Draw the phase diagram of binary $A(1250C)-B(1000C)$ system using the given information.

A has three polymorphs: $[$A$,$ polimorfa sahiptir$].$ Room Temperature $(RT)$ form of $A,$ transforms to the Mid$-$

Temperature $($MT$)$ form at $250C.[$Oda s$$cakl$$nda kararl faz $($RT$)$ orta s$$cakl$$k $($MT$)$ faz$$na $250C^{\text{'}}$ de ge$$er$].$ The transition from

Mid$-$Temperature $($MT$)$ to High$-$Temp $($HT$)$ form takes place at $1100C[$Orta s$$cakl$$k $($MT$)$ y$$ksek s$$cakl$$k $($HT$)$ d$$n$$m$$

$1100C^{\text{'}}$ de ger$$ekle$$ir$].$

$B$ has two polymorphs; room temperature $($RT$)$ form of $B$ transforms to high$-$temp $B$ at $600C.[$B$\text{'}$nin iki polimorfu

vard$$r$,$ oda s$$cakl$-$y$$ksek s$$cakl$$k d$$n$$m$600C^{\text{'}}$ de ger$$ekle$$ir$].$

There is complete solubility in the liquid phase. $[$S$$v$$ fazda tam $$z$$n$$rl$$k vard$$r$].$

There is no $B$ solid solubility in $A($neither RT$,$ MT nor HT$)[$A i$$erisinde $B$z$$n$$rl$$ yoktur, t$$m fazlar i$$in ge$$erlidir$].$

Solid solubility of $A$ in RT$-$B at room temperature is $1\%$ and its max. value is $4\%.$ The HT$-$B dissolves max.

$12\%$A$.[$RT$-$B i$$erisinde A $$z$$n$$rl$$ oda s$$cakl$$g$$nda $\%1$ ve en fazla ise $\%4\text{'}$d$$r$.$ Y$$ksek s$$cakl$$k $($HT$-$B$)$ faz$$ en fazla $\%12$A $$zer$].$

There exist $5$ intermediate intermetallic compounds. $[$sistemde $5$ adet intermetalik bile$$ik vard$$r$].$

The AB compound $(20\%B)$ is stable only up to $400C,$ at higher temperatures it decomposes to two solids.

This compound exhibits a polymorphic phase transition at $150C.$ bile$$i$$i $400C^{\text{'}}ye$ kadar karar$$r ve $$zerinde iki

kat$$ya ayr$.$ Bu bile$$ik ayr$$ca $150C^{\text{'}}$ de polimorfik bir faz d$$n$$m$$ne u$$rar$].$

The $A{B}_2$ compound $(30\%B)$ is stable above $700C,$ and it melts congruently at $1200C.$ This compound

dissolves max $4\%$A and $2\%$B$.[$AB B$)$ bile$$i$$i $700-1200C$ aral$$nda kararl$$d$$r ve normal ergir. B$$nyesinde en fazla $\%4A$ ve $\%2B$

$$zerek kat eriyik olu$$turur$].$

The $A{B}_3$ compound $(50\%B)$ melts congruently at $1400C.$ This compound exhibits a phase transition at $500C.$

bile$$i$$i $1400C^{\text{'}}$ de normal ergir, bu bile$$ik $500C\text{'}$de bir faz de$$i$$imi g$$sterir$].$

The $A{B}_4$ compound $(60\%B)$ melts incongruently at $1150C.$ It dissolves max $4\%B,($no RT solub.$)$

bile$$i$$i $1150C^{\text{'}}$ de anormal ergir. Oda s$$cakl$$nda s$$f$$r B $$zer ve en fazla $4\%B$z$$n$$r$].$

The $A{B}_5$ compound $(70\%B)$ melts incongruently at $900C.$ bile$$i$$i $900C\text{'}$de anormal ergir$].$

Eutectic points are $[$tektik noktalar$]$: $,12\%B,1000C$;$42\%B,1150C$;$80\%B,650C$

Eutectoidic point is $[$tektoidik nokta$]$: $,92\%B,450C.$

Peritectic points are $[$Peritektik noktalar$]$: $,66\%B,1100C$;$74\%B,900C$