I mea e ʻimi ai i ka hopena o nā ʻāpana WC ma ka microstructure a me nā waiwai o uhi uhi, FeCoCrNiMn-xWC entropy kiʻekiʻe nā mea hoʻopaʻa paʻa ua hoʻomākaukau ʻia ma ka ʻili o ke kila NM450 me ka mana laser o 1 200 W a me ka wikiwiki scanning o 6 mm / s. Ua aʻo ʻia ka pae, microstructure, mechanical properties a me ka pale ʻana o nā pale e ka X-ray diffractometer (XRD), scanning electron microscope (SEM), Vickers microhardness tester a me friction and wear tester. Hōʻike nā hopena i ka wā e hoʻohui ʻia ai nā ʻāpana WC i ka FeCoCrNiMn kiʻekiʻe entropy alloy coating, ʻo ka microstructure o ka mea hoʻonaninani entropy alloy composite ka nui o ka FCC a me ka BCC, aia kahi liʻiliʻi o nā WC, W2C a me Cr7C3, a ʻo ka microstructure he columnar. ʻano ʻano aniani a me ke kelepona. ʻO ka hoʻopili hoʻohuihui me 10% WC ka hana piha maikaʻi loa, me ka microhardness hiki i ka waiwai kiʻekiʻe o 484.5 HV0.3; he 0.58 ka huina hooku'i, a o ka poho a me ke komo ana o ka ha'aha'a loa ma 0.011 4 g a me 0.857×10-5 g/(N·m), pakahi. ʻO ke ʻano o ka ʻaʻahu ʻana o ka ʻaʻahu hoʻohuihui ʻo ia ka lole abrasive a me ka lole oxidative, i hui pū ʻia me ka lole adhesive.

Ua lilo nā ʻāpana entropy kiʻekiʻe i mea noiʻi noiʻi o nā mea hou ma muli o ko lākou mau pono o ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ke kūpaʻa ʻaʻahu, ka pale ʻana i ka corrosion a me ke kūpaʻa wela kiʻekiʻe. ʻO kahi hiʻohiʻona kaulana o nā alloys entropy kiʻekiʻe ka ʻokoʻa o kā lākou mau mea. ʻAʻole like me nā ʻāpana kuʻuna, ka mea maʻamau he hoʻokahi wale nō a ʻelua mau mea metala nui, ʻoi aku ka nui o nā mea hoʻohui entropy kiʻekiʻe, a ʻo ka ʻāpana atomic o kēlā me kēia mea ma kahi kiʻekiʻe, maʻamau 5% ~ 35%. ʻOiai ua loaʻa i nā mea hao entropy kiʻekiʻe nā mea metala he nui, hiki iā lākou ke hana i kahi pae hoʻonā paʻa maʻalahi a ʻoi aku ka maikaʻi o ka hana ma mua o nā alloys kuʻuna. He nui nā waiwai maikaʻi loa o nā alloys entropy kiʻekiʻe, e like me ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ke kūpaʻa maikaʻi ʻana i ka lole, ke kūpaʻa wela kiʻekiʻe, a me ke kūpaʻa maikaʻi a me ka pale ʻana. ʻO kēia mau hiʻohiʻona e hana i nā alloys entropy kiʻekiʻe i nā manaʻo noi ākea i ka aerospace, kaʻa, petrochemical, mana uila, biomedicine a me nā kula ʻē aʻe. Ma o ka laser cladding, ua hoʻomākaukau ʻia nā mea hoʻonaninani entropy kiʻekiʻe i hoʻopaʻa ʻia i ka substrate, a ua hui pū ʻia nā mea maikaʻi o nā mea ʻelua e hāpai i ka hoʻohana hou ʻana o nā mea hoʻohui entropy kiʻekiʻe i ka hana ʻoihana. No ka laʻana, ma ke kahua o ka aerospace, hiki ke hoʻohana ʻia nā ʻāpana entropy kiʻekiʻe e hana i nā ʻāpana wela kiʻekiʻe a me nā ʻāpana corrosion; ma ke kahua o ka petrochemicals, hiki ke hoohana ia lakou no ka hana ana i na paipu a me na lako hana. ma ke kahua o ka mīkini hana lanahu, hiki ke hoʻohana ʻia no ka hana ʻana i nā ʻāpana me nā pale lole pale ikaika.

Hiki i ka ʻenehana laser cladding ke hoʻokō i ka hoʻomehana wikiwiki a me ka hoʻoheheʻe ʻana, e hōʻemi ana i ka pau ʻana o nā mea maka a me ka maʻalahi o ke kahe kaʻina; Loaʻa i ka ʻenehana laser cladding nā hiʻohiʻona o ka hoʻomaloʻo wikiwiki ʻana, e hoʻomaʻamaʻa maikaʻi ana i ka hoʻomākaukau ʻana o ka palaoa uhi i hoʻomākaukau ʻia, e kōkua ana i ka hoʻomaikaʻi ʻana i ka nui a me ka hana o ka uhi ʻana, e like me ka paʻakikī, ke kūpaʻa ʻana, ke kūpaʻa corrosion, etc.; i ka wā o ka hoʻopaʻa ʻana i ka laser, ua hoʻokumu ʻia kahi paʻa metallurgical ma waena o ka uhi a me ka substrate, kahi e hoʻomaikaʻi nui ai i ka ikaika hoʻopaʻa ʻana ma waena o ka uhi a me ka substrate, e kōkua i ka hoʻonui ʻana i ke ola lawelawe o ka uhi a hōʻemi i ke ʻano o ka hoʻoheheʻe ʻana a me ka haki ʻana; Hiki i ka ʻenehana laser cladding ke hoʻoponopono a hoʻololi i ka ʻili o nā ʻāpana hemahema, e kōkua ana i ka hōʻemi ʻana i nā kumu waiwai a me ka haumia o ke kaiapuni a hoʻokō i ka hoʻomohala hoʻomau.

I kēia mau makahiki i hala iho nei, ua lilo ka hoʻoikaika ʻana i ka uhi ʻana o nā ʻāpana entropy kiʻekiʻe ma o ka hoʻohui ʻana i nā ʻāpana paʻakikī i kumuhana wela o ka noiʻi. ʻO nā ʻāpana paʻakikī maʻamau ka WC, TiC a me SiC. Ma waena o lākou, loaʻa iā WC nā pono o ka paʻakikī kiʻekiʻe, ka paʻa wela maikaʻi a me ka pulu maikaʻi me nā metala. Hiki i nā ʻāpana WC ke hoʻoikaika maikaʻi i ka ikaika, ka paʻakikī a me ke kūpaʻa ʻana o nā mea hoʻonaninani entropy alloy kiʻekiʻe. Ma kēia pepa, hoʻohana ʻia ka ʻenehana pale laser e aʻo i ka FeCoCrNiMn high entropy alloy. Ke aʻo ʻia nei ka mana o ka hoʻohui ʻana i nā mea like ʻole o ka WC ma ka haku mele, microstructure, microhardness a me ka pale ʻana o ka uhi ʻana o ka entropy alloy kiʻekiʻe. Ma ka hoʻololi ʻana i ka nui o ka WC i hoʻohui ʻia, ua hoʻomākaukau ʻia kahi FeCoCrNiMn-xWC kiʻekiʻe entropy alloy composite coating me ka hana maikaʻi, a ua hoʻohana ʻia i ka hoʻomākaukau ʻana i ka uhi ʻana i ka ʻaʻahu ma luna o ka ʻili o ka lua waena o ka mea hoʻoheheʻe koʻu koʻikoʻi.

1 Nā mea hoʻokolohua a me nā ʻano hana
(1) ʻO ka mea hoʻāʻo ʻo NM450 ke kila. No ka hōʻoia ʻana i ka ʻole o ka haumia o ka ʻili, ua hoʻomaʻamaʻa mua ʻia ka ʻili o ka hāpana me ka sandpaper, a laila holoi ʻia me ka ultrasonically, a maloʻo loa ma mua o ka hoʻāʻo ʻana.
(2) Mea pauda Ua koho ʻia ka hoʻāʻo ʻo FeCoCrNiMn kiʻekiʻe entropy alloy pauka ma ke ʻano he mea pani pani. Hōʻike ʻia ka hui kemika ma ka Papa 1. ʻO ka nui o ka pauka he 45 ~ 105 μm. Ua koho ʻia nā seramika WC ma ke ʻano he mea hoʻoikaika. I ka hoʻāʻo ʻana, ua hoʻohana ʻia kahi mea hānai pauka lua-kanal e hoʻoponopono i ka nui o nā seramika WC i ka manawa maoli e hōʻoia i ka holomua o ka hoʻāʻo. FeCoCrNiMn-xWC alloys me WC mass fractions o 0, 5%, 10%, 15% a me 20% ua hoʻolālā ʻia e like me nā pauka i koho ʻia. Hōʻike ʻia ka haku mele ma ka Papa 2.
(3) Ka hoʻomākaukau ʻana i ka uhi ʻana Ka pale laser ʻO nā palena kaʻina hana i hoʻohana ʻia i ka hoʻokolohua: laser mana o 1 200 W, defocus o 15 mm, scanning wikiwiki o 6 mm / s, 99.99% argon pale i ka wā o ka cladding kaʻina, a me ka argon kahe ana o 15 L / min. Hoʻolālā ʻia ka hoʻokolohua e loaʻa i 5 mau pūʻulu o nā laʻana, a ua hoʻāʻo ʻia nā pūʻulu 5 o nā laʻana. ʻO ka mānoanoa o ka uhi o kēlā me kēia hui o nā laʻana he 1 mm.
(4) Hōʻike ʻana i ka uhi ʻana Ma hope o ka pau ʻana o ka hoʻopaʻa ʻana, ʻoki ʻia ka hāpana hoʻāʻo e kū pono ana i ka ʻaoʻao pale me ka ʻoki uea. Ma hope o ka ʻoki ʻana, hoʻomaʻemaʻe ʻia ka ʻili o ka hāpana e wehe i nā ʻaila ʻaila i waiho ʻia i ka wā o ka ʻoki ʻana, a ua hoʻomaʻemaʻe ʻia nā mea haumia o ka ʻili i ka mīkini kani ultrasonic e hoʻomaʻemaʻe loa i ka hāpana a hoʻopau i nā hoʻokolohua ma hope. ʻIke ʻia ka morphology macroscopic o ka uhi me ka microscope stereo RY-7045. Ua ʻino ʻia ka hāpana me ka aqua regia (ʻo ka ratio molar o HCl a i HNO3 he 3:1) no 10-20 s. Ua ʻike ʻia ka microstructure o ka uhi me ka JSM-5610LM scanning electron microscope (SEM). Ua kālailai ʻia ka ʻāpana uhi me ka D/max2500 X-ray diffractometer (XRD). ʻO 20°-100° ka huina scanning, ʻo 0.05° ka ʻanuʻu scanning, a ʻo 4°/min ka wikiwiki o ka nānā ʻana. Ua hoʻāʻo ʻia ka paʻakikī o ka hāpana me ka PCHVT-1000Z ʻike maka microscopic Vickers hardness tester. ʻO 300 g ka hoʻouka ʻana a ʻo ka manawa paʻa he 10 s.

Ua ana ʻia nā hiʻohiʻona friction a me ka ʻaʻahu o ka uhi me ka hoʻohana ʻana i ka friction GHT-1000EM a me ka hōʻike ʻaʻahu. ʻO ka ʻāʻī a me nā mea hoʻohana i hoʻoheheʻe ʻia ma mua a poni ʻia a ʻaʻole ʻike ʻia nā ʻōpala. Ua kinai ʻia nā mea pālua friction a ua hoʻomāmā ʻia ke kila GCr15. Ua hoʻopaʻa ʻia ka ukana ma 300 g, ʻo ka manawa hoʻāʻo ʻo 1 800 s, ʻo ka wikiwiki o ka kaʻa he 450 r / min, ʻo ke anawaena friction he φ6 mm, a ʻo ke alapine moto he 17.8 Hz. Ma hope o ka hoʻāʻo ʻana, ʻike ʻia ka morphology ʻekolu-dimensional o nā hōʻailona ʻaʻahu ma ka ʻili o ka specimen me ka microscope stereo.
Hōʻike ʻia ka uhi ʻana e ka ratio o ka nui o ka lole i ka hana i hana ʻia e ka ukana, ω = M/FS (1)
Ma kahi o M ka huina hoohana, g; F ka haawe hoao, N; ʻO S ka lōʻihi o ke kuʻi, S = 169 646 mm.

2 Nā hopena hoʻokolohua a me ka nānā ʻana
(1) Macromorphology o ka uhi uhi
Hōʻike ʻia ka macromorphology o ka ʻili o ka uhi ʻana ma ke Kiʻi 1. Ua hoʻokumu maikaʻi ʻia ka morphology o ka ʻili o ka ʻili a palahalaha ka ʻili. ʻAʻole ʻike ʻia nā hemahema e like me nā māwae a me nā lua. Me ka hoʻonui ʻana o ka ʻike WC, hiki mai ka pauka a me ka agglomeration ma ka ʻili. Hōʻike ka hōʻike ʻana me ka piʻi ʻana o ka maʻiʻo WC, e emi ana ka wai o ka pauka a e emi ana ka mahana o ka ʻili. ʻO kekahi hapa ma muli o ka paʻi ʻana o ka wai hoʻoheheʻe.
(2) Ka nānā 'ana i ka pae o ka uhi 'ana
Hōʻike ʻia ke kikoʻī XRD o ka uhi paʻa ʻana ma ka Figure 2. E like me ka hōʻike ʻana ma ka Figure 2, ʻo ka FeCoCrNiMn-xWC composite coating ka mea nui o ka FCC phase a me BCC phase structure. Hiki ke ʻike maopopo ʻia me ka piʻi ʻana o ka hoʻohui WC, piʻi ka piʻi o ka diffraction peak o ka māhele FCC a me ka emi ʻana o ka piko diffraction o ka māhele BCC. Ke hiki aku ka hoʻohui WC i 10%WC, ʻaneʻane nalo loa ka piko o ka diffraction o ka māhele BCC. Hiki i nā ʻāpana WC ke hoʻoheheʻe ʻia mai ka matrix uhi e like me ka precipitates. ʻO kēia mau ʻāpana WC i hoʻoheheʻe ʻia e hana i nā hana hoʻoikaika hou i ka uhi ʻana, e hoʻomaikaʻi i ka paʻakikī a me ke kūpaʻa ʻana o ka uhi. ʻO ka hoʻoikaika ʻana i ka ua e hoʻololi i ka haku mele ʻana a me ka hāʻawi ʻana i ke ʻano o ka pae uhi, a laila pili i ka hana holoʻokoʻa o ka uhi. ʻO ka hoʻonui ʻana i ka WC e hoʻololi i ka microstructure a me ka hoʻonohonoho ʻana o ka ʻāpana wela, no ka mea, ʻo ka helu heheʻe kiʻekiʻe a me ka paʻa wela o ka WC e hoʻopilikia i ka hoʻokumu ʻana a me ka ulu ʻana o ka wahi i hoʻopilikia ʻia. ʻO kēia hoʻololi ʻana i ka ʻāpana wela e hoʻopilikia hou i ka hoʻokumu ʻana a me ka hana ʻana o ke ʻano o ka pae hoʻopili. ʻO ka lua, e hoʻoheheʻe nā ʻāpana WC i ka lattice o ka matrix coating e hana i kahi hopena paʻa, a laila e hoʻomaikaʻi ai i ka paʻakikī a me ka ikaika o ka matrix.
(3) Ke kālailai microstructure o ka uhi uhi
Hōʻike ʻia ka microstructure o ka uhi ʻana ma ka Figure 3. E like me ka mea i hōʻike ʻia ma ka Figure 3 (a), ke hoʻohui ʻole ʻia nā ʻāpana WC, ʻo ka uhi ʻana he mau kristal equiaxed nui, nā lōʻihi o nā kristal ma nā ʻaoʻao āpau ua like like, a me ka spacing. liʻiliʻi ma waena o nā kristal; e like me ka mea i hoikeia ma na Kii 3 (b) a me 3 (c), ke hookomoia ka 5% WC a me 10% WC, e hoomaka ana e puka mai kekahi huina liilii o ka WC i hoohehee ole ia iloko o na keokeo. Ke ʻoi aku ka maikaʻi o nā kristal equiaxed, hoʻololi lākou i nā dendrites columnar, a ʻoi aku ka maikaʻi o ka microstructure grains. Ma hope o ka hoʻohui ʻana i ka 10% WC, hoʻomaʻemaʻe nui ʻia ka uhi ʻana; e like me ka mea i hoikeia ma na Kii 3 (d) a me 3 (e), ke hoohuiia ka 15% WC a me 20% WC, e emi iho ana na kristal columnar o ka uhi hoohuihui, a o ka microstructure ka hapanui o na kristal cellular. Hōʻike kēia i ka hoʻonui ʻana i ka nui o nā ʻāpana WC e kūpono i ka hoʻomaʻemaʻe ʻana i ke ʻano huila, a ʻo ka pilina ma waena o nā ʻāpana WC a me ka matrix e hoʻoikaika pū i ka hoʻoikaika ʻana i ka palaoa.
(4) Ka nānā 'ana i ka pa'akikī o ka ho'opili 'ana Ua hō'ike 'ia ka microhardness cross-sectional o ka uhi 'ana ma ke Ki'i 4. Ua ho'omaika'i maika'i 'ia ka pa'akikī o ka FeCoCrNiMn-xWC composite ma hope o ka ho'ohui 'ana i nā mea WC. Ke hoʻohui ʻole ʻia nā ʻāpana WC, ʻo ka awelika microhardness o ka uhi ʻana he 393.8 HV0.3; i ka 5%, 10%, 15%, a me 20% o ka WC, he 431.9 HV0.3, 484.5 HV0.3, 450.6 HV0.3, a me 430.1 HV0.3 ka awelika microhardness o ka uhi hui. ʻO kēia no ka mea hiki i ka paʻakikī kiʻekiʻe o WC ponoʻī ke hoʻomaikaʻi maikaʻi i ka paʻakikī o ka uhi ʻana o ka entropy alloy composite kiʻekiʻe. ʻO ka lua, i ka wā o ka hoʻopaʻa ʻana, e hoʻopuka kekahi mau mea WC i nā mea C ma muli o ke kiʻekiʻe o ka wela wela, a me nā carbide (Fe3C, Cr7C3, W2C) i hana ʻia e nā mea C a me Fe, Cr, W a me nā mea ʻē aʻe e hoʻoikaika i ka hoʻomaikaʻi ʻana i ka microhardness o ka microhardness. ka uhi ʻana.
(5) Tribological analysis of cladding coating Ua hōʻike ʻia ka ʻāpana friction coefficient-time curve ma ke Kiʻi 5. Inā ʻaʻole i hoʻohui ʻia ka WC i ka uhi ʻana, ʻo ka awelika friction coefficient o ka hoʻopili composite he 0.69; i ka wā e hoʻohui ʻia ai nā ʻāpana WC me kahi hakina nui o 5%, ʻo 0.72 ka helu hoʻoheheʻe o ka hoʻopili hui; ke hoʻohui ʻia nā ʻāpana WC me kahi hakina nui o 10%, ʻo ka awelika friction coefficient o ka uhi hoʻohuihui ka mea liʻiliʻi loa, ʻo ia ka 0.58; i ka hoʻohui ʻia ʻana o nā ʻāpana WC me kahi hakina nui o 15%, ʻo 0.86 ka ʻawelike friction coefficient o ka hoʻopili ʻia; ke hoʻohui ʻia nā ʻāpana WC me kahi hakina nui o 20%, ʻo 0.59 ka ʻawelike friction coefficient o ka uhi ʻana.

Ke hoʻohui ʻia ka WC i ka uhi, hiki ke hoʻonui nui i ka paʻakikī o ka uhi. Ke hoʻokomo ʻia i ka ʻaʻahu o waho, hiki i ka uhi paʻakikī kiʻekiʻe ke pale aku i ka ʻoki ʻana a me ka ʻokiʻoki ʻana i nā ʻāpana lole, a laila e hoʻomaikaʻi ai i ka pale ʻana. Hiki i ka hoʻohui ʻana i ka WC ke hoʻomaʻemaʻe i ka nui o ka palaoa o ka uhi, a laila e hoʻomaikaʻi ai i ka ikaika a me ka paʻakikī o ka uhi. Hiki i nā kīʻaha hoʻomaʻemaʻe ke hoʻonui i ke kū'ē i ka dislocation sliding a hoʻomaikaʻi i ka pale ʻana o ka uhi. Me ka hoʻonui ʻana o ka ʻike WC, piʻi ka friction coefficient. ʻO kēia no ka nui o nā ʻāpana WC e hoʻonāwaliwali i ka ikaika hoʻopaʻa ma waena o ka uhi a me ka substrate. I ka wā i hoʻokomo ʻia i waho, ʻoi aku ka nui o ka ʻili o ka uhi mai ka substrate, a laila e hōʻemi i ka pale ʻana.
Ua helu ʻia ka nui o ka ʻaʻahu ʻana o kēlā me kēia ʻāpana pale e like me ke ʻano (1), a ua kaha ʻia ka nui o ka ʻaʻahu a me ke kiʻi paʻi o ka FeCoCrNiMn-xWC i nā ʻāpana WC like ʻole, e like me ka hōʻike ʻana ma ke Kiʻi 6. ʻO ka uhi ʻana me ka ʻole o nā ʻāpana WC he 1.308 × 10-5 g / (N·m), ʻo ka nui o ka lole o ka 5% WC composite coating. 1.278×10-5 g/(N·m), ʻo ka nui o ka hoʻohana ʻana o ka 10%WC composite coating he 0.857×10-5 g/(N·m), ka nui o ka lole o ka 15%WC composite coating he 0.917× 10-5 g/(N·m), a ʻo ka nui o ka hoʻohana ʻana o ka 20%WC composite coating he 0.910×10-5 g/(N·m). I waena o lākou, ʻo ka nui o ka ʻaʻahu a me ka nui o ka lole o ka 10% WC composite coating ka haʻahaʻa loa, a ʻo ke kūpaʻa ʻana ka mea maikaʻi loa.
Hōʻike ʻia ka micromorphology o ka uhi ʻana i ka ʻili ma hope o ka friction a me ka hoʻāʻo ʻana ma ka Figure 7. Hōʻike ʻia ka Figure 7 (a) me ka ʻole o ka hoʻohui ʻana i ka WC, ke hōʻike nei ka morphology scary o ka hoʻopili ʻana i ka hoʻopili ikaika ʻana, ʻike ʻia ka mea hoʻopili i ka ʻili a ʻoi aku ka nui. adhesion, a ʻo ke ʻano ʻaʻahu nui ʻo ia ka lole adhesive; Hōʻike ke kiʻi 7 (b) i ke ʻano o ka ʻaʻahu ʻula o ka 5% WC composite coating. ʻO ka hoʻohui ʻana o ka trace WC he hopena hoʻohaʻahaʻa ʻaʻahu i ka uhi ʻana, e hōʻemi ana i ka ʻili ʻana o ka uhi ʻana, a aia nā ʻōʻō palau a me nā oxide metala ma ka wahi ʻaʻahu; Hōʻike ke kiʻi 7 (c) i ke ʻano o ka ʻaʻahu o ka 10% WC composite coating, kahi i hoʻemi ʻia ai ka palau ʻana a hoʻonui ʻia ka ʻili; Hōʻike ke kiʻi 7 (d) i ke ʻano o ka hoʻohana ʻana o ka 15% WC composite coating, kahi e ʻike ʻia ai ka ʻili ʻana a me ka palau ʻana, a ke piʻi aʻe nei ka mea metala ma luna o ka ʻili o ka uhi ʻana; Hōʻike ke kiʻi 7 (e) i ke ʻano o ka ʻaʻahu o ka 20% WC composite uhi. Ke hoʻohui hou ʻia nā ʻāpana WC, hoʻemi nui ʻia ka delamination a me ka hoʻoheheʻe ʻana i ka wahi o ka uhi, a hoʻemi ʻia ka nui o nā lua. Hiki i ka Cr ke hana i nā carbide e like me Cr7C3 a me Fe3C me nā mea e like me Fe a me C, a hana i ka Cr2O3 me ka lubrication paʻa me O. E hoʻokumu ʻo WC i ka hopena paʻa W2C ma hope o ka decomposition, kahi e hoʻomaikaʻi ai i ka pale ʻana o ka pale pale. I ka hōʻuluʻulu ʻana, i hui pū ʻia me ka ʻikepili tribological theory, ʻo ke ʻano o ka ʻaʻahu o ka hoʻopili ʻana he mea nui ka lole abrasive a me ka lole oxidative, i hui pū ʻia me ka lole adhesive.

3 Mea hoʻohana
Ua hoʻohana ʻia nā hopena o kēia pepa i ka hana ʻana i ka uhi ʻili o ka waena waena o ka SGZ800/1710 type scraper conveyor no ka lawe ʻana i ka maina lanahu o Xiʻan Heavy Equipment Pubai Coal Mine Machinery Co., Ltd., a me ka uhi. hiki i ka 3 mm ka mānoanoa. Ma hope o ka hoʻāʻo ʻana i nā lā 240 i ka lua lanahu, ʻo 3 ~ 5 mm ka mānoanoa o ka ʻaʻahu waena, ʻoiai ʻo ka mānoanoa o ka lole pale NM450 he 5 ~ 10 mm, a ua hoʻomaikaʻi maikaʻi ʻia kona pale ʻana.

4 Hoʻopau
(1) ʻO ka hoʻohui ʻana o nā ʻāpana WC i hoʻololi nui i ka microstructure o ka uhi. ʻO ka microstructure o ka FeCoCrNiMn-xWC cladding coating ka mea nui i haku ʻia me nā kristal equiaxed a me nā dendrites columnar. Me ka hoʻonui ʻana o ka ʻike WC, hoʻonui ʻia nā ʻāpana WC a me nā pae BCC, a hoʻomaʻemaʻe nui ʻia ka microstructure o ka uhi. ʻO ka microstructure ka hapa nui o ka FCC a me ka BCC, a loaʻa kahi wahi liʻiliʻi o WC, W2C a me Cr7C3.
(2) He hopena koʻikoʻi ka nui o nā ʻāpana WC i hoʻohui ʻia i nā ʻano mechanical o ka uhi. Me ka hoʻonui ʻana o ka ʻike WC, piʻi nui ka microhardness o ka papa cladding. ʻO ka awelika microhardness o ka 10% WC cladding coating ka mea kiʻekiʻe loa, me ka nui o ka waiwai o 484.5 HV0.3.
(3) ʻO ka haʻahaʻa haʻahaʻa loa o ka poho a me ka hoʻohana ʻana o ka 10% WC cladding coating, ʻo ia ka 0.011 4 g a me 0.857x10-5 g/(N·m) pakahi. ʻOi aku ka maikaʻi o ka pale ʻana. ʻO nā ʻano ʻaʻahu ʻo ia ka lole abrasive a me ka lole oxidative, i hui pū ʻia me ka lole adhesive.