Molybdenum lanthanum alloy zog: Qhov txawv ntawm molybdenum lanthanum (Mo-La) alloy thiab TZM molybdenum alloy yog dab tsi?

Dab tsi yog qhov txawv ntawm molybdenum lanthanum (Mo-La) alloy thiab TZM molybdenum alloy?

Dab tsi yog molybdenum-lanthanum alloy? Molybdenum-lanthanum alloy yog ib qho alloy uas tsim los ntawm cov hlau molybdenum thiab lanthanum trioxide tam sim no raws li dispersed hais nyob rau hauv lub matrix. Cov ntsiab lus ntawm La2O3 nyob rau hauv cov hlau yog feem ntau 0.5% ~ 5.0% (cov feem ntau). Rau

Los ntawm kev tshawb fawb ntawm qhov kub thiab txias kev ua tau zoo thiab cov qauv sib xws ntawm molybdenum-lanthanum alloy thiab TZM alloy ntawm 1000 ~ 1800 ℃. Cov txiaj ntsig tau pom tias thaum qhov kub thiab txias qis dua 1400 ℃, molybdenum-lanthanum alloy muaj kev ua tau zoo dua ntawm lub zog thiab plasticity. Thaum qhov kub siab tshaj lossis sib npaug ntawm 1400 ℃, lub zog tensile ntawm molybdenum-lanthanum alloy txo qis, thiab plasticity ntawm molybdenum-lanthanum alloy kuj txo. Nrog rau qhov nce ntawm qhov ntsuas kub, lub zog tensile ntawm TZM alloy txo qis, tab sis cov yas ntawm TZM molybdenum alloy nce, uas yog qhov sib txawv ntawm molybdenum-lanthanum alloy.

Nyob rau tib lub sijhawm, txawm tias nws yog lub zog lossis yas, TZM alloy yog piv nrog molybdenum-lanthanum alloy ntawm tib qhov kub. Kev soj ntsuam microstructure qhia tau hais tias ob lub molybdenum alloys pib recrystallize ntawm 1100 ℃ thiab txuas mus rau 1550 ℃, thiab lawv cov nplej recrystallized qhia elongated qauv, uas txawv ntawm cov nplej equiaxed nyob rau hauv recrystallized lub xeev ntawm ntshiab molybdenum.

1. Taw qhia rau molybdenum lanthanum alloy

Molybdenum lanthanum alloy, tseem hu ua kub molybdenum, hom MoLa, yog ua los ntawm molybdenum doped nrog ib tug me me ntawm lanthanum trioxide (La2O3) hais los ua ib tug thiaj li hu ua laminated fiber ntau qauv. Qhov tshwj xeeb microstructure no tuaj yeem nyob ruaj khov txawm tias qhov kub thiab txias li 2000 ° C. Yog li ntawd, molybdenum-lanthanum oxide muaj creep kuj txawm nyob rau hauv huab mob ntawm kev siv. Peb tsuas yog ua cov txheej txheem xws li molybdenum alloys rau hauv qhov kub-kub qhov cub, xws li lub tshuab nqus tsev rau cua sov, sintering thiab annealing nkoj, stranded xov hlau los yog evaporator coils.

2. Qhov zoo ntawm molybdenum lanthanum alloy:

Siab dua recrystallization kub;

Cov qauv elongated particle tuaj yeem txhim kho ductility;

Muaj zog oxidation tsis kam;

Siab creep kuj.

3. Recrystallization kub: 1400 ℃ ~ 1500 ℃.

4. Resistivity ntawm molybdenum-lanthanum alloy (unit: Ω * mm2 / m)

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

5, Molybdenum lanthanum alloy muaj pes tsawg leeg

qib	Cov khoom tseem ceeb%					(tsis ntau tshaj%)
qib	Mo	Ti	Zr	C	lwj 2o3	C	0	N	Fe	Ni	Si
Mo1	paj tau paj	–	–	–	–	0.01	0.007	0.002	0.01	0.002	0.01
TZM	paj tau paj	0.40 ~ 0.55	0.06 ~ 0.12	0.01 ~ 0.04	–	–	0.03	0.002	0.01	0.005	0.005
MoLa	paj tau paj	–	–	–	0.4 ~ 1.2	0.01	–	0.002	0.01	0.002	0.01

6, Pom zoo deg load ntawm molybdenum-lanthanum alloy: 4 ~ 9W / cm2