Molybdenum lanthanum alloy properties: Kodi pali kusiyana kotani pakati pa molybdenum lanthanum (Mo-La) alloy ndi TZM molybdenum alloy?

Kodi pali kusiyana kotani pakati pa aloyi ya molybdenum lanthanum (Mo-La) ndi TZM molybdenum alloy?

Kodi aloyi ya molybdenum-lanthanum ndi chiyani? Molybdenum-lanthanum aloyi ndi aloyi wopangidwa ndi maziko zitsulo molybdenum ndi lanthanum trioxide alipo ngati particles omwazikana masanjidwewo. Zomwe zili mu La2O3 mu aloyi nthawi zambiri zimakhala 0.5% ~ 5.0% (kachigawo kakang’ono). Kuti

Kupyolera mu kafukufuku pa ntchito mkulu kutentha ndi lolingana dongosolo la molybdenum-lanthanum aloyi ndi TZM aloyi pa 1000 ~ 1800 ℃. Zotsatira zikuwonetsa kuti kutentha kumatsika kuposa 1400 ℃, aloyi ya molybdenum-lanthanum imakhala ndi mphamvu zambiri komanso pulasitiki. Kutentha kukakhala kokulirapo kapena kofanana ndi 1400 ℃, mphamvu yamphamvu ya aloyi ya molybdenum-lanthanum imachepa, ndipo pulasitiki ya aloyi ya molybdenum-lanthanum imachepanso. Ndi kuwonjezeka kwa kutentha kwa mayeso, mphamvu yamanjenje ya TZM alloy imachepa, koma pulasitiki ya TZM molybdenum alloy imawonjezeka, zomwe ziri zosiyana ndendende ndi aloyi ya molybdenum-lanthanum.

Pa nthawi yomweyi, kaya ndi mphamvu kapena pulasitiki, aloyi ya TZM imafananizidwa ndi aloyi ya molybdenum-lanthanum pa kutentha komweko. Kuwona kwa Microstructure kukuwonetsa kuti ma aloyi awiri a molybdenum ayamba kuwonekeranso pa 1100 ℃ ndikupitilira ku 1550 ℃, ndipo njere zawo zowunikidwanso zimawonetsa mawonekedwe ake, omwe ndi osiyana ndi njere zofananira zomwe zili mumkhalidwe wopangidwanso wa molybdenum yoyera.

1. Chiyambi cha aloyi ya molybdenum lanthanum

Molybdenum lanthanum alloy, yomwe imadziwikanso kuti kutentha kwa molybdenum, mtundu wa MoLa, imapangidwa ndi molybdenum doped ndi tinthu tating’ono ta lanthanum trioxide (La2O3) kuti apange chotchedwa laminated fiber structure. Microstructure yapaderayi imatha kukhala yokhazikika ngakhale kutentha kwambiri mpaka 2000 ° C. Chifukwa chake, molybdenum-lanthanum oxide imatha kukana ngakhale mukamagwiritsidwa ntchito kwambiri. Timagwiritsa ntchito ma aloyi a molybdenum m’zigawo zotentha kwambiri, monga zishango zotentha za ng’anjo ya vacuum, mabwato otsekera ndi ma annealing, mawaya otsekeka kapena ma coil a evaporator.

2. Ubwino wa molybdenum lanthanum alloy:

Apamwamba recrystallization kutentha;

The elongated tinthu dongosolo akhoza kusintha ductility;

Kukana kwa okosijeni kwamphamvu;

Kulimbana ndi kukwawa kwakukulu.

3. Recrystallization kutentha: 1400 ℃ ~ 1500 ℃.

4. Kukana kwa aloyi ya molybdenum-lanthanum (gawo: Ω*mm2/m)

kutentha ℃	20	600	1000	1200	1400	1700	1800	1900	2000
Zosintha	0.054	0.205	0.314	0.374	0.435	0.506	0.525	0.558	0.571

5, Molybdenum lanthanum aloyi kapangidwe

kalasi	Chofunika kwambiri%					(palibe wamkulu kuposa%)
kalasi	Mo	Ti	Zr	C	La2O3	C	0	N	Fe	Ni	Si
Mo1	mmphepete	–	–	–	–	0.01	0.007	0.002	0.01	0.002	0.01
TZM	mmphepete	0.40 ~ 0.55	0.06 ~ 0.12	0.01 ~ 0.04	–	–	0.03	0.002	0.01	0.005	0.005
MoLa	mmphepete	–	–	–	0.4 ~ 1.2	0.01	–	0.002	0.01	0.002	0.01

6, Analimbikitsa pamwamba katundu wa molybdenum-lanthanum aloyi: 4 ~ 9W/cm2