℃。附图1给出的曲线是采用差热分析法所绘出的M80S20时的非晶合金粉末DTA曲线,晶化激活能为118千卡/克分子。
本发明非晶态合金粉末的制备,是采用中频或高频感应炉进行冶炼,冶炼时当钢液全部溶化后,再采用快速冷却法,使钢液以粉末状,再以103℃/秒的冷却速度将合金熔液制备成非晶态合金粉末。粉末粒度可以从几微米到几百微米。粉末呈球形状,而且粉末的流动性很好。
附图2是本发明合金采用上述制备方法得到的非晶合金粉末的X光衍射谱,由衍射谱可看出,在所得到的非晶物质衍射谱上,没有出现明显的德拜线,而是漫宽的散射曲线。
采用本发明非晶合金粉末与现有技术相比较具有以下特点:
①采用本发明非晶合金粉末与其它非晶合金粉末相比较,具有非晶粉末制备时所需临界冷却速度低,为103℃/秒,而晶化温度又较高,为585℃,晶化激活能较大,因此比其它非晶合金粉末易于固化成材,又能保持非晶状态。
②本发明非晶合金粉末与其它合金粉末相比较具有粉末颗粒成分均匀,粉末硬度高,显微硬度值HV=800-1100kg/mm2,耐磨损,耐腐蚀。
③本发明非晶合金粉末与其它非晶粉末相比较具有制备简便,经济等特点。
实施例
采用本发明非晶态合金粉末成分范围,配制了几种合金,其化学成分见表1。
将上述合金成分采用高频感应电炉中进行冶炼,再将合金熔液于快速冷却装置中,以103℃/秒冷却速度,将合金熔液制备成非晶态合金粉末。其性能检验见表2。
Claims (1)
1、一种制备非晶态粉末的合金,其特征在于合金的化学成分(重量%)为:C0.7-1.0%,B2-4%,Si3-5%,Mo1-3%,Ni3-5%,Cr4.5-5.5%,W9-11%,0≤0.15%其余为铁。
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CN87106098.1A CN1005158B (zh) | 1987-09-05 | 1987-09-05 | 非晶态合金粉末 |
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CN87106098.1A CN1005158B (zh) | 1987-09-05 | 1987-09-05 | 非晶态合金粉末 |
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CN1031865A CN1031865A (zh) | 1989-03-22 |
CN1005158B true CN1005158B (zh) | 1989-09-13 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1308096C (zh) * | 2004-04-12 | 2007-04-04 | 北京有色金属研究总院 | 一种块体非晶合金坯件的加工方法及其所使用的设备 |
CN100554484C (zh) * | 2007-04-12 | 2009-10-28 | 北京科技大学 | Fe基非晶纳米晶喷涂粉末及其氩气雾化制备方法 |
CN101054667B (zh) * | 2007-05-17 | 2010-07-07 | 贵州光谷海泰激光技术有限公司 | 激光修复高硬度发动机制件报废模具的材料和制法及应用 |
CN102791902B (zh) * | 2010-02-01 | 2015-04-08 | 科卢斯博知识产权有限公司 | 镍基热喷涂粉末和涂层及其制备方法 |
CN102982956B (zh) * | 2012-11-08 | 2015-03-18 | 建德市易通金属粉材有限公司 | 高导磁率低损耗金属软磁材料用粉末及其制备方法 |
CN109719264B (zh) * | 2019-02-26 | 2020-10-02 | 安徽智磁新材料科技有限公司 | 一种防锈非晶合金及其制备方法 |
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1987
- 1987-09-05 CN CN87106098.1A patent/CN1005158B/zh not_active Expired
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